Вуглецеві нанотрубки та застосування їх для генетичної трансформації рослин

Охарактеризовано властивості вуглецевих нанотрубок як перспективного длязастосування у біотехнології класу наноматеріалів. Обговорюється питання функціоналізації вуглецевих нанотрубок для підвищення біологічної сумісності їх.Висвітлено переваги застосування вуглецевих нанотрубок для розроблення нови...

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Бібліографічні деталі
Опубліковано в: :Наноструктурное материаловедение
Дата:2011
Автори: Бурлака, О.М., Пірко, Я.В., Ємець, А.І., Блюм, Я.Б.
Формат: Стаття
Мова:Українська
Опубліковано: Інститут проблем матеріалознавства ім. І.М. Францевича НАН України 2011
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Онлайн доступ:https://nasplib.isofts.kiev.ua/handle/123456789/62783
Теги: Додати тег
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Назва журналу:Digital Library of Periodicals of National Academy of Sciences of Ukraine
Цитувати:Вуглецеві нанотрубки та застосування їх для генетичної трансформації рослин / О.М. Бурлака, Я.В. Пірко, А.І. Ємець, Я.Б. Блюм // Наноструктурное материаловедение. — 2011. — № 2. — С. 84-101. — Бібліогр.: 138 назв. — укр.

Репозитарії

Digital Library of Periodicals of National Academy of Sciences of Ukraine
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author Бурлака, О.М.
Пірко, Я.В.
Ємець, А.І.
Блюм, Я.Б.
author_facet Бурлака, О.М.
Пірко, Я.В.
Ємець, А.І.
Блюм, Я.Б.
citation_txt Вуглецеві нанотрубки та застосування їх для генетичної трансформації рослин / О.М. Бурлака, Я.В. Пірко, А.І. Ємець, Я.Б. Блюм // Наноструктурное материаловедение. — 2011. — № 2. — С. 84-101. — Бібліогр.: 138 назв. — укр.
collection DSpace DC
container_title Наноструктурное материаловедение
description Охарактеризовано властивості вуглецевих нанотрубок як перспективного длязастосування у біотехнології класу наноматеріалів. Обговорюється питання функціоналізації вуглецевих нанотрубок для підвищення біологічної сумісності їх.Висвітлено переваги застосування вуглецевих нанотрубок для розроблення новихсистем генетичної трансформації рослин та пов’язані із цим проблеми. Описанометодику отримання диспергованих у воді комплексів ДНК з багатошаровими вуглецевими нанотрубками. Охарактеризованы свойства углеродных нанотрубок как перспективного для применения в биотехнологии классананоматериалов. Обсуждается вопрос функционализации углеродных нанотрубок для повышения их биологическойсовместимости. Освещены преимущества применения углеродных нанотрубок для разработки новых систем генетической трансформации растений и связанные с этим проблемы. Описана методика получения диспергированных вводе комплексов ДНК с многослойными углеродными нанотрубками. Properties of the carbon nanotubes as nanomaterials having great promises for biotechnological applications are characterized. The issue of increased biocompatibility functionalization of carbon nanotubes is discussed. The advantages and problems of using carbon nanotubes for the development of novel systems for plant genetic transformation are elucidated. Production of aqueous dispersion of multi-walled carbon nanotubes with DNA is described.
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format Article
fulltext Íàíîñòðóêòóðíîå ìàòåðèàëîâåäåíèå, 2011, ¹ 2 84 ÁÈÎÍÀÍÎÌÀÒÅÐÈÀËÛ ÓÄÊ 604.6+546.26-03 Î.Ì. Áóðëàêà, ß.Â. ϳðêî, À.². ªìåöü, ß.Á. Áëþì ²íñòèòóò õàð÷îâî¿ á³îòåõíîëî㳿 òà ãåíîì³êè ÍÀÍ Óêðà¿íè ì. Êè¿â, âóë. Îñèïîâñüêîãî, 2à, Óêðà¿íà, 04123 ÂÓÃËÅÖŲ ÍÀÍÎÒÐÓÁÊÈ ÒÀ ÇÀÑÒÎÑÓÂÀÍÍß ¯Õ ÄËß ÃÅÍÅÒÈ×Íί ÒÐÀÍÑÔÎÐÌÀÖ²¯ ÐÎÑËÈÍ Êëþ÷îâ³ ñëîâà: âóãëåöåâ³ íàíî- òðóáêè, ãåíåòè÷íà òðàíñôîðìàö³ÿ ðîñëèí Îõàðàêòåðèçîâàíî âëàñòèâîñò³ âóãëåöåâèõ íàíîòðóáîê ÿê ïåðñïåêòèâíîãî äëÿ çàñòîñóâàííÿ ó á³îòåõíîëî㳿 êëàñó íàíîìàòåð³àë³â. Îáãîâîðþºòüñÿ ïèòàííÿ ôóíêö³îíàë³çàö³¿ âóãëåöåâèõ íàíîòðóáîê äëÿ ï³äâèùåííÿ á³îëîã³÷íî¿ ñóì³ñíîñò³ ¿õ. Âèñâ³òëåíî ïåðåâàãè çàñòîñóâàííÿ âóãëåöåâèõ íàíîòðóáîê äëÿ ðîçðîáëåííÿ íîâèõ ñèñòåì ãåíåòè÷íî¿ òðàíñôîðìàö³¿ ðîñëèí òà ïîâ’ÿçàí³ ³ç öèì ïðîáëåìè. Îïèñàíî ìåòîäèêó îòðèìàííÿ äèñïåðãîâàíèõ ó âîä³ êîìïëåêñ³â ÄÍÊ ç áàãàòîøàðîâèìè âóãëåöåâèìè íàíîòðóáêàìè. Ïðîòÿãîì îñòàííüîãî äåñÿòèë³òòÿ çíà÷íî çð³ñ ³íòåðåñ äî íîâèõ íàíîìàòåð³àë³â òà ïðàêòè÷íîãî çàñòîñóâàííÿ ¿õ. Öå çóìîâëåíî, ç îäíîãî áîêó, òåõíîëîã³÷íèìè äîñÿãíåííÿìè, ùî íàðåøò³ äàëè çìîãó òåîðåòè÷íî òà ïðàêòè÷íî îñâî¿òè íàíîð³âåíü, à ç ³íøîãî – íàäçâè- ÷àéíî âåëèêèìè ìîæëèâîñòÿìè, ÿê³ â³äêðèâຠâèêîðèñòàííÿ íàíî- ìàòåð³àë³â. Îñê³ëüêè íàíîòåõíîëîã³ÿ ðîçðîáëÿº, îòðèìóº òà âèâ÷ຠíàíîðîçì³ðí³ ñòðóêòóðè íà ð³âí³ àòîì³â, ìîëåêóë ÷è ìàêðîìîëåêóë, á³îëîã³÷í³ ñèñòåìè â³äïîâ³äíîãî ìàñøòàáó àêòèâíî âêëþ÷àþòüñÿ ó íàíîòåõíîëîã³÷í³ ðîçðîáêè â òàêèõ ãàëóçÿõ, ÿê á³îìåäèöèíà òà á³î- òåõíîëîã³ÿ; â òàêîìó ðàç³ âîíà ³äåíòèô³êóºòüñÿ âæå ÿê íàíîá³îòåõ- íîëîã³ÿ [1]. Íèí³ ³íòåíñèâíî ðîçðîáëÿþòüñÿ ìåòîäèêè âèêîðèñòàííÿ íàíîìàòåð³àë³â äëÿ àäðåñíî¿ äîñòàâêè ë³êàðñüêèõ çàñîá³â ïðè ë³êó- âàíí³ îíêîëîã³÷íèõ òà ³íøèõ çàõâîðþâàíü, à òàêîæ äëÿ äîñòàâêè ð³çíèõ á³îìîëåêóë, çîêðåìà ÄÍÊ, ó æèâ³ êë³òèíè. Âåäóòüñÿ äîñë³- äæåííÿ â íàïðÿì³ ñòâîðåííÿ á³îñåíñîð³â ³ êîíñòðóþâàííÿ òêàíèí. Âàæëèâó ðîëü ó ðîçâèòêó íàíîá³îòåõíîëî㳿 ç îãëÿäó íà íèçêó âèíÿò- êîâèõ âëàñòèâîñòåé â³ä³ãðàþòü âóãëåöåâ³ íàíîìàòåð³àëè – ôóëåðåíè é íàíîòðóáêè [2–6]. Õàðàêòåðèñòèêà âóãëåöåâèõ íàíîòðóáîê Óïåðøå äàí³ ïðî âóãëåöåâ³ íàíîòðóáêè (ÂÍÒ) áóëî îïóáë³êîâàíî â 1991 ð. [7]. Çãîäîì áóëî âñòàíîâëåíî, ùî ÂÍÒ âëàñòèâ³ âèñîê³ òâåðä³ñòü, åëåêòðî- é òåïëîïðîâ³äí³ñòü. Ñàìå òîìó äîíåäàâíà ¿õ âèêîðèñòîâóâàëè çäåá³ëüøîãî ÿê êàòàë³çàòîðè, äëÿ ïîãëèíàííÿ é åê- ðàíóâàííÿ åëåêòðîìàãí³òíèõ õâèëü, ïåðåòâîðåííÿ åíåð㳿, â àíîäàõ ë³ò³ºâèõ áàòàðåé, äëÿ çáåð³ãàííÿ âîäíþ, ñòâîðåííÿ êîìïîçèòíèõ ìà- òåð³àë³â, äàò÷èê³â, ñóïåðêîíäåíñàòîð³â òîùî. Ïðîâåäåííÿ ÷èñëåí- íèõ äîñë³äæåíü äîïîìîãëî íàêîïè÷èòè çíà÷íèé ìàñèâ äàíèõ ñòî- © Î.Ì. ÁÓÐËÀÊÀ, ß.Â. ϲÐÊÎ, À.². ªÌÅÖÜ, ß.Á. ÁËÞÌ, 2011 85 М АТ ЕР ИА ЛО ВЕ Д ЕН ИЕ Íàíîñòðóêòóðíîå ìàòåðèàëîâåäåíèå, 2011, ¹ 2 ñîâíî áóäîâè òà âëàñòèâîñòåé öèõ íàíîìàòåð³- àë³â, ùî ñòâîðèëî ï³ä´ðóíòÿ äëÿ ðîçðîáëåííÿ ìåòîäèê çàñòîñóâàííÿ ¿õ òàêîæ ó ìåäèöèí³ òà á³îòåõíîëî㳿 [8]. Êëàñèô³êàö³ÿ ÂÍÒ áàçóºòüñÿ íà ê³ëüêîñò³ ¿õí³õ øàð³â (ñò³íîê). Çàãàëîì ÂÍÒ ìîæóòü ì³ñòè- òè äî ê³ëüêîõ ñîòåíü çãîðíóòèõ ó áåçøîâíó òðóá- êó øàð³â, äå àòîìè âóãëåöþ ôîðìóþòü ãåêñàãî- íàëüíó ðåø³òêó. Ó ñòðóêòóð³ ÂÍÒ âèîêðåìëþ- þòü äâ³ çîíè: âëàñíå òðóáêó ç ãåêñàãîíàëüíèì ðîçì³ùåííÿì àòîì³â âóãëåöþ òà êåïè (ê³í÷èêè). Êåïè ñêëàäàþòüñÿ ç ï’ÿòè- é øåñòè÷ëåííèõ öèêë³â, óòâîðåíèõ àòîìàìè âóãëåöþ, ïîä³áíî äî ï³âñôåðè ìîëåêóëè ôóëåðåíó [9]. ³äïîâ³äíî äî öüîãî ÂÍÒ êëàñèô³êóþòüñÿ ÿê áàãàòîøàðîâ³ âóãëåöåâ³ íàíîòðóáêè (ÁØÂÍÒ, àíãë. multi-walled carbon nanotubes – MWNTs) òà îäíîøàðîâ³ âóã- ëåöåâ³ íàíîòðóáêè (ÎØÂÍÒ, àíãë. single-walled carbon nanotubes – SWNTs) [10]. ÁØÂÍÒ ñêëà- äàþòüñÿ ç ê³ëüêîõ êîàêñ³àëüíèõ öèë³íäð³â, êîæåí ³ç ÿêèõ ÿâëÿº ñîáîþ çãîðíóòèé îäèíàðíèé øàð ãðàôåíó. Äëÿ îòðèìàííÿ ¿õ âèêîðèñòîâóþòü äó- ãîâèé çàðÿä [11] àáî õ³ì³÷íå îñàäæåííÿ ç ïàðî- âî¿ ôàçè [12] çà ïðèñóòíîñò³ êàòàë³çàòîð³â. Çîâí³øí³é ä³àìåòð ÁØÂÍÒ âàð³þº â³ä 2 äî 100 íì, òîä³ ÿê âíóòð³øí³é ä³àìåòð ó ñåðåäíüîìó ñòàíîâèòü 1–3 íì. Äîâæèíà ÁØÂÍÒ ìîæå êî- ëèâàòèñÿ â ìåæàõ â³ä îäíîãî äî ê³ëüêîõ ì³êðî- ìåòð³â [13]. ÎØÂÍÒ ñêëàäàþòüñÿ ç îäèíàðíî- ãî ãðàôåíîâîãî öèë³íäðà, à ¿õí³é ä³àìåòð ñòàíî- âèòü 0,4–2 íì [14]. ÎØÂÍÒ çà ðàõóíîê ñèë Âàí-äåð-Âààëüñà çàçâè÷àé óòâîðþþòü ãåêñàãî- íàëüí³ ù³ëüíî âïàêîâàí³ ïó÷êè. ÎØÂÍÒ îòðè- ìóþòü çà äîïîìîãîþ äóãîâîãî çàðÿäó [15], ëàçåð- íî¿ àáëÿö³¿ [16], õ³ì³÷íîãî îñàäæåííÿ ç ïàðîâî¿ ôàçè [18] òà ãàçîôàçíèõ êàòàë³òè÷íèõ ïðîöåñ³â [19]. Ñèíòåç ¿õ òàêîæ ïîòðåáóº ïðèñóòíîñò³ ìåòàëó- êàòàë³çàòîðà (Fe, Ni, Co, Y, Mo). Çàëåæíî â³ä òîãî, ÿêèì ÷èíîì äâîâèì³ðíà ìîëåêóëà ãðàôå- íó çãîðíóòà ñòîñîâíî ¿¿ ãåêñàãîíàëüíî¿ ðåø³òêè, ÎØÂÍÒ ïîä³ëÿþòü íà òðè òèïè, ÿê³ ð³çíÿòüñÿ çà áóäîâîþ òà ô³çèêî-õ³ì³÷íèìè âëàñòèâîñòÿìè, – armñhair, zig-zag ³ õ³ðàëüí³ [19–21]. Âàðòî çàçíà÷èòè, ùî îïèñàí³ ìåòîäè îäåð- æàííÿ ÂÍÒ äîñèòü âèòðàòí³ åêîíîì³÷íî. Òàê, äóãîâèé ðîçðÿä ³ ëàçåðíà àáëÿö³ÿ ïîòðåáóþòü âåëèêî¿ ê³ëüêîñò³ åíåð㳿 äëÿ ïðîñòîðîâî¿ ðåîð- ãàí³çàö³¿ âçàºìíîãî ðîçì³ùåííÿ àòîì³â âóãëåöþ [22], à êàòàë³çîâàíå õ³ì³÷íå îñàäæåííÿ ç ïàðîâî¿ ôà- çè – äëÿ ðîçùåïëåííÿ íèçüêîìîëåêóëÿðíèõ ãà- çîïîä³áíèõ âóãëåâîäí³â [23]. Òîìó òðèâຠïîøóê àëüòåðíàòèâíèõ, ìåíø âèòðàòíèõ åíåðãåòè÷íî ìåòîä³â îòðèìàííÿ ÂÍÒ. Òàê, ðîçðîáëåíî ìå- òîäè ñèíòåçó ÂÍÒ ç â³äíîâëþâàíèõ ðåñóðñ³â – ðîñëèííèõ âîëîêîí (çîêðåìà äåðåâèíè Pinus ponderosa, ñóõîãî áàìáóêà, îðãàíîðîç÷èííîãî ë³ãí³íó, áåççîëüíîãî ô³ëüòðóâàëüíîãî ïàïåðó, α-öåëþëîçè é ì³êðîêðèñòàë³÷íî¿ öåëþëîçè) ç âèêîðèñòàííÿì öèêë³÷íîãî îêèñíåííÿ, ùî ïîòðåáóº ìåíøèõ âèòðàò åíåð㳿 òà, â³äïîâ³äíî, êîøò³â [24]. Ïåðåä áåçïîñåðåäí³ì âèêîðèñòàííÿì ÂÍÒ òðåáà î÷èñòèòè, îñê³ëüêè âîíè ì³ñòÿòü çàëèøêè ìåòàëó-êàòàë³çàòîðà é àìîðôíîãî âóãëåöþ. Òîìó ðîçðîáëåíî ñïåö³àëüí³ ìåòîäè î÷èùåííÿ ÂÍÒ, ùî ïåðåäáà÷àþòü òàê³ åòàïè: ãàçî- ÷è ïàðîôàç- íå îêèñíåííÿ, âîëîãå õ³ì³÷íå îêèñíåííÿ, öåíò- ðèôóãóâàííÿ, ô³ëüòðàö³þ, õðîìàòîãðàô³þ òî- ùî [25, 26]. Äëÿ îö³íêè ÿêîñò³ ÂÍÒ çàñòîñîâó- þòü ñïåêòðîñêîï³þ Ðàìàíà, ñïåêòðîñêîï³þ áëèçüêîãî ³íôðà÷åðâîíîãî ä³àïàçîíó, òåðìîãðà- â³ìåòðè÷íèé àíàë³ç ³ êîìá³íàö³¿ öèõ àíàë³òè÷íèõ ìåòîä³â [27–29]. Ôóíêö³îíàë³çàö³ÿ ÂÍÒ Ïîâåðõíÿ ÂÍÒ ìຠ÷³òêî âèðàæåí³ ã³äðîôîáí³ âëàñòèâîñò³. Ç îãëÿäó íà öå äëÿ á³îëîã³÷íîãî çàñòîñóâàííÿ ¿õ ôóíêö³îíàë³çóþòü ³ç ìåòîþ îäåðæàííÿ âîäíèõ ñèñòåì äèñïåðãîâàíèõ ÂÍÒ, à òàêîæ ï³äâèùåííÿ á³îäîñòóïíîñò³ òà çíèæåí- íÿ òîêñè÷íîñò³ [30, 31]. Á³ëüøå òîãî, âàðòî çà- çíà÷èòè, ùî çàãàëîì ÂÍÒ ïîãàíî äèñïåðãóþòü- ñÿ ó á³ëüøîñò³ ðîç÷èííèê³â. Ñèëüíà âàíäåðâà- àëüñîâà âçàºìîä³ÿ ì³æ îêðåìèìè ÂÍÒ ïðèçâî- äèòü äî àãðåãàö³¿ ¿õ ó ð³äêîìó ñåðåäîâèù³ [32]. Ïðîöåñ ôóíêö³îíàë³çàö³¿ ïîëÿãຠó çì³í³ ïîâåðõ- íåâèõ âëàñòèâîñòåé íàíîòðóáîê øëÿõîì ïðè- ºäíàííÿ ïåâíèõ õ³ì³÷íèõ ãðóï ÷è ìîëåêóë. Ö³ àãåíòè çì³íþþòü ã³äðîôîáí³ âëàñòèâîñò³ ñò³íîê ÂÍÒ íà õàðàêòåðí³ äëÿ ïðèºäíàíèõ ìîëåêóë. Âèêîðèñòîâóþòü ïîâåðõíåâó ôóíêö³îíàë³çàö³þ ÂÍÒ äâîõ òèï³â – êîâàëåíòíó é íåêîâàëåíòíó. Õ³ì³÷í³ ðåàêö³¿ óòâîðåííÿ çâ’ÿçê³â ³ç á³÷íèìè 86 Íàíîñòðóêòóðíîå ìàòåðèàëîâåäåíèå, 2011, ¹ 2 ÁÈÎÍÀÍÎÌÀÒÅÐÈÀËÛ ñò³íêàìè ÂÍÒ çàñòîñîâóþòü äëÿ êîâàëåíòíî¿ ôóíêö³îíàë³çàö³¿. Íàòîì³ñòü íåêîâàëåíòíà ôóíê- ö³îíàë³çàö³ÿ ïåðåäáà÷ຠâèêîðèñòàííÿ âçàºìî䳿 ì³æ ã³äðîôîáíèìè äîìåíàìè àìô³ô³ëüíèõ ìî- ëåêóë òà ïîâåðõíåþ ÂÍÒ. Ïðè öüîìó â³äáóâàºòü- ñÿ ñóïðàìîëåêóëÿðíà àäñîðáö³ÿ ÷è îáãîðòàííÿ ÂÍÒ ð³çíèìè ôóíêö³îíàëüíèìè ìîëåêóëàìè. Ó òàêèé ñïîñ³á îäåðæóþòü âîäí³ ñèñòåìè ÂÍÒ. Õ³ì³÷íà ôóíêö³îíàë³çàö³ÿ íàäຠÂÍÒ çäàòíîñò³ âçàºìîä³ÿòè ç ïåâíèìè ñïîëóêàìè, à òàêîæ äèñ- ïåðãóâàòèñÿ â ð³çíèõ ñåðåäîâèùàõ ç óòâîðåííÿì êîëî¿äíèõ ðîç÷èí³â. Ïðè öüîìó äîö³ëüíî âæèâà- òè òåðì³í «êîëî¿äíèé», îñê³ëüêè ñàìå â³í õàðàê- òåðèçóº äèñïåðãîâàí³ â ð³äê³é ôàç³ ÷àñòèíêè, õî÷à á îäèí ³ç âèì³ð³â ÿêèõ êîëèâàºòüñÿ â ìåæàõ â³ä ê³ëüêîõ äî òèñÿ÷³ íàíîìåòð³â, à â ³ñòèííèõ ðîç- ÷èíàõ äèñïåðãîâàí³ ìîëåêóëè àáî ³îíè óòâîðþ- þòü êîìïëåêñè ðîçì³ðîì äî ê³ëüêîõ íàíîìåòð³â. Âîäí³ ñèñòåìè ÂÍÒ ìîæóòü ìàòè ð³çíó ñòà- á³ëüí³ñòü. Öå ìîæíà ïîÿñíèòè ñõèëüí³ñòþ ÷àñòèíîê ó êîëî¿äíèõ ðîç÷èíàõ ïîñòóïîâî àãðå- ãóâàòè é îñ³äàòè [33]. Ðåàêòèâí³ñòü ÂÍÒ ïîâ’ÿ- çàíî ç ðîçá³æí³ñòþ π-îðá³òàëåé ñóì³æíèõ àòîì³â êàðáîíó âíàñë³äîê äåôîðìàö³¿, ³íäóêîâàíî¿ ïðî- ñòîðîâèì âèêðèâëåííÿì [34]. Òàêó äåôîðìàö³þ á³ëüøå âèðàæåíî â àòîì³â âóãëåöþ, ðîçì³ùåíèõ íà êåïàõ, îñê³ëüêè â öèõ çîíàõ âèêðèâëåííÿ â³äáó- âàºòüñÿ ó äâîõ ïëîùèíàõ. Òîìó êåïè ÂÍÒ º á³ëüø ðåàêö³éíîçäàòíèìè, àí³æ á³÷í³ ñò³íêè. Êîâàëåíòíà ôóíêö³îíàë³çàö³ÿ. Ñåðåä ðå- àêö³é, ùî âèêîðèñòîâóþòüñÿ äëÿ êîâàëåíòíî¿ ôóíêö³îíàë³çàö³¿ ÂÍÒ, íàé÷àñò³øå çàñòîñîâóþòü îêèñíåííÿ àçîòíîþ òà ñ³ð÷àíîþ êèñëîòîþ. Ïðè öüîìó ä³ÿ ïîòóæíèõ îêèñíèê³â ñïðè÷èíÿº ðîçðèâ àðîìàòè÷íèõ ê³ëåöü íà êåïàõ ³ äåôåêòàõ á³÷íèõ ñò³íîê ÂÍÒ òà ãåíåðóº âèíèêíåííÿ êàðáîêñèëü- íèõ ãðóï, ÿê³ ìîæóòü áðàòè ó÷àñòü ó äàëüøèõ õ³ì³÷íèõ ðåàêö³ÿõ. Ðîçðèâ àðîìàòè÷íèõ ê³ëåöü íà êåïàõ óíàñë³äîê 䳿 ñèëüíèõ îêèñíèê³â ïðè- çâîäèòü äî óòâîðåííÿ òàê çâàíèõ â³äêðèòèõ ê³íö³â ÂÍÒ [35]. Õî÷à îêèñíåí³ ÂÍÒ çäàòí³ äèñïåðãó- âàòèñÿ ó âîä³, âîíè óòâîðþþòü àãðåãàòè ó ïðè- ñóòíîñò³ ñîëåé, îñê³ëüêè â³äáóâàºòüñÿ åêðàíó- âàííÿ çàðÿäó. Òîìó òàê³ ÂÍÒ íå ìîæíà áåçïî- ñåðåäíüî âèêîðèñòîâóâàòè ó á³îëîã³÷íèõ ðîçðîáêàõ ÷åðåç âèñîêèé âì³ñò ñîëåé ó á³ëüøîñò³ á³îëîã³÷íèõ ðîç÷èí³â. Ïîäàëüøà ìîäèô³êàö³ÿ ÂÍÒ ÷àñòî ïîëÿãຠó ïðèºäíàíí³ ã³äðîô³ëüíèõ ïîë³ìåð³â, çîêðåìà ïîë³åòèëåíãë³êîëþ (ÏÅÃ), äî îêèñíåíèõ ÂÍÒ. Öå äຠçìîãó îòðèìàòè ñòàá³ëüí³ ó á³îëîã³÷íèõ ñåðåäîâèùàõ êîí’þãàòè ÂÍÒ–ïîë³ìåð [36, 37]. Òàê, êîâàëåíòíå ïðèºäíàí- íÿ ïîë³(ì-àì³íîáåíçîëñóëüôîíîâî¿) êèñëîòè äî ÎØÂÍÒ äຠçìîãó îäåðæàòè çäàòíèé äèñïåð- ãóâàòèñÿ ó âîä³ êîïîë³ìåð, ÿêèé ìîæíà âèêîðèñ- òîâóâàòè ó á³îëîã³÷íèõ äîñë³äæåííÿõ [38]. ²íøèé òèï ðåàêö³é, ÿê³ çàñòîñîâóþòü äëÿ êî- âàëåíòíî¿ ôóíêö³îíàë³çàö³¿ ÂÍÒ, – öèêëîïðèºä- íàííÿ. Öÿ ðåàêö³ÿ çä³éñíþºòüñÿ íà àðîìàòè÷- íèõ á³÷íèõ ñò³íêàõ ÂÍÒ, íà â³äì³íó â³ä îêèñíåí- íÿ, ÿêå â³äáóâàºòüñÿ íà êåïàõ ³ äåôåêòàõ á³÷íèõ ñò³íîê. Öèêëîïðèºäíàííÿ ìîæå â³äáóâàòèñÿ çà ðàõóíîê ôîòîõ³ì³÷íèõ ðåàêö³é ÂÍÒ ç àçèäà- ìè [39] ÷è êàðáåí-ãåíåðóâàëüíèìè êîìïîíåí- òàìè [40]. Îêð³ì òîãî, äëÿ êîâàëåíòíî¿ ôóíêö³î- íàë³çàö³¿ ÂÍÒ âèêîðèñòîâóþòü çâ’ÿçóâàííÿ äîâ- ãîëàíöþãîâèõ âóãëåâîäí³â ³ç â³äêðèòèìè ê³íöÿ- ìè ÎØÂÍÒ [41], ïðèºäíàííÿ àì³äíèõ ãðóï òà åòåðèô³êàö³þ îêèñíåíèõ ÎØÂÍÒ [42]. Çà- ñòîñîâóþòü òàêîæ îáðîáêó òàêèìè âèñîêîàêòèâ- íèìè àãåíòàìè, ÿê êàðáåíè [43], ôòîð [44], àðèëüí³ ðàäèêàëè [45] é àçîìåòèíîâ³ ³ë³äè [46] òîùî. Âàðòî çàçíà÷èòè, ùî ÷àñòî ïðè êîâà- ëåíòí³é ôóíêö³îíàë³çàö³¿ òàê³ ñïåöèô³÷í³ âëàñòè- âîñò³ ÂÍÒ, ÿê ôîòîëþì³íåñöåíö³ÿ òà ðàìàí³âñü- êå ðîçñ³þâàííÿ, çäåá³ëüøîãî âòðà÷àþòüñÿ ÷å- ðåç ïîðóøåííÿ ñòðóêòóðè π-ìåðåæ³ ÂÍÒ. Öå âíåìîæëèâëþº çàñòîñóâàííÿ îïòè÷íèõ ìåòîä³â àíàë³çó ùîäî òàêèõ ìàòåð³àë³â [34]. Íåêîâàëåíòíà ôóíêö³îíàë³çàö³ÿ ÂÍÒ. Íå- êîâàëåíòíà ôóíêö³îíàë³çàö³ÿ ÂÍÒ ́ ðóíòóºòüñÿ íà âèêîðèñòàíí³ ñèë Âàí-äåð-Âààëüñà òà π–π-âçàº- ìîä³é. Âîíà çä³éñíþºòüñÿ çà ðàõóíîê àäñîðáö³¿ ÷è çãîðòàííÿ íàâêîëî ïîâåðõí³ ÂÍÒ àìô³ô³ëü- íèõ ìîëåêóë ñóðôàêòàíòó, àðîìàòè÷íèõ ñïîëóê, ïîë³ìåð³â àáî á³îìîëåêóë [32]. Ó òàêîìó ðàç³ ñòðóêòóðà π-ìåðåæ³ ÂÍÒ íå ïîðóøóºòüñÿ. ³äáóâàºòüñÿ ëèøå âêîðî÷åííÿ ÂÍÒ âíàñë³äîê îáðîáêè óëüòðàçâóêîì, ÿêó ÷àñòî çàñòîñîâóþòü ó ïðîöåñ³ ôóíêö³îíàë³çàö³¿. Ïðè öüîìó çà óìîâ íåêîâàëåíòíîãî ïðèºäíàííÿ ôóíêö³îíàëüíèõ ñïî- ëóê ô³çè÷í³ âëàñòèâîñò³ ÂÍÒ çäåá³ëüøîãî çáåð³- ãàþòüñÿ. Ïîë³àðîìàòè÷í³ ãðàôåíîâ³ ïîâåðõí³ ÂÍÒ çäàòí³ çâ’ÿçóâàòè àðîìàòè÷í³ ìîëåêóëè çà 87 М АТ ЕР ИА ЛО ВЕ Д ЕН ИЕ Íàíîñòðóêòóðíîå ìàòåðèàëîâåäåíèå, 2011, ¹ 2 ðàõóíîê π–π-ñòåê³íã-âçàºìî䳿. Ç îãëÿäó íà çäàòí³ñòü ï³ðåíó âñòóïàòè ó π–π-âçàºìîä³þ ç ïîâåðõíåþ ÂÍÒ ïîõ³äí³ ï³ðåíó âèêîðèñòîâóþòü äëÿ íåêîâàëåíòíî¿ ôóíêö³îíàë³çàö³¿ ÂÍÒ [47, 48]. Çà àíàëîã³÷íèì ïðèíöèïîì çàñòîñîâóþòü ³íø³ àðîìàòè÷í³ ìîëåêóëè, çîêðåìà ïîõ³äí³ ïîðô³ðè- íó [49]. Ìîëåêóëè ñóêöèí³ì³äèëîâîãî åô³ðó 1-ï³ðåíáóòàíîºâî¿ êèñëîòè íåêîâàëåíòíî àäñîð- áóþòüñÿ íà ã³äðîôîáí³é ïîâåðõí³ ÎØÂÍÒ âíàñë³äîê π–π-ñòåê³íãó. Àäñîðáö³ÿ ¿õ íà ÂÍÒ óìîæëèâëþº äàëüøå ïðèºäíàííÿ á³ëê³â çà ðàõó- íîê íóêëåîô³ëüíèõ ðåàêö³é çàì³ùåííÿ ñóêöèí³- ì³äèëó àì³íîãðóïîþ á³ëêà [47]. ²íøå äîñë³äæåí- íÿ ïîêàçàëî, ùî êîí’þãîâàí³ ç ÏÅà ìîëåêóëè Ô²ÒÖ (³çîò³îö³àíàòó ôëóîðåñöå¿íó) ñâî¿ìè àðîìà- òè÷íèìè äîìåíàìè âñòóïàþòü ó π–π-ñòåê³íã- âçàºìîä³þ ç ïîâåðõíåþ ÂÍÒ. Óíàñë³äîê öüîãî óòâîðþþòüñÿ ôëóîðåñöåíòí³ êîìïëåêñè, ñïðî- ìîæí³ äèñïåðãóâàòèñÿ ó âîäíèõ ñåðåäîâèùàõ ³ ïðèäàòí³ äëÿ âèêîðèñòàííÿ ó á³îëîã³÷í³é äåòåêö³¿ òà â³çóàë³çàö³¿ [50]. Àìô³ô³ëüí³ ðå÷îâèíè òàêîæ ìîæíà çàñòîñî- âóâàòè äëÿ äèñïåðãóâàííÿ ÂÍÒ ó âîä³. óäðî- ôîáí³ äîìåíè öèõ ðå÷îâèí âçàºìîä³þòü ³ç ïî- âåðõíåþ ÂÍÒ âíàñë³äîê 䳿 ñèë Âàí-äåð-Âààëü- ñà òà ã³äðîôîáíèõ åôåêò³â, ó òîé ÷àñ ÿê ïîëÿðí³ ä³ëÿíêè ìîëåêóë çàáåçïå÷óþòü çäàòí³ñòü äèñ- ïåðãóâàòèñÿ ó âîä³ [51]. Âèêîðèñòîâóþòü òàê³ ñóðôàêòàíòè, ÿê äîäåöèëñóëüôàò íàòð³þ, áðîì³ä öåòèëòðèìåòèëàìîí³þ, «Òðèòîí», «Òâ³í» òà «Ïëþðîí³ê» (pluronic triblock copolymer) [52]. Ïîêðèòòÿ íà îñíîâ³ öèõ àìô³ô³ëüíèõ ðå÷îâèí ç â³äíîñíî âèñîêîþ êðèòè÷íîþ êîíöåíòðàö³ºþ ì³öåë çàçâè÷àé º íåñòàá³ëüíèìè áåç ïðèñóòíîñò³ íàäëèøêó ìîëåêóë ñóðôàêòàíòó â ðîç÷èí³. Çíà÷í³ æ êîíöåíòðàö³¿ ñóðôàêòàíòó ñïðè÷èíÿþòü ðóé- íóâàííÿ êë³òèííèõ ìåìáðàí ³ äåíàòóðàö³þ á³ëê³â. Öå ïåðåøêîäæàº âèêîðèñòàííþ ¿õ ó á³î- ëîã³÷íèõ îá’ºêòàõ. Çàãàëîì âàðòî çàçíà÷èòè, ùî äëÿ îïòèìàëü- íîãî íåêîâàëåíòíîãî ôóíêö³îíàë³çîâàíîãî ïî- êðèòòÿ ÂÍÒ â ðàç³ á³îëîã³÷íîãî çàñòîñóâàííÿ ìຠáóòè äîòðèìàíî òàêèõ âèìîã: – á³îëîã³÷íà ñóì³ñí³ñòü òà íåòîêñè÷í³ñòü ôóíêö³îíàë³çóâàëüíèõ ìîëåêóë; – íàÿâí³ñòü ó ôóíêö³îíàë³çóâàëüíèõ àãåíòàõ ôóíêö³îíàëüíèõ ãðóï, çäàòíèõ äî á³îêîí’- þãàö³¿ ç ìîëåêóëàìè, ÿê³ áåðóòü ó÷àñòü ó êîìïëåêñîóòâîðåíí³; – ñòàá³ëüí³ñòü ïîêðèòòÿ é ñò³éê³ñòü ùîäî â³ä’ºäíàííÿ á³îìîëåêóë â³ä ïîâåðõí³ ÂÍÒ ó á³îëîã³÷íèõ ðîç÷èíàõ, ÿê³ ÷àñòî ì³ñòÿòü âèñîê³ êîíöåíòðàö³¿ ñîëåé òà á³ëê³â. Öå îçíà÷àº, ùî àìô³ô³ëüí³ ïîâåðõíåâ³ ìîëå- êóëè ïîâèíí³ ìàòè äóæå íèçüêó êðèòè÷íó êîíöåíòðàö³þ ì³öåë, ùîá ïîêðèòòÿ ÂÍÒ çàëèøàëîñÿ ñòàá³ëüíèì ï³ñëÿ âèäàëåííÿ íàäëèøêó öèõ ìîëåêóë [34]. Ç ³íøîãî áîêó, ðîçãëÿäàþ÷è ïîâåä³íêó ÂÍÒ ó ïðèðîäíèõ ñèñòåìàõ, çóìîâëåíó ìîæëèâ³ñòþ âèíèêíåííÿ ñïåöèô³÷íèõ ïîâåðõíåâèõ âçàºìîä³é, âàðòî çàóâàæèòè òàêå. Ïðîâåäåí³ äîñë³äæåííÿ [53] äàþòü ï³äñòàâè ïðèïóñêàòè, ùî âèõ³äíó ã³äðî- ôîáí³ñòü ÂÍÒ ó ïðèðîäíîìó ñåðåäîâèù³, íàé³ìîâ³ðí³øå, ìîæíà óñóíóòè çà ðàõóíîê âçàº- ìî䳿 ÂÍÒ ç ïðèðîäíèìè îðãàí³÷íèìè ðå÷îâè- íàìè, ÿê³ º ãåòåðîãåííîþ ñóì³øøþ ðîñëèííèõ ³ òâàðèííèõ ðåøòîê [54]. Ñïîíòàííî ôóíêö³îíàë³- çîâàí³ òàêèì ÷èíîì ìîá³ëüí³ íàíîìàòåð³àëè, âî÷åâèäü, ìîæóòü áðàòè ó÷àñòü ó ð³çíîìàí³ò- íèõ ïðîöåñàõ ó íàâêîëèøíüîìó ñåðåäîâèù³ òà â æèâèõ îðãàí³çìàõ. Âçàºìîä³ÿ ÂÍÒ ç ÄÍÊ òà á³îìàêðîìîëåêóëàìè Ïîðÿä ³ç êëàñè÷íèìè ï³äõîäàìè äî ôóíêö³î- íàë³çàö³¿ ÂÍÒ ðîçðîáëåíî ìåòîäèêè íà îñíîâ³ ïðèºäíàííÿ á³îìîëåêóë. ª ïîâ³äîìëåííÿ ïðî âèêîðèñòàííÿ îäíîëàíöþãîâèõ ìîëåêóë ÄÍÊ äëÿ äèñïåðãóâàííÿ ÎØÂÍÒ ó âîä³ çàâäÿêè óòâîðåí- íþ êîìïëåêñ³â ÎØÂÍÒ ç ÄÍÊ [55, 56]. Òàêîæ ðîçðîáëåíî ìåòîä ôóíêö³îíàë³çàö³¿ îêèñíåíèõ ÎØÂÍÒ øëÿõîì ïðèºäíàííÿ ìîäèô³êîâàíèõ äî- äàâàííÿì ê³íöåâèõ àì³íîãðóï ìîëåêóë ÄÍÊ. Öåé ìåòîä äຠçìîãó îòðèìàòè ÎØÂÍÒ–ÄÍÊ-êîì- ïëåêñè, çäàòí³ äî äèñïåðãóâàííÿ ó âîä³ [57]. Îïèñàíî ñïîñ³á îòðèìàííÿ âîäíî-äèñïåðãîâàíèõ êîìïëåêñ³â ÎØÂÍÒ–ÄÍÊ çà äîïîìîãîþ îáðîá- êè âîäíî¿ ñóì³ø³ öèõ äâîõ êîìïîíåíò³â óëüòðà- çâóêîì [58]. Ìåõàí³çì ïðîöåñó çâ’ÿçóâàííÿ ÂÍÒ ç ÄÍÊ ïîÿñíþþòü π–π-ñòåê³íã-âçàºìî䳺þ ì³æ àçîòèñòèìè îñíîâàìè ÄÍÊ òà á³÷íèìè ñò³íêà- ìè ÎØÂÍÒ. Öå ñïðè÷èíÿº ñï³ðàëüíå îáãîðòàí- 88 Íàíîñòðóêòóðíîå ìàòåðèàëîâåäåíèå, 2011, ¹ 2 ÁÈÎÍÀÍÎÌÀÒÅÐÈÀËÛ íÿ ÄÍÊ íàâêîëî íàíîòðóáîê òàêèì ÷èíîì, ùî ã³äðîô³ëüí³ öóêðî-ôîñôàòí³ ãðóïè âèÿâëÿþòüñÿ îáåðíåíèìè â á³ê ðîç÷èíó. Óñòàíîâëåíî, ùî ìî- ëåêóëè ÄÍÊ íà ïîâåðõí³ ÎØÂÍÒ ìîæóòü ðîç- ùåïëþâàòèñÿ íóêëåàçàìè. Öå äຠï³äñòàâè ïðè- ïóñêàòè, ùî ôóíêö³îíàë³çàö³ÿ ÎØÂÍÒ çà äîïî- ìîãîþ ÄÍÊ ìîæå áóòè íåñòàá³ëüíîþ â á³îëî- ã³÷íèõ ñåðåäîâèùàõ, ÿê³ ì³ñòÿòü íóêëåàçè [59]. Ïðîòå ³íø³ äîñë³äæåííÿ, ïîâ’ÿçàí³ ç âèâ÷åííÿì ìîæëèâîñò³ ñòâîðåííÿ ÄÍÊ-çîíä³â íà îñíîâ³ ÂÍÒ, ñâ³ä÷àòü ïðî ïðîòèëåæíå. Âîíè äîâî- äÿòü, ùî çâ’ÿçóâàííÿ ö³ëüîâî¿ îäíîëàíöþãîâî¿ ÄÍÊ ï³äâèùóº ¿¿ ñò³éê³ñòü ùîäî ðîçùåïëåííÿ íóêëåàçàìè òà åôåêòèâí³ñòü äîñòàâêè ó êë³òèíó ïîð³âíÿíî ç ÄÍÊ, íå çâ’ÿçàíîþ ç ÂÍÒ [60]. Ç îãëÿäó íà çäàòí³ñòü îäíîëàíöþãîâî¿ òà äâî- ëàíöþãîâî¿ ÄÍÊ íåêîâàëåíòíî ïðèºäíóâàòèñÿ äî ïîâåðõí³ ÂÍÒ [5, 61, 62] äåòàëüíî âèâ÷àºòü- ñÿ ìîæëèâ³ñòü âèêîðèñòàííÿ òàêî¿ âçàºìî䳿 äëÿ çàñòîñóâàííÿ ó á³îòåõíîëî㳿. Ðîçðîáëåíî ìåòî- äè íåîáîðîòíîãî òà îáîðîòíîãî ñïîëó÷åííÿ ÄÍÊ ç ÂÍÒ çàëåæíî â³ä ìåòè çàñòîñóâàííÿ îòðèìà- íèõ êîìïëåêñ³â [63]. Òàê, äëÿ ³ììîá³ë³çàö³¿ ÄÍÊ íà ÂÍÒ ç ìåòîþ ñòâîðåííÿ ÄÍÊ-çîíä³â òà ³íøèõ íàíîêîíñòðóêö³é íà îñíîâ³ ÂÍÒ çàñòîñîâóþòü òî÷êîâå êîâàëåíòíå çâ’ÿçóâàííÿ. Âèêîðèñòàííÿ ³ììîá³ë³çîâàíèõ îë³ãîíóêëåîòèä³â ́ ðóíòóºòüñÿ íà çäàòíîñò³ ¿õ äî ã³áðèäèçàö³¿ ç êîìïëåìåíòàðíè- ìè ïîñë³äîâíîñòÿìè ÄÍÊ ó çðàçêó [64]. Ñòâî- ðåíî ìåòîäè êîâàëåíòíî¿ ôóíêö³îíàë³çàö³¿ ÁØÂÍÒ íóêëåîòèäàìè ÄÍÊ [65]. ª äàí³ ïðî îäåðæàííÿ ÎØÂÍÒ–ÄÍÊ-êîìïëåêñ³â óíàñë³- äîê êàðáîä³³ì³ä-îïîñåðåäêîâàíîãî ïðèºäíàííÿ ôóíêö³îíàë³çîâàíèõ îë³ãîíóêëåîòèä³â äî îêèñíå- íèõ ÎØÂÍÒ [66]. Ìîæíà çâ’ÿçóâàòè ÄÍÊ ÷å- ðåç ê³íöåâ³ àì³íîãðóïè ç êàðáîêñèëüíèìè ãðóïà- ìè ÂÍÒ, âèêîðèñòîâóþ÷è ðåàêö³¿ àì³äóâàííÿ. Òàêîæ ÄÍÊ ìîæå êîâàëåíòíî ïðèºäíàòèñÿ äî ÂÍÒ, íà ÿêèõ ãåíåðîâàíî òåðì³íàëüí³ àì³íî- ãðóïè [67]. Çàçíà÷åíîþ çäàòí³ñòþ ÂÍÒ óòâîðþâàòè êîì- ïëåêñè ç äâîëàíöþãîâîþ ïëàçì³äíîþ ÄÍÊ ìîæ- íà ñêîðèñòàòèñÿ ïðè ñòâîðåíí³ ïåðåíîñíèê³â íà îñíîâ³ ÂÍÒ äëÿ äîñòàâêè ãåí³â ó êë³òèíó [5]. ª ïîâ³äîìëåííÿ ïðî òå, ùî äåñòàá³ë³çàö³ÿ ÄÍÊ òà ¿¿ êîíôîðìàö³éí³ çì³íè, ³íäóêîâàí³ âçàºìî䳺þ ç ÎØÂÍÒ, çàëåæàòü â³ä òèïó îë³ãîíóêëåîòèä³â ó ïîë³íóêëåîòèäíîìó ëàíöþç³. Íàïðèêëàä, êî- ðîòê³ îë³ãîíóêëåîòèäè, ÿê³ ìàþòü ïîâòîðþâàí³ ïîñë³äîâíîñò³ ãóàí³íó é òèì³íó ((dGdT)n, äå n = 10–45), ìîæóòü ó âèãëÿä³ ñï³ðàë³ îáãîðòàòèñÿ íàâêîëî ÂÍÒ. Àô³íí³ñòü àçîòèñòèõ îñíîâ äî ïî- âåðõí³ ÂÍÒ çðîñòຠâ òàêîìó ïîðÿäêó: öèòîçèí- <òèì³í<àäåí³í<ãóàí³í [68, 69]. Íåêîâàëåíòíà ìîäèô³êàö³ÿ ÂÍÒ á³îìîëåêóëàìè Îêð³ì çäàòíîñò³ âèêîðèñòîâóâàòè áåçïîñå- ðåäíº çâ’ÿçóâàííÿ ÄÍÊ ç ïîâåðõíåþ ÂÍÒ äëÿ òðàíñïîðòóâàííÿ ÄÍÊ ó êë³òèíó, òàêîæ àêòèâíî âèâ÷àþòü ìîæëèâ³ñòü ïîïåðåäíüî¿ ôóíêö³îíàë³- çàö³¿ ÂÍÒ. Âîíà ïåðåäáà÷ຠïðèºäíàííÿ äî ÂÍÒ ïåâíèõ á³îìîëåêóë ³ç áàæàíèìè âëàñòèâîñòÿìè, ï³ñëÿ ÷îãî çà ðàõóíîê ì³æìîëåêóëÿðíèõ âçàº- ìîä³é ç óòâîðåíèìè êîìïëåêñàìè íåêîâàëåíòíî çâ’ÿçóºòüñÿ ÄÍÊ. Âàæëèâèé êëàñ á³îìîëåêóë ³ç âèñîêîþ àô³í- í³ñòþ ùîäî á³÷íèõ ñò³íîê ÂÍÒ ñòàíîâëÿòü á³ëêè. Ìîæíà ñêàçàòè, ùî öå ïðèðîäí³ ïîë³àìôîë³òè, ÿê³ ì³ñòÿòü ã³äðîô³ëüí³ òà ã³äðîôîáí³ äîìåíè. ¯õíÿ ã³äðîôîáí³ñòü çàëåæèòü â³ä ïîñë³äîâíîñò³ àì³íîêèñëîò ó ïîë³ïåïòèäíîìó ëàíöþç³ òà â³ä ðÍ ñåðåäîâèùà. Ó ðÿä³ äîñë³äæåíü ïîâ³äîìëåíî ïðî îïîñåðåäêîâàíå îáðîáêîþ óëüòðàçâóêîì ðîç’ºä- íàííÿ àãëîìåðàò³â ÂÍÒ é äèñïåðãóâàííÿ ã³áðèä³â ÂÍÒ ç á³ëêîì ó âîäíèõ ñåðåäîâèùàõ. Ñåðåä á³ëê³â, ùî âèêîðèñòîâóþòü äëÿ öüîãî, – ë³çîöèì [70], áè÷à÷èé ñèðîâàòêîâèé àëüáóì³í [71, 72], ã³äðîôîá³íè òà ñèíòåòè÷í³ îë³ãîïåïòèäè. Ïîì³æ îñòàíí³õ – îáîðîòíî-öèêë³÷í³ ïåïòèäè [73], ïåïòèäè íà îñíîâ³ ôåí³ëàëàí³íó [74], àìô³- ô³ëüí³ ñï³ðàëåïîä³áí³ ïåïòèäè [75, 76], ïåïòè- äè íà îñíîâ³ öèñòå¿íó [77], êðåìí³é-ïðåöèï³òó- âàëüí³ [78] òà ïîðô³ðèíîâ³ ïåïòèäè [79]. Âèâ÷åííÿ ìåõàí³çìó, çà äîïîìîãîþ ÿêîãî îáðîáêà óëüòðà- çâóêîì ïðèçâîäèòü äî äèñïåðãóâàííÿ ÂÍÒ ó âîä- íèõ ðîç÷èíàõ á³ëê³â, ïîêàçàëî, ùî àäñîðáîâàí³ íà ïîâåðõí³ á³÷íèõ ñò³íîê ÂÍÒ ìîëåêóëè á³ëêó ïåðåáóâàþòü ó ÷àñòêîâî ðîçãîðíóòîìó ñòàí³ ïî- ð³âíÿíî ç ¿õíüîþ íàòèâíîþ ñòðóêòóðîþ [71, 72]. Îòæå, ïðîöåñ äèñïåðãóâàííÿ ÂÍÒ çà äîïî- ìîãîþ âîäîðîç÷èííèõ á³ëê³â ïîâ’ÿçàíî ç ðîç- ãîðòàííÿì ìîëåêóë á³ëêà âíàñë³äîê òåïëîâî¿ 89 М АТ ЕР ИА ЛО ВЕ Д ЕН ИЕ Íàíîñòðóêòóðíîå ìàòåðèàëîâåäåíèå, 2011, ¹ 2 äåíàòóðàö³¿ òà ïîäàëüøèì îáîðîòíèì çãîðòàí- íÿì. Ó ðîç÷èíàõ ïàïà¿íó é ïåïñèíó ÂÍÒ íå äèñ- ïåðãóâàëèñÿ. Î÷åâèäíî, öå çóìîâëåíî íåçíà÷- íîþ ê³ëüê³ñòþ ã³äðîôîáíèõ äîìåí³â òà íåäî- ñòàòí³ì ïðîñòîðîâèì ðîçãîðòàííÿì ìîëåêóë. Ó âèïàäêó æ âèêîðèñòàííÿ ë³çîöèìó òà áè÷à÷îãî ñèðîâàòêîâîãî àëüáóì³íó îáðîáêà óëüòðàçâóêîì äàëà çìîãó îäåðæàòè âîäí³ ñèñòåìè äèñïåðãî- âàíèõ çà äîïîìîãîþ öèõ á³ëê³â ÂÍÒ. ²íøèé êëàñ á³îìîëåêóë, çäàòíèõ âçàºìîä³ÿòè ç ïîâåðõíåþ ÂÍÒ, – ïîë³ñàõàðèäè. ª ïîâ³äîì- ëåííÿ ïðî ñïðîìîæí³ñòü ïîõ³äíèõ õ³òîçàíó êîí’þ- ãóâàòè ç ÂÍÒ ç óòâîðåííÿì ñòàá³ëüíèõ ã³áðè- ä³â, ÿê³ åôåêòèâíî äèñïåðãóþòüñÿ ó âîäíèõ ñåðåäîâèùàõ [80, 81]. Âèÿâëåíî òàêîæ, ùî àëüã³íîâà êèñëîòà ìîæå åôåêòèâíî äèñïåðãóâà- òè ÁØÂÍÒ ó âîä³, ïðè÷îìó ï³ñëÿ äîäàâàííÿ ³îí³â ëóæíîçåìåëüíèõ òà âàæêèõ ìåòàë³â ³ ëàíòàíî¿ä³â îáãîðíóò³ àëüã³íîâîþ êèñëîòîþ ÂÍÒ ïðåöèï³òó- þòü. Ó ðîáîò³ [82] îïèñàíî äèñïåðãóâàííÿ ÎØÂÍÒ ó âîä³ çà äîïîìîãîþ ã³àëóðîíîâî¿ êèñ- ëîòè. Ðîçðîáëåíî ìåòîäèêó íåêîâàëåíòíî¿ ôóíê- ö³îíàë³çàö³¿ ÎØÂÍÒ ïåã³ëüîâàíèìè ôîñôîë³ï³- äàìè [36, 83]. Îñê³ëüêè ôîñôîë³ï³äè º îñíîâíèì êîìïîíåíòîì êë³òèííèõ ìåìáðàí, âîíè áåçïå÷í³ ùîäî çàñòîñóâàííÿ ó á³îëîã³÷íèõ ñèñòåìàõ. Âóãëåâîäíåâ³ ëàíöþãè ôîñôîë³ï³ä³â ì³öíî «ÿêî- ðÿòüñÿ» íà ïîâåðõí³ ÂÍÒ, à ã³äðîô³ëüí³ ëàíöþãè ÏÅà âèòÿãóþòüñÿ ó âîäí³é ôàç³, çàáåçïå÷óþ÷è ðîç÷èíí³ñòü ó âîä³ òà á³îëîã³÷íó ñóì³ñí³ñòü îá- ðîáëåíèõ ÂÍÒ. Ñóñïåíäîâàí³ òàêèì ÷èíîì ÎØÂÍÒ ñòàá³ëüí³ â ð³çíèõ á³îëîã³÷íèõ ðîç÷è- íàõ. Îñòàíí³ ðîáîòè ñòîñîâíî äîñë³äæåííÿ ìîæ- ëèâîñòåé âèêîðèñòàííÿ ïîõ³äíèõ ôîñôîë³ï³ä³â äëÿ ôóíêö³îíàë³çàö³¿ ÂÍÒ ñâ³ä÷àòü, ùî ë³çîãë³öåðî- ôîñôîë³ï³äè (ôîñôîë³ï³äè ç îäíèì «õâîñòèêîì») ³ç òåðì³íàëüíî ïðèºäíàíèìè êîðîòêèìè çàëèø- êàìè òðèìåòèëàìîí³þ çàáåçïå÷óþòü áåçïðåöå- äåíòíó çäàòí³ñòü ÎØÂÍÒ äèñïåðãóâàòèñÿ ó âîä³, òîä³ ÿê «äâîõâîñòèêîâ³» ãë³öåðîôîñôîë³ï³- äè äåìîíñòðóþòü íàáàãàòî íèæ÷ó åôåêòèâí³ñòü äèñïåðãóâàííÿ ÎØÂÍÒ [84, 85]. Ïàðàëåëüíî áóëî ðîçðîáëåíî àíàëîã³÷íèé ìåòîä ìîäèô³êàö³¿ ïîâåðõí³ êîðîòêèõ (çàâäîâæêè áëèçüêî 200 íì) ÎØÂÍÒ çà äîïîìîãîþ á³ëüø ïîëÿðíèõ «äâî- õâîñòèêîâèõ» ôîñôîë³ï³ä³â ³ç òåðì³íàëüíî ïðè- ºäíàíèìè ìîëåêóëàìè ÏÅà ÷è äåêñòðàíó [83, 86]. Ìîäèô³êîâàí³ òàêèì ÷èíîì ÂÍÒ áóëî âèêî- ðèñòàíî äëÿ îïîñåðåäêîâàíîãî åíäîöèòîçîì òðàíñïîðòó á³îìîëåêóë ó êë³òèíè. Ö³ òà ³íø³ ï³äõî- äè äî á³îëîã³÷íî¿ ôóíêö³îíàë³çàö³¿ íàíîòðóáîê çàñòîñîâóþòü ïðè ðîçðîáëåíí³ ìåòîä³â ñåëåê- òèâíî¿ äåñòðóêö³¿ êë³òèí ïóõëèí çà äîïîìîãîþ îïðîì³íåííÿ õâèëÿìè áëèçüêîãî ³íôðà÷åðâîíî- ãî ñïåêòðà [83], òðàíñïîðòó ÐÍÊ ïðè ãåíí³é òå- ðàﳿ [87], ðîçï³çíàâàííÿ ïóõëèííèõ êë³òèí [88], àäðåñíî¿ äîñòàâêè ìåäèêàìåíò³â [89] òà ôëóî- ðåñöåíòíîãî ì³÷åííÿ ïîâåðõíåâèõ êë³òèííèõ ðåöåïòîð³â ³ â³çóàë³çàö³¿ êë³òèí [90]. Îêð³ì òîãî, ¿õ ìîæå áóòè âèêîðèñòàíî ïðè ðîçðîáëåíí³ ìåòîä³â ãåíåòè÷íî¿ òðàíñôîðìàö³¿ êë³òèí çà äî- ïîìîãîþ ÂÍÒ. Îá´ðóíòîâàí³ñòü âèêîðèñòàííÿ ÂÍÒ äëÿ ðîçðîáëåííÿ íîâ³òí³õ ìåòîä³â ãåíåòè÷íî¿ òðàíñôîðìàö³¿ ðîñëèí Íàéïîøèðåí³øèìè íèí³ ìåòîäàìè ãåíåòè÷- íî¿ òðàíñôîðìàö³¿ ðîñëèí º àãðîáàêòåð³àëüíà òðàíñôîðìàö³ÿ ç âèêîðèñòàííÿì Agrobacterium tumefaciens òà A. rhizogenes, á³îáàë³ñòè÷íà òðàíñôîðìàö³ÿ, à òàêîæ åëåêòðîïîðàö³ÿ, ì³êðî- ³í’ºêö³ÿ òà äåÿê³ ³íø³. Àëå âèêîðèñòàííÿ áóäü- ÿêîãî ç çàçíà÷åíèõ ìåòîä³â ïîâ’ÿçàíî ç ïåâíèìè îáìåæåííÿìè. Öå ñïîíóêຠäî ðîçðîáëåííÿ íî- âèõ ìåòîä³â òðàíñôîðìàö³¿, çîêðåìà òàêèõ, ùî áàçóþòüñÿ íà çàñòîñóâàíí³ íàíîìàòåð³àë³â, à ñàìå ÂÍÒ [4, 52, 91, 92]. Òàêèì ÷èíîì ñòâî- ðþºòüñÿ ñïðèÿòëèâå ï³ä´ðóíòÿ äëÿ ôîðìóâàííÿ åôåêòèâíî¿ ñèñòåìè ãåíåòè÷íî¿ òðàíñôîðìàö³¿ çà äîïîìîãîþ ÂÍÒ, ùî ïîÿñíþºòüñÿ íèçêîþ îñîá- ëèâèõ âëàñòèâîñòåé öèõ ñòðóêòóð. Ïðî ö³ âëàñ- òèâîñò³ âæå áóëî çãàäàíî: öå íàíîðîçì³ð ïðè âå- ëèê³é ïëîù³ ïîâåðõí³, äî ÿêî¿ ìîæíà ïðèºäíóâà- òè ö³ëüîâ³ ìîëåêóëè (íàïðèêëàä, ÎØÂÍÒ òåîðåòè÷íî ìîæóòü ìàòè ïëîùó ïîâåðõí³ äî 1300 ì2/ã) [93, 94]; çäàòí³ñòü ïðîõîäèòè êð³çü ìåìáðàíó êë³òèí òà êë³òèííó ñò³íêó ðîñëèí [95]; ñïðîìîæí³ñòü íåêîâàëåíòíî âçàºìîä³ÿòè ç ÄÍÊ é çà ðàõóíîê π–π-ñòåê³íã-âçàºìîä³é çâ’ÿçóâàòè ¿¿ òà òðàíñïîðòóâàòè â êë³òèíó [3, 5, 62]. Ïîñò³éíî ïîïîâíþþòüñÿ äàí³ ïðî àäàïòàö³þ ÂÍÒ äëÿ ð³çíèõ ñôåð çàñòîñóâàííÿ â íàóêîâèõ äîñë³äæåííÿõ çà ðàõóíîê çì³íè ïîâåðõíåâèõ âëàñ- 90 Íàíîñòðóêòóðíîå ìàòåðèàëîâåäåíèå, 2011, ¹ 2 ÁÈÎÍÀÍÎÌÀÒÅÐÈÀËÛ òèâîñòåé öèõ íàíîñòðóêòóð. Íàêîïè÷åíî ìàñèâ çíàíü ùîäî ïåðñïåêòèâ, ìîæëèâîñòåé òà øëÿõ³â âèêîðèñòàííÿ ¿õ ó á³îòåõíîëîã³÷íèõ ðîçðîáêàõ. Îòðèìàíî ðåçóëüòàòè, ÿê³ åêñïåðèìåíòàëüíî ï³äòâåðäæóþòü òà îá´ðóíòîâóþòü âèêîðèñòàí- íÿ ÂÍÒ ó á³îòåõíîëî㳿, çîêðåìà â ãåíåòè÷í³é ³íæåíåð³¿. Âïëèâ ÂÍÒ íà æèâ³ îðãàí³çìè. Íèí³ ïðîâà- äÿòüñÿ ³íòåíñèâí³ äîñë³äæåííÿ âïëèâó ÂÍÒ íà ô³ç³îëîã³÷í³ ïðîöåñè â æèâèõ êë³òèíàõ, ïåðåâàæ- íî òâàðèí ³ ëþäèíè, òà îö³íþþòüñÿ òîêñè÷í³ñòü ³ ðèçèê âèêîðèñòàííÿ ¿õ. Óñòàíîâëåíî, ùî íåôóíê- ö³îíàë³çîâàí³ ÂÍÒ ìîæóòü áóòè òîêñè÷íèìè äëÿ êë³òèí. Òîìó òðèâàþòü äîñë³äæåííÿ, ñïðÿìîâàí³ íà âèçíà÷åííÿ óìîâ, ùî âïëèâàþòü íà ïðîÿâ òà âèðàæåí³ñòü òîêñè÷íèõ åôåêò³â óíàñë³äîê 䳿 ÂÍÒ íà êë³òèíè ð³çíèõ îðãàí³çì³â. ª â³äîìîñò³ ïðî òå, ùî ÎØÂÍÒ ïðèãí³÷óþòü ð³ñò êë³òèí HEK 293 (human embryonic kidney cells) [96] ³ ô³áðî- áëàñò³â ëþäèíè â êóëüòóð³ [97], à òàêîæ ñïðè÷è- íþþòü àïîïòîç åìáð³îíàëüíèõ ñòîâáóðîâèõ êë³òèí [98]. ²ñíóº ïðèïóùåííÿ, ùî òàê³ çì³íè ïî- â’ÿçàíî ç âèíèêíåííÿì îêñèäàòèâíîãî ñòðåñó, ïåðåêèñíèì îêèñíåííÿì ë³ï³ä³â ïëàçìàòè÷íèõ ìåìáðàí ³ç ïîäàëüøèì ðóéíóâàííÿì ¿õ [96, 97, 98]. ÁØÂÍÒ çäàòí³ òàêîæ âèÿâëÿòè öèòîòîê- ñè÷í³ñòü òà ãåíîòîêñè÷í³ñòü ³ ïðèçâîäèòè äî àïîïòîçó ô³áðîáëàñò³â ëþäèíè [99, 100] é Ò-ë³ìôîöèò³â [101]. Äåÿê³ äîñë³äæåííÿ îá´ðóíòî- âóþòü ïîä³áí³ñòü ðåàë³çàö³¿ ìåõàí³çì³â òîêñè÷- íîñò³ ÂÍÒ é àçáåñòó [102], â òîé ÷àñ ÿê ³íø³, ï³äòâåðäæóþ÷è íåãàòèâíèé âïëèâ ÂÍÒ íà êë³òè- íè ëåãåíü, ï³äêðåñëþþòü â³äì³ííîñò³ òîêñè÷íî- ãî âïëèâó öèõ ìàòåð³àë³â [103]. Íèçêà äîñë³- äæåíü ãîâîðèòü ïðî òîé ôàêò, ùî ôóíêö³îíàë³çî- âàí³ ÂÍÒ, çäàòí³ äèñïåðãóâàòèñÿ ó âîä³, ìàþòü ìåíøó öèòîòîêñè÷í³ñòü àáî æ º ö³ëêîì íåòîê- ñè÷íèìè [30, 104, 105]. Òàê, óñòàíîâëåíî, ùî ïåã³ëüîâàí³ ÎØÂÍÒ ìàéæå ïîâí³ñòþ âèâîäÿòü- ñÿ ç îñíîâíèõ îðãàí³â ìèøåé ïðîòÿãîì äâîõ ì³ñÿö³â çà â³äñóòíîñò³ ³ñòîòíèõ ïðîÿâ³â òîêñè÷- íîñò³ [106]. Ðåçóëüòàòè ³íøèõ äîñë³äæåíü âè- ÿâèëè á³îäåôóíêö³îíàë³çàö³þ ïåã³ëüîâàíèõ ÎØÂÍÒ ó ïå÷³íö³ ìèøåé ïðîòÿãîì ì³ñÿöÿ ï³ñëÿ ââåäåííÿ ¿õ [107], ùî ñïîíóêຠäî äåòàëüíîãî âèâ÷åííÿ âñ³õ ôàêòîð³â, ÿê³ âïëèâàþòü íà ïîâå- ä³íêó ÂÍÒ ó æèâîìó îðãàí³çì³. Ö³ òà ³íø³ äîñë³- äæåííÿ ñâ³ä÷àòü ïðî äîçî- òà ÷àñîçàëåæíèé õàðàêòåð âïëèâó ÂÍÒ íà æèâ³ êë³òèíè. Òàêîæ âåëèêó ðîëü ó ðåàë³çàö³¿ òîãî ÷è ³íøîãî åôåêòó ÿê ðåàêö³¿ íà ââåäåííÿ ÂÍÒ â³ä³ãðàþòü ïîâåðõ- íåâ³ õàðàêòåðèñòèêè ÂÍÒ, óìîâè ³íêóáàö³¿ òà åíäîãåíí³ ïðîöåñè â êë³òèíàõ îðãàí³çìó. Çàãàëîì ôóíêö³îíàë³çàö³ÿ ïîâåðõí³ ÂÍÒ íàäຠ¿ì çäàò- íîñò³ âêëþ÷àòèñÿ â ìåòàáîë³÷í³ ïðîöåñè â îðãàí³çì³ òà åë³ì³íóâàòèñÿ, òîä³ ÿê ³íåðòíà ïî- âåðõíÿ íåôóíêö³îíàë³çîâàíèõ ÂÍÒ, âî÷åâèäü, óñêëàäíþº öåé ïðîöåñ. Ç ³íøîãî áîêó, ôóíêö³î- íàë³çîâàí³ ÂÍÒ, éìîâ³ðíî, á³ëüø ìåòàáîë³÷íî àêòèâí³, é íåïåðåäáà÷óâàí³ñòü ö³º¿ àêòèâíîñò³ ñòâîðþº äîäàòêîâèé ðèçèê, íàòîì³ñòü íåôóíê- ö³îíàë³çîâàí³ ÂÍÒ ìîæóòü ðåàë³çóâàòè íåãàòèâ- íèé âïëèâ íà êë³òèíè ÷åðåç ô³çè÷í³ óøêîäæåííÿ. Òàêîæ òðåáà âðàõîâóâàòè àô³íí³ñòü áàãàòüîõ á³îìîëåêóë äî ïîâåðõí³ ÂÍÒ é çäàòí³ñòü ÷èñ- òèõ ÂÍÒ ìîäèô³êóâàòèñÿ ïðèºäíàííÿì öèõ ìî- ëåêóë ó á³îëîã³÷íèõ ñåðåäîâèùàõ. Âàðòî çàçíà÷èòè, ùî, ïîð³âíÿíî ç â³äîìîñòÿ- ìè ñòîñîâíî òâàðèí, º íå íàäòî áàãàòî äàíèõ ïðî âïëèâ íàíîìàòåð³àë³â, à ñàìå ÂÍÒ, íà ðîñ- ëèíè [108]. Áóëî âèÿâëåíî ÿê ïîçèòèâíèé, òàê ³ íåãàòèâíèé âïëèâ ð³çíèõ íàíî÷àñòèíîê íà æèò- òºä³ÿëüí³ñòü ðîñëèí íà ð³çíèõ åòàïàõ ¿õíüîãî ðîçâèòêó [109, 110]. Òîìó òðèâຠäîñë³äæåííÿ ìåõàí³çì³â ïîãëèíàííÿ, òðàíñëîêàö³¿, íàêîïè÷åí- íÿ òà ïåðåäàâàííÿ íàíîìàòåð³àë³â ó ðîñëèííèõ êë³òèíàõ ³ òêàíèíàõ, à òàêîæ âïëèâó íà ðåïðî- äóêö³þ ðîñëèí [111, 112]. Çîêðåìà ïîâ³äîìëÿþòü, ùî ðîñëèíè ðèñó, ³íêóáîâàí³ ³ç ñóñïåí糺þ ÁØÂÍÒ, ôóíêö³îíàë³çîâàíèõ çà ðàõóíîê ïðè- ºäíàííÿ ïðèðîäíèõ îðãàí³÷íèõ ðå÷îâèí, çàöâ³òà- ëè íà ì³ñÿöü ï³çí³øå, àí³æ êîíòðîëüí³, à ð³âåíü ïðîäóêö³¿ íàñ³ííÿ ïàäàâ íà 10,5%, çìåíøóâà- ëàñÿ é ñåðåäíÿ âàãà íàñ³íèí [53]. Àâòîðè âèñëîâëþþòü ïðèïóùåííÿ, ùî âèñîê³ êîíöåíò- ðàö³¿ ÁØÂÍÒ ìîæóòü áëîêóâàòè íîðìàëüíó ä³ÿëüí³ñòü êîðåí³â ðîñëèí íà ð³âí³ êîðåíåâèõ âî- ëîñê³â, íà ïîâåðõí³ ÿêèõ àäñîðáóþòüñÿ íàíî- òðóáêè. Ðåçóëüòàòè äîñë³äæåííÿ âïëèâó ÎØÂÍÒ íà ïðîòîïëàñòè êë³òèí ëèñòÿ àðàá³äîïñèñó é ðèñó çà äîïîìîãîþ ìåòîäó EM-TUNEL (electron- microscopic terminal deoxynucleotidyl transferase- mediated dUTP nick end-labeling) ñâ³ä÷àòü ïðî òå, 91 М АТ ЕР ИА ЛО ВЕ Д ЕН ИЕ Íàíîñòðóêòóðíîå ìàòåðèàëîâåäåíèå, 2011, ¹ 2 ùî ÎØÂÍÒ ³íäóêóþòü îáîðîòíó êë³òèííó â³äïîâ³äü, çîêðåìà àãðåãàö³þ êë³òèí, êîíäåíñà- ö³þ õðîìàòèíó ç TUNEL-ïîçèòèâíîþ ðåàêö³ºþ, çì³ùåííÿ ïëàçìàòè÷íî¿ ìåìáðàíè òà íàêîïè÷åí- íÿ Í2Î2 [113]. гâåíü âèæèâàííÿ êë³òèí áóâ äîçîçàëåæíèì; òàê, êîíöåíòðàö³ÿ ÂÍÒ 25 ìêã/ìë ñïðè÷èíÿëà çàãèáåëü 25% êë³òèí ïðîòÿãîì 6 ãîä, òîä³ ÿê àêòèâîâàíå âóã³ëëÿ, ÿêå íå íàëåæèòü äî ãðóïè íàíîìàòåð³àë³â, íå ³íäóêóâàëî çàãèáåëü íàâ³òü ÷åðåç 24 ãîä. Ö³ äàí³ ñâ³ä÷àòü ïðî òå, ùî íàíîðîçì³ð ÷àñòèíîê ìîæå áóòè êðèòè÷íèì ôàê- òîðîì òîêñè÷íîñò³. ²ìîâ³ðíî, ÎØÂÍÒ ÷èíÿòü íåãàòèâíèé âïëèâ íà ïðîòîïëàñòè, ³íäóêóþ÷è îêñèäàòèâíèé ñòðåñ.  ³íøîìó äîñë³äæåíí³ âçàºìî䳿 âèñîêîî÷è- ùåíèõ ÎØÂÍÒ ³ç êë³òèíàìè àðàá³äîïñèñó ïî- êàçàíî, ùî ì³÷åí³ Ô²ÒÖ (ôëóîðåñöå¿í³çîò³îö³à- íàòîì) ÂÍÒ ïðîõîäèëè êð³çü êë³òèííó ñò³íêó ëèñòÿ ìåçîô³ëó, ¿õ áóëî âèÿâëåíî ó öèòîïëàçì³, ë³çîñîìàõ, ì³òîõîíäð³ÿõ, ÿäð³, õëîðîïëàñòàõ, âà- êóîëÿõ [114]. ÎØÂÍÒ ó êîíöåíòðàö³¿ 50 ìêã/ìë òà âèùå ñóòòºâî âïëèâàëè íà ìîðôîëîã³þ ïðî- òîïëàñò³â ìåçîô³ëó àðàá³äîïñèñó é ìàëè âèñîêó öèòîòîêñè÷í³ñòü. Àïîïòîç âèíèêàâ ó 70% êë³òèí ï³ñëÿ 48 ãîä ³íêóáàö³¿, òèì÷àñîì ÿê ìåíø³ äîçè ñòèìóëþâàëè âèæèâàííÿ é ðîçâèòîê ïðîòî- ïëàñò³â. Áóëî çàô³êñîâàíî äîçî- òà ÷àñîçàëåæ- íå íàêîïè÷åííÿ ðåàêòèâíèõ ôîðì êèñíþ ó êë³òè- íàõ. Ìîæíà ïðèïóñòèòè, ùî ÂÍÒ ó ì³òîõîíäð³- ÿõ ïîðóøóþòü åíåðãåòè÷íèé ìåòàáîë³çì ðîñ- ëèííî¿ êë³òèíè, ó õëîðîïëàñòàõ – çì³íþþòü ïðî- õîäæåííÿ ôîòîñèíòåòè÷íèõ ðåàêö³é, ó ÿäð³ – ñïðè÷èíþþòü ðîçëàä éîãî íîðìàëüíîãî ôóíêö³- îíóâàííÿ. Ìåõàí³çìè òîêñè÷íî¿ ä³¿ ÂÍÒ çàãàëîì ïîâ’ÿçóþòü ³ç ãåíåðóâàííÿì îêñèäàòèâíîãî ñòðå- ñó, òîêñè÷í³ñòþ íàÿâíèõ çàëèøê³â ìåòàë³â-êà- òàë³çàòîð³â ³ ô³çè÷íèì óøêîäæåííÿì – ðîçðèâîì ìåìáðàí [99, 115]. Âîäíî÷àñ º ïîâ³äîìëåííÿ, ùî ³íêóáóâàííÿ íà- ñ³ííÿ òîìàò³â ³ç ÁØÂÍÒ ï³äâèùóº ÷àñòîòó ïðî- ðîñòàííÿ òà ïðèñêîðþº ð³ñò ïðîðîñòê³â [108]. Çâè- ÷àéíå íàñ³ííÿ ìàëî ïîêàçíèêè ïðîðîñòàííÿ 32% íà 12-é äåíü ³ 71% íà 20-é, òîä³ ÿê îáðîáëåíå ÂÍÒ – 74–82% òà 90% â³äïîâ³äíî. Çà ÷îòèðè òèæí³ ðîñëèíè ç åêñïåðèìåíòàëüíî¿ ãðóïè ñòàëè âäâ³÷³ âèùèìè çà êîíòðîëüí³. Âàãà ñèðî¿ âåãåòà- òèâíî¿ á³îìàñè ðîñëèí, íàñ³ííÿ ÿêèõ ïðîðîùóâà- ëè íà ñåðåäîâèù³ ç ÂÍÒ, áóëà â 2,5 ðàçà á³ëüøîþ ïîð³âíÿíî ç òàêèì ñàìèì ïîêàçíèêîì äëÿ ðîñ- ëèí, ùî ïðîðîùóâàëè íà çâè÷àéíîìó ñåðåäîâèù³. Âèÿâëåíèé ïîçèòèâíèé âïëèâ ÂÍÒ íà ð³ñò ³ ðîç- âèòîê ðîñëèí òîìàò³â ïîâ’ÿçóþòü ³ç âïëèâîì ¿õ íà ïîãëèíàííÿ âîëîãè íàñ³ííÿì. Ìåõàí³çì 䳿 ÂÍÒ ïðè öüîìó ïîÿñíþºòüñÿ ñòâîðåííÿì íàíîòðóáêà- ìè íîâèõ ïîð â îáîëîíö³ íàñ³íèíè ïðè ïðîíèêíåíí³ êð³çü íå¿. Óñòàíîâëåíî, ùî ÷åðåç äâà äí³ ï³ñëÿ ïî÷àòêó ïðîðîùóâàííÿ íà ñåðåäîâèù³ âì³ñò âî- ëîãè ó êîíòðîëüíîìó íàñ³íí³ ñòàíîâèâ 38,9%, à â íàñ³íí³, ³íêóáîâàíîìó ç ÂÍÒ, – 57,6%, ó òîé ÷àñ ÿê âèõ³äíèé ïîêàçíèê âì³ñòó âîëîãè â îáîõ ãðó- ïàõ íàñ³ííÿ ñòàíîâèâ 18,4%. Ðåçóëüòàòè ñïåêò- ðîñêîﳿ Ðàìàíà é àíàë³ç çà äîïîìîãîþ òðàíñ- ì³ñ³éíî¿ åëåêòðîííî¿ ì³êðîñêîﳿ ãîâîðÿòü ïðî ïðè- ñóòí³ñòü ÂÍÒ âñåðåäèí³ íàñ³íèí, ³íêóáîâàíèõ ³ç ÂÍÒ. Öå ñâ³ä÷èòü íà êîðèñòü ã³ïîòåçè ïðî ïðî- íèêíåííÿ ÂÍÒ â íàñ³íèíó ç ôîðìóâàííÿì ïîð ó ¿¿ îáîëîíö³. Òàêîæ ïðèïóñêàºòüñÿ, ùî ÂÍÒ çäàòí³ ðåãóëþâàòè ðîáîòó íàÿâíèõ âîäíèõ êàíàë³â (àê- âàïîðèí³â), îñê³ëüêè º ïîâ³äîìëåííÿ, ùî àê- òèâí³ñòü âîäíèõ êàíàë³â ìîæíà ìîäèô³êóâàòè øëÿõîì ñòðåñ³â ð³çíîãî òèïó, çîêðåìà âèñîêîãî îñìîòè÷íîãî òèñêó, àíîêñ³¿, ïðèñóòíîñò³ âàæêèõ ìåòàë³â, çì³íè ðÍ , çàñîëåííÿ òîùî [116]. Çóñòð³- ÷àþòüñÿ ïîâ³äîìëåííÿ, ùî ÂÍÒ ïðèãí³÷óþòü åëîíãàö³þ êîð³ííÿ â òîìàò³â òà ïîñèëþþòü åëîí- ãàö³þ êîð³ííÿ â öèáóë³ é îã³ðêà [117]. Äèñïåðãîâàí³ ó âîä³ ÂÍÒ ïîë³ïøóâàëè ð³ñò êîð³ííÿ, ïàãîí³â, à òàêîæ ãàëóæåííÿ ðîñëèí íóòó (Cicer arietinum L.) [112]. ²íêóáîâàí³ ç ÂÍÒ ðîñ- ëèíè â³äð³çíÿëèñÿ â³ä êîíòðîëüíèõ ïîñèëåíèì ïîãëèíàííÿì âîäè, ùî äàëî ï³äñòàâó ïðèïóñòè- òè âèçíà÷àëüíó ðîëü öüîãî ÷èííèêà äëÿ ïî- ë³ïøåííÿ ðîñòó ðîñëèí. Ìåõàí³çì 䳿 â òàêîìó ðàç³ ïîÿñíþþòü ìîæëèâèì âêëþ÷åííÿì ÂÍÒ ÷åðåç êîð³ííÿ â ñóäèííó ñèñòåìó ðîñëèí ³ ôîðìóâàííÿ äîäàòêîâî¿ êàï³ëÿðíî¿ ñèñòåìè, ÿêà ïðèñêîðþº íàäõîäæåííÿ êñèëåìîþ âîäè òà ðîç÷èííèõ ñî- ëåé ó òêàíèíè ðîñëèí. Ðåçóëüòàòè ö³º¿ ðîáîòè ³ëþñò- ðóþòü â³äñóòí³ñòü ïðîÿâ³â òîêñè÷íîñò³ äèñïåð- ãîâàíèõ ó âîä³ ÂÍÒ â ðîñëèí ³ äàþòü ï³äñòàâó âèâ÷àòè ìîæëèâîñò³ âèêîðèñòàííÿ íàíîìàòå- ð³àë³â äëÿ ïîñèëåííÿ ðîñòó ðîñëèí. Çàãàëîì åêñïåðèìåíòàëüí³ äàí³ ñâ³ä÷àòü ïðî òå, ùî õàðàêòåð âïëèâó íàíîìàòåð³àë³â íà ð³ñò ³ 92 Íàíîñòðóêòóðíîå ìàòåðèàëîâåäåíèå, 2011, ¹ 2 ÁÈÎÍÀÍÎÌÀÒÅÐÈÀËÛ ðîçâèòîê ðîñëèí çàëåæèòü â³ä òèïó âèêîðèñòà- íèõ íàíî÷àñòèíîê, ¿õíüî¿ êîíöåíòðàö³¿, âèäó ðîñ- ëèíè òà îñîáëèâèõ óìîâ åêñïîçèö³¿. Äåÿê³ àâòî- ðè òàêîæ çàçíà÷àþòü âàæëèâó ðîëü ðîçì³ðó é ïîâåðõíåâèõ õàðàêòåðèñòèê íàíî÷àñòèíîê ÿê ôàêòîð³â, ùî ìîæóòü ñïðè÷èíÿòè ô³òîòîê- ñè÷í³ñòü [118]. Ïðîíèêíåííÿ ÂÍÒ ó êë³òèíè. ×åðåç îñîá- ëèâîñò³ áóäîâè òà ñïåöèô³÷í³ ïîâåðõíåâ³ âëàñ- òèâîñò³ ÂÍÒ ìîæóòü ïðîíèêàòè êð³çü á³îëîã³÷í³ áàð’ºðè â êë³òèíàõ ññàâö³â [119], ðîñëèí [95] òà ì³êðîîðãàí³çì³â [120]. Ìåõàí³çì ïîãëèíàííÿ êë³òèíîþ ÂÍÒ, à òàêîæ ¿õíþ ïîâåä³íêó â êë³òèí³ äîñ³ äåòàëüíî íå âèâ÷åíî, à îäåðæàí³ ï³ä ÷àñ ð³çíèõ äîñë³äæåíü ðåçóëüòàòè ñòâîðþþòü ñóïå- ðå÷ëèâó êàðòèíó ñòîñîâíî ðîçóì³ííÿ öüîãî ïè- òàííÿ [121, 122]. Ïîøèðåíèì º òîé ïîãëÿä, ùî ÂÍÒ ïîãëèíàþòüñÿ êë³òèíàìè øëÿõîì êëàòðèí- çàëåæíîãî åíäîöèòîçó [6]. Áóëî ïîêàçàíî, ùî ÎØÂÍÒ, âêðèò³ á³ëêîì ÷è ÄÍÊ, ïðîíèêàþòü ó êë³òèíó çà ðàõóíîê åíåðãåòè÷íî çàëåæíèõ ïðî- öåñ³â [122]. Âîäíîðàç º äàí³, ùî ÂÍÒ ìîæóòü ïðîíèêàòè ó êë³òèíó åíåðãåòè÷íî íåçàëåæíèì øëÿõîì, à ìåõàí³çì ïðîíèêíåííÿ âèçíà÷àºòüñÿ ïîâåðõíåâèìè õàðàêòåðèñòèêàìè ¿õ [123, 124]. Ùîäî ñóáêë³òèííî¿ ëîêàë³çàö³¿ ÂÍÒ, òî îäí³ àâ- òîðè îïèñóþòü âõîäæåííÿ íàíîòðóáîê ó êë³òèíó áåç ïðîíèêíåííÿ â ÿäðî [125], òîä³ ÿê ï³ä ÷àñ ³íøèõ äîñë³äæåíü áóëî çàô³êñîâàíî ôàêòè îáî- ðîòíîãî ïðîíèêíåííÿ ÎØÂÍÒ â ÿäðî [114, 121, 124]. ÂÍÒ òàêîæ âèÿâëÿþòüñÿ ó öèòîïëàçì³, åíäîñîìàõ, ë³çîñîìàõ, âàêóîëÿõ, ì³òîõîíäð³ÿõ, ïëàñòèäàõ [114, 121, 126]. ³äïîâ³äíî äî îäí³º¿ ç åêñïåðèìåíòàëüíî îá´ðóíòîâàíèõ ìîäåëåé (íà ïðèêëàä³ åï³òåë³àëüíèõ êë³òèí íèðêè ëþäñüêîãî åìáð³îíà), ÁØÂÍÒ ïðîíèêàþòü ó êë³òèíó çà ðàõóíîê ðåàë³çàö³¿ äâîõ ð³çíèõ ìåõàí³çì³â. Ïî- îäèíîê³ ÁØÂÍÒ ïðÿìî ïðîõîäÿòü êð³çü ìåìá- ðàíó êë³òèíè, ïðè öüîìó êîðîòø³ ÂÍÒ ÷àñò³øå, àí³æ äîâã³, ïðîíèêàþòü êð³çü ïëàçìàòè÷íó ìåì- áðàíó. Íàòîì³ñòü êëàñòåðè (ïó÷êè) ÁØÂÍÒ êë³òèíà çàõîïëþº ó ïðîöåñ³ åíäîöèòîçó. Ïó÷êè ÂÍÒ â åíäîñîìàõ â³äîêðåìëþþòü ïîîäèíîê³ ÂÍÒ, ÿê³ ïðîõîäÿòü ó öèòîïëàçìó êð³çü ìåìáðà- íó åíäîñîìè. Çãîäîì óñ³ ÂÍÒ â êë³òèí³ çáèðà- þòüñÿ ó ë³çîñîìàõ òà åêñêðåòóþòüñÿ. ϳäêðåñ- ëåíî, ùî çâ’ÿçóâàííÿ ç á³ëêàìè á³îëîã³÷íèõ ñå- ðåäîâèù ìîæå ñóòòºâî çì³íþâàòè ïîâåðõíåâ³ õàðàêòåðèñòèêè ÂÍÒ in vivo [124]. Ïðè äîñë³äæåíí³ ìåõàí³çìó òðàíñëîêàö³¿ ÎØÂÍÒ ð³çíîãî ä³àìåòðà êð³çü ìåìáðàíó êë³òè- íè øëÿõîì ñïîíòàííîãî ïðîêîëþâàííÿ (ïåðïåí- äèêóëÿðíî¿ âñòàâêè), ³íäóêîâàíîãî ëèøå òåïëî- âèì ðóõîì, áóëî îá÷èñëåíî ê³ëüê³ñòü åíåð㳿, ÿêà ïîòð³áíà äëÿ âñòàâêè ÂÍÒ ó ìîäåëüíèé ôîñôî- ë³ï³äíèé äâîøàð [127]. Âèÿâèëîñÿ, ùî åíåðã³ÿ ðîçðèâó ôîñôîë³ï³äíîãî äâîøàðó íàáàãàòî âèùà çà åíåðã³þ òåïëîâîãî ðóõó ÂÍÒ. Äî òîãî æ ïðî- õîäæåííÿ êð³çü ìåìáðàíó ï³ä ïðÿìèì êóòîì ïîòðåáóº ìåíøî¿ åíåð㳿, àí³æ ï³ä ³íøèì. Ñïîð³ä- íåí³ñòü ã³äðîôîáíèõ ÂÍÒ äî ã³äðîôîáíîãî âíóòð³øíüîãî ïðîøàðêó ìåìáðàíè ìຠòàêîæ ãàëüìóâàòè ïðîíèêíåííÿ ÂÍÒ ó êë³òèíó é óñê- ëàäíþâàòè ïðîõîäæåííÿ ÂÍÒ êð³çü ìåìáðàíè. Òàê³ ðåçóëüòàòè ìîæóòü íåïðÿìî ñâ³ä÷èòè íà êî- ðèñòü òîãî, ùî ïðîõîäæåííÿ ÂÍÒ ó êë³òèíó â³äáóâàºòüñÿ çà ðàõóíîê åíåðãåòè÷íî çàëåæíèõ ïðîöåñ³â, çîêðåìà åíäîöèòîçó. Äîêàçè îïîñåðåäêîâàíîãî åíäîöèòîçîì ïðî- íèêíåííÿ êîìïëåêñ³â ÂÍÒ ç á³îìîëåêóëàìè ó êë³òèíè îäåðæàíî â äîñë³äàõ íà òþòþí³ [95]. Îäíàê ðåçóëüòàòè ³íøèõ äîñë³äæåíü äàëè çìî- ãó âèÿâèòè, ùî ì³÷åí³ Ô²ÒÖ ÁØÂÍÒ ïðîíèêà- þòü ó ïðîòîïëàñòè áàðâ³íêó (Catharanthus roseus L.) çäåá³ëüøîãî çà ðàõóíîê âñòàâêè/äè- ôó糿 ÷åðåç ïëàçìàòè÷íó ìåìáðàíó. Íàáàãàòî ìåíøå ÂÍÒ ïîòðàïëÿþòü ó êë³òèíó øëÿõîì åí- äîöèòîçó [128]. Íåçíà÷íó ðîëü åíäîöèòîçó â öüîìó ðàç³ áóëî ï³äòâåðäæåíî çàâäÿêè âèâ÷åí- íþ êîëîêàë³çàö³¿ ñèãíàë³â Ô²ÒÖ òà áàðâíèêà FM4-64, ùî º ìàðêåðîì åíäîöèòîçó, îñê³ëüêè âêëþ÷àºòüñÿ ëèøå ó çîâí³øí³é øàð êë³òèííî¿ ïëàçìàòè÷íî¿ ìåìáðàíè. Çíèæåííÿ òåìïåðàòó- ðè òàêîæ ï³äòâåðäèëî â³äñóòí³ñòü çâ’ÿçêó ì³æ ³íòåíñèâí³ñòþ åíäîöèòîçó é ³íòåíñèâí³ñòþ âíóò- ð³øíüîêë³òèííîãî ñèãíàëó â³ä ÂÍÒ–Ô²ÒÖ. Òà- êîæ óñòàíîâëåíî, ùî çá³ëüøåííÿ êîíöåíòðàö³¿ ÂÍÒ-Ô²ÒÖ ïðèçâåëî äî ïðèãí³÷åííÿ åíäîöèòî- çó âíàñë³äîê çá³ëüøåííÿ òîí³÷íîñò³ ñåðåäîâèùà. Ïðè öüîìó, éìîâ³ðíî, àãðåãàòè ÂÍÒ ó çîâí³øíüî- ìó ñåðåäîâèù³ íåçäàòí³ ïðîíèêàòè ó êë³òèíó áåçïîñåðåäíüî êð³çü ìåìáðàíó, òîìó, çàëèøàþ- ÷èñü ³ççîâí³, âîíè ï³äâèùóþòü òîí³÷í³ñòü ñåðå- äîâèùà, ùî, ñâîºþ ÷åðãîþ, ³íã³áóº ïðîöåñè åí- 93 М АТ ЕР ИА ЛО ВЕ Д ЕН ИЕ Íàíîñòðóêòóðíîå ìàòåðèàëîâåäåíèå, 2011, ¹ 2 äîöèòîçó. Íàòîì³ñòü îêðåì³ ÂÍÒ ïðîõîäÿòü êð³çü êë³òèííó ìåìáðàíó, óíèêàþ÷è åíäîöèòîç- íîãî öèêëó, íàêîïè÷óþòüñÿ â öèòîïëàçì³ òà ì³ãðóþòü â îðãàíåëè. Öå ñòâîðþº ï³ä´ðóíòÿ äëÿ âèêîðèñòàííÿ ÂÍÒ ÿê òðàíñïîðòåð³â ö³ëüîâèõ ìîëåêóë ó ðîñëèíí³ êë³òèíè, îñê³ëüêè óíèêíåííÿ åíäîöèòîçíîãî öèêëó òà áåçïîñåðåäíº ïðîíèê- íåííÿ â öèòîïëàçìó äàñòü çìîãó çàõèñòèòè ìî- ëåêóëÿðíèé «âàíòàæ» ÂÍÒ â³ä 䳿 ôåðìåíò³â. Óñåðåäèí³ êë³òèíè ÂÍÒ ïðîíèêàëè â óñ³ îðãàíå- ëè, çîêðåìà ñïîñòåð³ãàëèñÿ ó ïëàñòèäàõ, âàêóî- ëÿõ, ÿäð³. Äîâø³ ÂÍÒ âèÿâëÿëè ïåðåâàæíî ó öè- òîïëàçì³, åíäîïëàçìàòè÷íîìó ðåòèêóëóì³, ì³òî- õîíäð³ÿõ. Êîðîòê³ ÂÍÒ (ìåíø â³ä 100 íì) êðàùå äèôóíäóâàëè êð³çü êë³òèííó ìåìáðàíó é òÿæ³ëè äî íàêîïè÷åííÿ â ÿäð³, ïëàñòèäàõ, âàêóîëÿõ, ùî çãîäîì ìîæå áóòè âèêîðèñòàíî äëÿ àäðåñíî¿ äîñòàâêè ïåâíèõ ìîëåêóë äî öèõ ñòðóêòóð. Ó äîñë³äæåíí³ [114] áóëî âñòàíîâëåíî, ùî ï³ñëÿ ïðîíèêíåííÿ ó ïðîòîïëàñòè àðàá³äîïñèñó ÎØÂÍÒ ëîêàë³çóâàëèñÿ â ë³çîñîìàõ, ïîò³ì ïðî- íèêàëè â öèòîïëàçìó òà ÿäðî. Âèâ÷åííÿ ³íòåí- ñèâíîñò³ ôëóîðåñöåíòíîãî ñèãíàëó â³ä Ô²ÒÖ ïðè âèòðèìóâàíí³ åêñïåðèìåíòàëüíèõ çðàçê³â ó ð³çíèõ òåìïåðàòóðíèõ ðåæèìàõ òàêîæ äàëî çìî- ãó ä³éòè âèñíîâêó ïðî â³äñóòí³ñòü òåìïåðàòóð- íî¿ çàëåæíîñò³ ³íòåíñèâíîñò³ ïðîíèêíåííÿ ó êë³òè- íè êîí’þãàò³â Ô²ÒÖ–ÎØÂÍÒ. Öå ï³äòâåðäæóº ïðèïóùåííÿ ïðî òå, ùî öüîãî ðàçó â³äáóëîñÿ åíåðãåòè÷íî íåçàëåæíå ïîãëèíàííÿ ÂÍÒ ðîñëèí- íèìè êë³òèíàìè. Òàêèì ÷èíîì, ïèòàííÿ ùîäî ìåõàí³çì³â ïðî- íèêíåííÿ ÂÍÒ ó êë³òèíè ïîòðåáóº äàëüøîãî äî- ñë³äæåííÿ. ²ìîâ³ðíî, íåîäíàêîâ³ óìîâè ó êë³òèí³ òà âëàñòèâîñò³ ñàìèõ êîìïëåêñ³â ÂÍÒ–á³îìî- ëåêóëà ïðèçâîäÿòü äî òîãî, ùî â³äáóâàþòüñÿ ð³çí³ ïðîöåñè, âíàñë³äîê ÿêèõ ÂÍÒ âèÿâëÿþòüñÿ ³íòåðíàë³çîâàí³ êë³òèíàìè. Ãåíåòè÷íà òðàíñôîðìàö³ÿ êë³òèí çà äî- ïîìîãîþ ÂÍÒ. ª äàí³ ïðî óñï³øíå ïðîâåäåííÿ ãåíåòè÷íî¿ òðàíñôîðìàö³¿ êë³òèí áàêòåð³é ³ òâà- ðèí ³ç âèêîðèñòàííÿì ÂÍÒ. Îïèñàíî çîêðåìà ñòâîðåííÿ ñèñòåìè äîñòàâêè ïëàçì³ä ó áàêòå- ð³àëüí³ êë³òèíè Escherichia coli ç âèêîðèñòàííÿì ôóíêö³îíàë³çîâàíèõ îáðîáêîþ êèñëîòàìè ÂÍÒ ï³ä 䳺þ ì³êðîõâèëüîâèõ ³ìïóëüñ³â [129]. Öåé ï³äõ³ä ðîçðîáëåíî íà îñíîâ³ ìîäèô³êàö³¿ êëàñè÷- íî¿ ìåòîäèêè åëåêòðîïîðàö³¿. Äèñïåðãîâàí³ ó âîä³ êîìïëåêñè ÂÍÒ ç ïëàçì³äíîþ ÄÍÊ çà ðàõóíîê åëåêòðîñòàòè÷íî¿ âçàºìî䳿 ñïî÷àòêó àäñîðáó- þòüñÿ íà ïîâåðõí³ áàêòåð³àëüíèõ êë³òèí. Äàë³ ï³ä âïëèâîì ì³êðîõâèëüîâîãî åëåêòðîìàãí³òíîãî ïóëüñóþ÷îãî ïîëÿ â³äáóâàºòüñÿ ïðîíèêíåííÿ êîìïëåêñ³â äî êë³òèí ÷åðåç òèì÷àñîâ³ íàíîêà- íàëè, ùî ïîÿñíåíî çäàòí³ñòþ ôóíêö³îíàë³çîâà- íèõ ÂÍÒ ñëóãóâàòè òèì÷àñîâèìè äèïîëÿìè. ª òàêîæ ïîâ³äîìëåííÿ ïðî óñï³øíó òðàíñôîð- ìàö³þ êë³òèí ññàâö³â çà äîïîìîãîþ ÂÍÒ, ÿê³ áóëè ôóíêö³îíàë³çîâàíî îêèñíåííÿì ³ ïðèºäíàííÿì àì³íîãðóï [130]. Äî ðå÷³, â öüîìó äîñë³äæåíí³ çàçíà÷åíî, ùî ôóíêö³îíàë³çîâàí³ ÂÍÒ âèÿâëÿþòü íàáàãàòî íèæ÷èé ð³âåíü öèòîòîêñè÷íîñò³, àí³æ ðÿä êîìåðö³éíèõ òðàíñôîðìóâàëüíèõ àãåíò³â. Äëÿ çâ’ÿçóâàííÿ é òðàíñïîðòó ïëàçì³äíî¿ ÄÍÊ ó êë³òèíè àäåíîêàðöèíîìè àëüâåîëÿðíîãî áà- çàëüíîãî åï³òåë³þ ëþäèíè (ë³í³ÿ A549) áóëî âè- êîðèñòàíî ÎØÂÍÒ, ôóíêö³îíàë³çîâàí³ ïðèºäíàí- íÿì àì³íîãðóï, òà ÁØÂÍÒ, ôóíêö³îíàë³çîâàí³ 1,3-äèïîëÿðíèì öèêëîïðèºäíàííÿì [3, 5]. ²ç âè- êîðèñòàííÿì ôóíêö³îíàë³çîâàíèõ ïîë³åòèëåí³ì³- íîì (ÏŲ 600Ê) îêèñíåíèõ ÁØÂÍÒ äëÿ ïðè- ºäíàííÿ òà äîñòàâêè ïëàçì³äíî¿ ÄÍÊ áóëî ïðî- äåìîíñòðîâàíî ç³ñòàâíó ç³ ñòàíäàðòíîþ åôåê- òèâí³ñòü òðàíñôîðìàö³¿ êë³òèí ë³í³¿ HEK 293T. Îêð³ì òîãî, ö³ êîìïëåêñè âèÿâëÿëè íèæ÷ó öè- òîòîêñè÷í³ñòü [131]. ³äîìî òàêîæ ïðî óñï³øíó äîñòàâêó ìàëî¿ ³íòåðôåðóâàëüíî¿ ÐÍÊ (ì³ÐÍÊ), ÿêà çäàòíà ³íã³áóâàòè ñïåöèô³÷íó åêñïðåñ³þ ãåí³â øëÿõîì ÐÍÊ ³íòåðôåðåíö³¿, ïðèºäíàíî¿ äî ÍÒ. ϳñëÿ ³íêóáóâàííÿ êë³òèí ³ç êîìïëåêñà- ìè áóëî çàô³êñîâàíî ñàéëåíñèíã â³äïîâ³äíîãî ãåíó [87, 132]. Áóëî òàêîæ ïîêàçàíî, ùî äîñ- òàâêà ì³ÐÍÊ çà äîïîìîãîþ ÎØÂÍÒ äëÿ ïåâ- íèõ òèï³â êë³òèí ìຠá³ëüøó åôåêòèâí³ñòü, àí³æ çâè÷àéí³ ìåòîäè [133]. Îêðåìèìè äîñë³äæåííÿìè âèÿâëåíî çà- ëåæí³ñòü ïîãëèíàííÿ êë³òèíàìè ÎØÂÍÒ â³ä òèïó ôóíêö³îíàë³çóâàëüíîãî ïîêðèòòÿ [30]. Ïîð³âíÿ- íî ç ÎØÂÍÒ, âêðèòèìè ÏÅà ³ç ìîëåêóëÿðíîþ âàãîþ 5,4 êÄà, çðàçêè ç ìîëåêóëÿðíîþ âàãîþ ÏÅà 2 êÄà ³íòåíñèâí³øå ïîãëèíàëèñÿ êë³òèíà- ìè. Ïðèïóñêàºòüñÿ, ùî ó êë³òèíàõ â³äáóâàºòüñÿ íåïîâíå ïîêðèòòÿ á³÷íèõ ñò³íîê ÂÍÒ ³ â³äêðèò³ ã³äðîôîáí³ ä³ëÿíêè ÍÒ âïëèâàþòü íà ³íòåðíàë³- 94 Íàíîñòðóêòóðíîå ìàòåðèàëîâåäåíèå, 2011, ¹ 2 ÁÈÎÍÀÍÎÌÀÒÅÐÈÀËÛ çàö³þ ÂÍÒ êë³òèíîþ, âçàºìîä³þ÷è ç ã³äðîôîá- íèìè äîìåíàìè êë³òèííî¿ ìåìáðàíè. Âèâ÷àºòüñÿ òàêîæ ìîæëèâ³ñòü âñòàâêè ìî- ëåêóë ÄÍÊ ó ïðîñâ³ò ÂÍÒ äëÿ òðàíñïîðòóâàííÿ ÷óæèííî¿ ÄÍÊ ó êë³òèíó âñåðåäèí³ ÂÍÒ. Öå ìîæå â³äáóâàòèñÿ çà ðàõóíîê ñèë Âàí-äåð-Âà- àëüñà é ã³äðîôîáíèõ âçàºìîä³é ì³æ ÄÍÊ ³ ÂÍÒ. Çà òàêèõ óìîâ ÄÍÊ áóäå çàõèùåíî â³ä 䳿 íóê- ëåàç òà ³íøèõ ôàêòîð³â, ÿê³ ïîðóøóþòü ¿¿ ôóíê- ö³îíàëüí³ñòü [134]. Äîñòàâêà ö³ëüîâèõ ìîëåêóë ó ðîñëèíí³ êë³òè- íè óñêëàäíþºòüñÿ ÷åðåç íàÿâí³ñòü ù³ëüíîãî çîâ- í³øíüîãî áàð’ºðó – êë³òèííî¿ ñò³íêè. Öå îáìå- æóº âèêîðèñòàííÿ äëÿ ðîñëèí áàãàòüîõ ìåòîä³â, ïðèéíÿòíèõ äëÿ ññàâö³â. Ïîð³âíÿíî ç³ çâè÷íèìè ìåòîäàìè äîñòàâêè ìîëåêóë ó ðîñëèíí³ êë³òè- íè, òàêèìè, ÿê á³îáàë³ñòèêà, åëåêòðîïîðàö³ÿ, ì³êðî³í’ºêö³ÿ, ðîçðîáêè íà îñíîâ³ âèêîðèñòàííÿ íàíî÷àñòèíîê ïîâèíí³ ìàòè ðÿä ïåðåâàã. Ö³ ïå- ðåâàãè ïîëÿãàþòü ó ïðîñòîò³, åôåêòèâíîñò³, ðîç- øèðåíîìó ñïåêòð³ ðå÷îâèí, ÿê³ ìîæå áóòè òðàíñ- ïîðòîâàíî â êë³òèíó, òîùî. Ðîçðîáëåííÿ ìåòîä³â âèêîðèñòàííÿ íàíîòðóáîê ÿê íàíîòðàíñïîðòåð³â äëÿ ³íòàêòíèõ êë³òèí ðîñëèí ìຠâåëèêå ïðàê- òè÷íå é ôóíäàìåíòàëüíå çíà÷åííÿ íå ëèøå äëÿ ãåíåòè÷íî¿ òðàíñôîðìàö³¿, à é äëÿ êë³òèííî¿ á³î- ëî㳿, îñê³ëüêè ö³ ìåòîäè ìîæíà çàñòîñîâóâàòè äëÿ âíóòð³øíüîêë³òèííîãî ì³÷åííÿ òà â³çóàë³çàö³¿ [95]. Çîêðåìà ó äîñë³äæåíí³ Liu et al. [95] áóëî îòðèìàíî êîìïëåêñè Ô²ÒÖ ç îêèñíåíèìè ÎØÂÍÒ. ϳñëÿ ³íêóáóâàííÿ ¿õ ³ç êë³òèíàìè ñóñ- ïåíç³éíî¿ êóëüòóðè òþòþíó BY-2 ñïîñòåð³ãàëè ³íòåíñèâíó âíóòð³øíüîêë³òèííó ôëóîðåñöåíö³þ, ïîâ’ÿçàíó, íà äóìêó àâòîð³â, ³ç ïðîíèêíåííÿì öèõ êîìïëåêñ³â ó êë³òèíè. Ìåõàí³çìîì, ÿêèé îïîñå- ðåäêîâóº ïðîíèêíåííÿ êîìïëåêñ³â ó êë³òèíè â öüîìó ðàç³, âî÷åâèäü, º ð³äêîôàçíèé åíäîöèòîç. Íà êîðèñòü öüîãî ïðèïóùåííÿ ñâ³ä÷èòü óñòàíîâ- ëåííÿ òåìïåðàòóðíî¿ çàëåæíîñò³ ³íòåíñèâíîñò³ âíóòð³øíüîêë³òèííî¿ ôëóîðåñöåíö³¿. Îêð³ì òîãî, îáðîáêà êë³òèí ³íã³á³òîðîì åíäîöèòîçó âîðòìà- í³íîì ñïðè÷èíÿëà çìåíøåííÿ á³ëüø í³æ óäâ³÷³ ³íòåíñèâíîñò³ ôëóîðåñöåíòíîãî ñèãíàëó ïîð³âíÿ- íî ç íåîáðîáëåíèìè êë³òèíàìè.  ³íø³é ÷àñòèí³ åêñïåðèìåíòó àâòîðè ðîáîòè [95] çà äîïîìîãîþ îáðîáêè óëüòðàçâóêîì àäñîðáóâàëè íà îêèñíå- íèõ ÎØÂÍÒ îäíîíèòêîâó ÄÍÊ, ì³÷åíó Ô²ÒÖ. Îòðèìàí³ ñòàá³ëüíî äèñïåðãîâàí³ ó âîä³ êîí’þ- ãàòè ÎØÂÍÒ–ÄÍÊ–Ô²ÒÖ òàêîæ óñï³øíî ïðî- íèêàëè â êë³òèíó. Âíóòð³øíüîêë³òèííà ôëóîðåñ- öåíö³ÿ çàãàëîì ñïîñòåð³ãàëàñÿ ó á³ëüø í³æ 80% êë³òèí, ³íêóáîâàíèõ ç ÎØÂÍÒ–ÄÍÊ, ùî ñâ³ä÷èòü ïðî åôåêòèâí³ñòü ïåðåíåñåííÿ ìîëå- êóë ÄÍÊ íàíîòðóáêàìè â ³íòàêòí³ êë³òèíè ðîñ- ëèí. Ñë³ä çàçíà÷èòè, ùî ó êë³òèí, ³íêóáîâàíèõ ç ÎØÂÍÒ-Ô²ÒÖ, ôëóîðåñöåíö³ÿ ñïîñòåð³ãàëàñÿ ïåðåâàæíî ó âàêóîëÿõ, òîä³ ÿê ó êë³òèí, ³íêóáî- âàíèõ ç ÎØÂÍÒ–ÄÍÊ–Ô²ÒÖ, – ó öèòîïëàçì³. Ó çãàäàíîìó âèùå äîñë³äæåíí³ íå áóëî âèÿâëå- íî òîêñè÷íîñò³ ÂÍÒ äëÿ êë³òèí ðîñëèí. Âîíè äåìîíñòðóâàëè íîðìàëüíó ìîðôîëîã³þ, ñòàí öèòîïëàçìè òà ð³âåíü ïðîë³ôåðàö³¿ [95]. Ó ðàìêàõ äîñë³äæåííÿ ùîäî ðîçðîáëåííÿ ñèñòåìè ãåíåòè÷íî¿ òðàíñôîðìàö³¿ ðîñëèííèõ êë³òèí çà äîïîìîãîþ ÂÍÒ íàìè áóëî ïðîâåäåíî ðÿä åêñïåðèìåíò³â ³ç çàñòîñóâàííÿì óëüòðàçâó- êîâî¿ îáðîáêè, â ðåçóëüòàò³ ÿêèõ îòðèìàíî äèñ- ïåðãîâàí³ ó âîä³ êîìïëåêñè ÁØÂÍÒ ³ç ïëàçì³ä- íîþ ÄÍÊ ó âèãëÿä³ ñòàá³ëüíîãî êîëî¿äíîãî ðîç- ÷èíó [135]. Âèêîðèñòàíà â öèõ åêñïåðèìåíòàõ ìåòîäèêà êîíöåïòóàëüíî íàáëèæåíà äî ìåòîäè- êè, îïèñàíî¿ ÿïîíñüêèìè äîñë³äíèêàìè â åêñïå- ðèìåíòàõ ç ÎØÂÍÒ [58]. Îòðèìàí³ íàìè ðå- çóëüòàòè óçãîäæóþòüñÿ ç ðåçóëüòàòàìè, íàâå- äåíèìè ó çãàäàíîìó äîñë³äæåíí³, à ñàìå: îáðîáêà óëüòðàçâóêîì ³íäóêóº âñòàíîâëåííÿ íå- êîâàëåíòíèõ çâ’ÿçê³â ì³æ ïîâåðõíåþ á³÷íèõ ñò³íîê ÂÍÒ ³ ìîëåêóëàìè ÄÍÊ. Óíàñë³äîê öüî- ãî óòâîðþþòüñÿ êîìïëåêñè, â ÿêèõ àçîòèñò³ îñ- íîâè ÄÍÊ âñòóïàþòü ó π–π-ñòåê³íã-âçàºìîä³þ ç ïîâåðõíåþ ÂÍÒ, à ã³äðîô³ëüí³ öóêðî-ôîñôàòí³ ãðóïè âèÿâëÿþòüñÿ ñïðÿìîâàíèìè â á³ê äèñïåð- ñíîãî ñåðåäîâèùà – âîäè. Òîìó ö³ êîìïëåêñè íàáóâàþòü çäàòíîñò³ äèñïåðãóâàòèñÿ ó âîä³. Òàêèé êîëî¿äíèé ðîç÷èí ðîçãëÿäàþòü ÿê òðàíñ- ôîðìàö³éíî-àêòèâíó ñóì³ø, ùî ì³ñòèòü ö³ëüîâ³ ïîñë³äîâíîñò³ ÄÍÊ, àäñîðáîâàí³ íà ïîâåðõí³ ô³çè÷íîãî íîñ³ÿ, ÿêèì ñëóãóº íàíîòðóáêà. Ñë³ä çàçíà÷èòè, ùî òàêèé ïîãëÿä óðàõîâóº çäàòí³ñòü îáðîáêè óëüòðàçâóêîì ë³ì³òóâàòè òðàíñôîðìà- ö³éíó àêòèâí³ñòü êîìïëåêñó, îñê³ëüêè óëüòðàçâóê ðóéíóº íàòèâíó ñòðóêòóðó ïëàçì³äíî¿ ÄÍÊ. Äëÿ âñòàíîâëåííÿ ñòóïåíÿ óøêîäæåííÿ ïëàç- ì³äíî¿ ÄÍÊ ìåòîäîì ïîë³ìåðàçíî¿ ëàíöþãîâî¿ 95 М АТ ЕР ИА ЛО ВЕ Д ЕН ИЕ Íàíîñòðóêòóðíîå ìàòåðèàëîâåäåíèå, 2011, ¹ 2 ðåàêö³¿ áóëî âèêîðèñòàíî êîìïëåêñ ÁØÂÍÒ – ïëàçì³äíà ÄÍÊ – ãåí ëàêòîôåðèíó ³ç çàçäàëåã³äü ï³ä³áðàíèìè äî öüîãî ãåíó ïðàéìåðàìè. Äåòåê- ö³ÿ ñïåöèô³÷íèõ àìïë³êîí³â ó ðÿä³ çðàçê³â ìîæå ñâ³ä÷èòè ïðî íàÿâí³ñòü ó êîìïëåêñàõ àáî ö³ëî¿ ïëàçì³äè, àáî ¿¿ ÷àñòèí (óëàìê³â), ùî ì³ñòÿòü çãàäàíó âèùå ö³ëüîâó ïîñë³äîâí³ñòü. Îêð³ì òîãî, áóëî îäåðæàíî êîëî¿äí³ ðîç÷èíè êîìïëåê- ñ³â ÁØÂÍÒ ³ç äåçîêñèðèáîíóêëåîòèäòðèôîñ- ôàòàìè (äÍÒÔ) óíàñë³äîê îáðîáêè ñóì³ø³ ÁØÂÍÒ–äÍÒÔ óëüòðàçâóêîì. Öå ï³äòâåðäæóº òîé ôàêò, ùî âçàºìîä³ÿ ì³æ ÂÍÒ ³ ÄÍÊ â³äáó- âàºòüñÿ íà ð³âí³ ñòðóêòóðíèõ ìîíîìåð³â (äåçîê- ñèðèáîíóêëåîòèäòðèôîñôàò³â) îñòàííüî¿, ÿê³ é îêðåìî (ñóì³ø äÍÒÔ), é ó ñêëàä³ ëàíöþãà ìî- ëåêóëè ÄÍÊ ïåâíèì ÷èíîì âçàºìîä³þòü ³ç ÂÍÒ òà îð³ºíòóþòüñÿ ùîäî ¿¿ ïîâåðõí³. Ðîçïî÷àòî äîñ- ë³äæåííÿ çäàòíîñò³ òàêèõ êîìïëåêñ³â ÄÍÊ– ÁØÂÍÒ òðàíñôîðìóâàòè êóëüòóðó êë³òèí ðîñ- ëèí ³ç ìåòîþ ç’ÿñóâàííÿ åêñïåðèìåíòàëüíèõ ôàêòîð³â, ÿê³ âïëèâàþòü íà öåé ïðîöåñ, à òàêîæ ñïåöèô³êè âçàºìî䳿 òà ëîêàë³çàö³¿ êîìïëåêñ³â ó ðîñëèíí³é êë³òèí³. Áåçïå÷í³ñòü âèêîðèñòàííÿ ÂÍÒ ó ãåíåòè÷í³é ³íæåíå𳿠Çðîçóì³ëî, ïèòàííÿ áåçïå÷íîñò³ íàíîìàòåð³- àë³â çàãàëîì ³ ÂÍÒ çîêðåìà íåðîçðèâíî ïîâ’ÿ- çàíî ³ç áóäü-ÿêèì âèêîðèñòàííÿì äîðîáêó íàíî- òåõíîëî㳿. Ïîãëèíàííÿ, á³îàêóìóëÿö³ÿ, á³îòðàíñ- ôîðìàö³ÿ òà ìîæëèâèé ðèçèê ÷åðåç çàñòîñóâàííÿ íàíîìàòåð³àë³â ó äîñë³äàõ íà ðîñëèíàõ, ó òîìó ÷èñë³ é íà ðîñëèíàõ õàð÷îâîãî ïðèçíà÷åííÿ, é äîòåïåð âèâ÷åíî íåäîñòàòíüî [136]. Ïîêè ùî äåòàëüí³ø³ äîñë³äæåííÿ â öüîìó íàïðÿ- ì³ çä³éñíåíî ç âèêîðèñòàííÿì ôóëåðåí³â C70 ÿê ïðåäñòàâíèê³â âóãëåöåâèõ íàíîñòðóêòóð [53, 137]. Îáðîáêà ðîñëèí âîäîðîç÷èííèìè ôóëåðå- íàìè ñïðè÷èíÿëà ïîðóøåííÿ òêàíèííîãî ðîçïîä³- ëó ô³òîãîðìîí³â, êë³òèííîãî ïîä³ëó, îðãàí³çàö³¿ ì³êðîòðóáî÷îê ³ ì³òîõîíäð³àëüíî¿ àêòèâíîñò³ [137]. Îêð³ì òîãî, ôóëåðåíè âèÿâèëè çäàòí³ñòü ïåðå- äàâàòèñÿ íàñòóïíèì ïîêîë³ííÿì ðîñëèí ÷åðåç íàñ³ííÿ [53]. Íàÿâí³ äàí³ ïðî çäàòí³ñòü ÂÍÒ çà ïåâíèõ óìîâ çä³éñíþâàòè òîêñè÷íèé âïëèâ íà ðîñëèíí³ êë³òèíè ïîÿñíþþòüñÿ ô³çè÷íèì óø- êîäæåííÿì êë³òèíè é ñóáêë³òèííèõ ñòðóêòóð, ãåíåðóâàííÿì îêñèäàòèâíîãî ñòðåñó ç ïîäàëü- øèì àïîïòîçîì [113, 114]. Òîêñè÷í³ñòü ÂÍÒ äëÿ êë³òèí ðîñëèí çàëåæèòü â³ä äîçè ÂÍÒ òà ÷àñó ³íêóáàö³¿. Äî òîãî æ âàæëèâó ðîëü â³ä³ãðàþòü ïîâåðõíåâ³ õàðàêòåðèñòèêè ÂÍÒ, çîêðåìà òèï ôóíêö³îíàë³çóâàëüíîãî ïîêðèòòÿ. Ö³ë³ñíå ðîçó- ì³ííÿ âçàºìî䳿 íàíîìàòåð³àë³â ³ ðîñëèíè º êðè- òè÷íèì äëÿ ïîäîëàííÿ òîêñèêîëîã³÷íèõ çàñòå- ðåæåíü ïðè çàñòîñóâàíí³ íàíîòåõíîëîã³é ó ñ³ëüñüêîìó ãîñïîäàðñòâ³ (ó áîðîòüá³ ç çàõâîðþ- âàííÿìè ðîñëèí, ãåíåòè÷í³é ³íæåíå𳿠òîùî). Òîìó â öüîìó íàïðÿì³ íèí³ ðîçðîáëÿþòü ñó÷àñ- íó áàçó äëÿ äîñë³äæåíü, ÿê³ äàþòü çìîãó ³íòåã- ðóâàòè ãåíåòè÷í³, ðàìàí³âñüê³, ôîòîòåðì³÷í³ òà ôîòîàêóñòè÷í³ ìåòîäè [138]. ßê ïðîäåìîíñòðî- âàíî â çàçíà÷åí³é ðîáîò³, òàêèé ï³äõ³ä äîïîìà- ãຠçä³éñíèòè äåòåêö³þ ïîîäèíîêèõ ÁØÂÍÒ íà ð³âí³ êë³òèíè. Óñå öå ñïðèÿº ðîçðîáëåííþ åôåê- òèâí³øèõ ìåòîäèê âçàºìî䳿 ÂÍÒ ç ðîñëèííèìè êë³òèíàìè, çîêðåìà ìåòîäèêè ãåíåòè÷íî¿ òðàíñ- ôîðìàö³¿ ðîñëèí. Ñë³ä íàãàäàòè, ùî ÁØÂÍÒ, ïîãëèíàþ÷èñü êë³òèíîþ øëÿõîì åíäîöèòîçó, íàêîïè÷óþòüñÿ â åíäîñîìàõ, çâ³äêè âèâ³ëüíÿþòüñÿ â ö³ëüîâ³ îðãà- íåëè (çîêðåìà â ÿäðî), à á³ëüøà ÷àñòèíà ¿õ ïîòðàï- ëÿº äî ë³çîñîì òà åêñêðåòóºòüñÿ êë³òèíîþ [124]. Íåùîäàâíî áóëî ïðîäåìîíñòðîâàíî, ùî êîðîò- ê³ ÁØÂÍÒ (<100 íì) ó ðîñëèííèõ ïðîòîïëàñòàõ ñïåöèô³÷íî ñïðÿìîâóþòüñÿ äî ÿäðà, ïëàñòèä ³ âàêóîëåé [128]. Ö³ ðåçóëüòàòè òàêîæ ìàþòü âàæëèâå çíà÷åííÿ äëÿ äàëüøîãî ðîçâèòêó òåõ- íîëîã³é ãåíåòè÷íî¿ òðàíñôîðìàö³¿. Òðåáà óñâ³- äîìëþâàòè, ùî ãåíåòè÷íà òðàíñôîðìàö³ÿ ïåðåä- áà÷ຠ³íêóáóâàííÿ ëèøå îêðåìèõ ðîñëèí- íèõ êë³òèí ³ç ÂÍÒ é òðàíñôîðìàö³éíà ïîä³ÿ â³ä- áóâàºòüñÿ íà ð³âí³ îêðåìî¿ êë³òèíè. Îêðåì³ óñï³ø- íî òðàíñôîðìîâàí³ êë³òèíè äàþòü ïî÷àòîê òðàíñãåííèì ðîñëèíàì-ðåãåíåðàíòàì, ³ç ÿêèõ äàë³ óòâîðþþòü ë³í³¿ ðîñëèí, ùî ìàþòü áàæàíó îçíàêó. Ó òàêîìó ðàç³ ê³ëüê³ñòü ÂÍÒ, ÿêà ïîòðà- ïèëà ó òðàíñôîðìîâàíó êë³òèíó, º íåçíà÷íîþ é çãîäîì ìຠö³ëêîì åë³ì³íóâàòèñÿ ó ïðîöåñ³ îò- ðèìàííÿ ðîñëèí-ðåãåíåðàíò³â. Òàêèì ÷èíîì, ãåíåòè÷íà ³íæåíåð³ÿ ðîñëèí ³ç âèêîðèñòàííÿì ÂÍÒ íå ïåðåäáà÷ຠìàñøòàá- íî¿ òà õðîí³÷íî¿ åêñïîçèö³¿ ðîñëèí ³ç íàíîòðóá- 96 Íàíîñòðóêòóðíîå ìàòåðèàëîâåäåíèå, 2011, ¹ 2 ÁÈÎÍÀÍÎÌÀÒÅÐÈÀËÛ êàìè. Ç îãëÿäó íà öå íåìຠï³äñòàâ ðîçãëÿäàòè ìîæëèâ³ñòü ì³ãðàö³¿ ÂÍÒ õàð÷îâèìè ëàíöþæ- êàìè â îðãàí³çì òâàðèí ³ ëþäèíè ç ðîñëèí, îäåð- æàíèõ óíàñë³äîê ïîä³áíî¿ òðàíñôîðìàö³¿. Ó òà- êîìó êîíòåêñò³ âàæëèâèì çàëèøàºòüñÿ ïèòàííÿ çìåíøåííÿ òîêñè÷íîñò³ ÂÍÒ, ùî ìຠçíà÷åííÿ äëÿ ï³äâèùåííÿ ð³âíÿ åôåêòèâíîñò³ òðàíñôîð- ìàö³¿ çà äîïîìîãîþ ¿õ. Ïåâíà ð³÷, â ³íøèõ âè- ïàäêàõ, çîêðåìà ó ðîçðîáêàõ, ùî ñòîñóþòüñÿ ìîæëèâîñò³ âèêîðèñòàííÿ íàíîòðóáîê ÿê ôàê- òîð³â ïîñèëåííÿ ïðîðîñòàííÿ íàñ³ííÿ, ïîë³ïøåí- íÿ ðîñòó ñ³ëüñüêîãîñïîäàðñüêèõ ðîñëèí òà ÿê àãåíò³â äîñòàâêè ñïåöèô³÷íèõ õ³ì³÷íèõ ñïîëóê ó ðîñëèíè, íåâ³ä’ºìíèì îáìåæíèì ÷èííèêîì º âèçíà÷åííÿ äîë³ ÂÍÒ ï³ñëÿ ââåäåííÿ ó ðîñëèíè é ìîæëèâ³ñòü ïîòðàïëÿííÿ ¿õ â îðãàí³çì ëþäèíè ÷è òâàðèí òà â íàâêîëèøíº ñåðåäîâèùå. Âèñíîâêè Îñê³ëüêè ðîëü íàíîòåõíîëîã³é ó âñ³õ ñôåðàõ ä³ÿëüíîñò³ ëþäèíè ïîñò³éíî çðîñòàº, ó ñó÷àñí³é á³îòåõíîëî㳿 äåäàë³ âàæëèâ³øèì ³ âåëüìè ïåðñ- ïåêòèâíèì íàïðÿìîì ñòຠïðàêòè÷íå çàñòîñó- âàííÿ ð³çíèõ íàíîìàòåð³àë³â, çîêðåìà ÂÍÒ. Ç îãëÿäó íà íèçêó îñîáëèâèõ âëàñòèâîñòåé ÂÍÒ âèêëèêàþòü çíà÷íèé ³íòåðåñ ùîäî ìîæëèâîñò³ âèêîðèñòàííÿ ¿õ ÿê ô³çè÷íèõ ïåðåíîñíèê³â ìîëå- êóë ó êë³òèíè, çîêðåìà â ãåíåòè÷í³é ³íæåíå𳿠ðîñëèí. Ñïðèÿòëèâå ï³ä´ðóíòÿ äëÿ ðîçâèòêó öüî- ãî íàïðÿìó çóìîâëåíî òàêîæ ÷èñëåííèìè äîñë³- äæåííÿìè â ñóì³æíèõ ãàëóçÿõ, äå ñòâîðþºòüñÿ òîé áàçèñ ³íôîðìàö³¿, ùî ñòàíîâèòü îñíîâó äëÿ ðîçðîáëåííÿ ìåòîä³â òðàíñôîðìàö³¿ ðîñëèí ³ç âèêîðèñòàííÿì ÷óæîð³äíî¿ ÄÍÊ çà äîïîìîãîþ ÂÍÒ. Ïåðøèì åòàïîì âèêîðèñòàííÿ ÂÍÒ ÿê ô³çè÷íèõ âåêòîð³â äëÿ ãåíåòè÷íî¿ òðàíñôîðìàö³¿ ðîñëèí º îäåðæàííÿ ôóíêö³îíàë³çîâàíèõ ÂÍÒ ³ç äîòðèìàííÿì íèçêè âèìîã á³îëîã³÷íî¿ ñóì³ñíîñò³ òà åôåêòèâíîñò³ ôóíêö³îíàë³çóâàëüíîãî ïîêðèò- òÿ. ³äïîâ³äíà ôóíêö³îíàë³çàö³ÿ äຠçìîãó ìàñ- êóâàòè ôàêòîðè, çäàòí³ îáóìîâëþâàòè öèòîòîê- ñè÷í³ñòü ÂÍÒ. Îêð³ì òîãî, âîíà çàáåçïå÷óº ñïðî- ìîæí³ñòü îòðèìàíèõ êîìïëåêñ³â äèñïåðãóâàòèñÿ ó âîäíîìó ñåðåäîâèù³ òà ïðèºäíóâàòè ö³ëüîâ³ ìîëåêóëè, ïðèçíà÷åí³ äëÿ äîñòàâêè ó êë³òèíó. Çäàòí³ñòü ÂÍÒ áåçïîñåðåäíüî íåêîâàëåíòíî âçàºìîä³ÿòè ç ìîëåêóëàìè ÄÍÊ çà ðàõóíîê ã³äðî- ôîáíèõ çâ’ÿçê³â ñòâîðþº ï³äñòàâè äëÿ ïðîâåäåí- íÿ åêñïåðèìåíò³â ùîäî íåîïîñåðåäêîâàíîãî çâ’ÿçóâàííÿ ÄÍÊ, ÿêó ïëàíóºòüñÿ ïåðåíåñòè âñåðåäèíó êë³òèí, ç³ ñò³íêàìè ÂÍÒ. Ïîòð³áí³ äàëüø³ äîñë³äæåííÿ ìîæëèâîñò³ òðàíñôîðìóâà- òè ðîñëèíí³ êë³òèíè, âêðèò³ êë³òèííîþ ñò³íêîþ, ñàìå çà äîïîìîãîþ öèõ êîìïëåêñ³â. Îõàðàêòåðèçîâàíû ñâîéñòâà óãëåðîäíûõ íàíîòðóáîê êàê ïåðñïåêòèâíîãî äëÿ ïðèìåíåíèÿ â áèîòåõíîëîãèè êëàññà íàíîìàòåðèàëîâ. Îáñóæäàåòñÿ âîïðîñ ôóíêöèîíàëèçàöèè óãëåðîäíûõ íàíîòðóáîê äëÿ ïîâûøåíèÿ èõ áèîëîãè÷åñêîé ñîâìåñòèìîñòè. Îñâåùåíû ïðåèìóùåñòâà ïðèìåíåíèÿ óã- ëåðîäíûõ íàíîòðóáîê äëÿ ðàçðàáîòêè íîâûõ ñèñòåì ãåíå- òè÷åñêîé òðàíñôîðìàöèè ðàñòåíèé è ñâÿçàííûå ñ ýòèì ïðîá- ëåìû. Îïèñàíà ìåòîäèêà ïîëó÷åíèÿ äèñïåðãèðîâàííûõ â âîäå êîìïëåêñîâ ÄÍÊ ñ ìíîãîñëîéíûìè óãëåðîäíûìè íà- íîòðóáêàìè. Êëþ÷åâûå ñëîâà: óãëåðîäíûå íàíîòðóáêè, ãåíåòè÷åñêàÿ òðàíñôîðìàöèÿ ðàñòåíèé Properties of the carbon nanotubes as nanomaterials having great promises for biotechnological applications are characterized. The issue of increased biocompatibility functionalization of carbon nanotubes is discussed. The advantages and problems of using carbon nanotubes for the development of novel systems for plant genetic transformation are elucidated. Production of aqueous dispersion of multi-walled carbon nanotubes with DNA is described. Key words: carbon nanotubes, plant genetic transformation 1. Roco M. C., Bainbridge W. S. Converging technologies for improving human performance. NSF Doc. Report. – The Netherlands, Dordrecht: Kluwer Academic Publishers, 2003. – 482 p. 2. Applications of carbon nanotubes in biotechnology / Bekyarova E., Ni Y., Malarkey E.B et al. // J. Biomed. Nanotechnol. – 2005. – 1, N 1. – P. 3–17. 3. 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id nasplib_isofts_kiev_ua-123456789-62783
institution Digital Library of Periodicals of National Academy of Sciences of Ukraine
issn 1996-9988
language Ukrainian
last_indexed 2025-12-07T16:56:36Z
publishDate 2011
publisher Інститут проблем матеріалознавства ім. І.М. Францевича НАН України
record_format dspace
spelling Бурлака, О.М.
Пірко, Я.В.
Ємець, А.І.
Блюм, Я.Б.
2014-05-25T19:49:34Z
2014-05-25T19:49:34Z
2011
Вуглецеві нанотрубки та застосування їх для генетичної трансформації рослин / О.М. Бурлака, Я.В. Пірко, А.І. Ємець, Я.Б. Блюм // Наноструктурное материаловедение. — 2011. — № 2. — С. 84-101. — Бібліогр.: 138 назв. — укр.
1996-9988
https://nasplib.isofts.kiev.ua/handle/123456789/62783
604.6+546.26-03
Охарактеризовано властивості вуглецевих нанотрубок як перспективного длязастосування у біотехнології класу наноматеріалів. Обговорюється питання функціоналізації вуглецевих нанотрубок для підвищення біологічної сумісності їх.Висвітлено переваги застосування вуглецевих нанотрубок для розроблення новихсистем генетичної трансформації рослин та пов’язані із цим проблеми. Описанометодику отримання диспергованих у воді комплексів ДНК з багатошаровими вуглецевими нанотрубками.
Охарактеризованы свойства углеродных нанотрубок как перспективного для применения в биотехнологии классананоматериалов. Обсуждается вопрос функционализации углеродных нанотрубок для повышения их биологическойсовместимости. Освещены преимущества применения углеродных нанотрубок для разработки новых систем генетической трансформации растений и связанные с этим проблемы. Описана методика получения диспергированных вводе комплексов ДНК с многослойными углеродными нанотрубками.
Properties of the carbon nanotubes as nanomaterials having great promises for biotechnological applications are characterized. The issue of increased biocompatibility functionalization of carbon nanotubes is discussed. The advantages and problems of using carbon nanotubes for the development of novel systems for plant genetic transformation are elucidated. Production of aqueous dispersion of multi-walled carbon nanotubes with DNA is described.
uk
Інститут проблем матеріалознавства ім. І.М. Францевича НАН України
Наноструктурное материаловедение
Бионаноматериалы
Вуглецеві нанотрубки та застосування їх для генетичної трансформації рослин
Article
published earlier
spellingShingle Вуглецеві нанотрубки та застосування їх для генетичної трансформації рослин
Бурлака, О.М.
Пірко, Я.В.
Ємець, А.І.
Блюм, Я.Б.
Бионаноматериалы
title Вуглецеві нанотрубки та застосування їх для генетичної трансформації рослин
title_full Вуглецеві нанотрубки та застосування їх для генетичної трансформації рослин
title_fullStr Вуглецеві нанотрубки та застосування їх для генетичної трансформації рослин
title_full_unstemmed Вуглецеві нанотрубки та застосування їх для генетичної трансформації рослин
title_short Вуглецеві нанотрубки та застосування їх для генетичної трансформації рослин
title_sort вуглецеві нанотрубки та застосування їх для генетичної трансформації рослин
topic Бионаноматериалы
topic_facet Бионаноматериалы
url https://nasplib.isofts.kiev.ua/handle/123456789/62783
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