Gold and colloidal gold surface influence on dna conformational change

Gold and colloidal gold surface influence on dna conformational change

DNA conformational changes caused by gold and colloidal gold surface have been studied by surface enhanced infrared spectroscopy (SEIRA), spectroscopy of plasmon resonance (SPR), atomic force microscopy (AFM) and principal component analysis. Experimental data have shown that DNA conformation is sli...

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Бібліографічні деталі
Дата:2004
Автори: Dovbeshko, G.I., Gnatyuk, O.P., Chegel, V.I., Shirshov, Y.M., Kosenkov, D.V., Andreev, E.A., Tajmir-Riahi, H.A., Lytvyn, P.M.
Формат: Стаття
Мова:English
Опубліковано: Інститут фізики напівпровідників імені В.Є. Лашкарьова НАН України 2004
Назва видання:Semiconductor Physics Quantum Electronics & Optoelectronics
Онлайн доступ:http://dspace.nbuv.gov.ua/handle/123456789/119133
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Назва журналу:Digital Library of Periodicals of National Academy of Sciences of Ukraine
Цитувати:Gold and colloidal gold surface influence on dna conformational change / G.I. Dovbeshko, O.P. Gnatyuk, V.I. Chegel, Y.M. Shirshov, D.V. Kosenkov, E.A. Andreev, H.A. Tajmir-Riahi, P.M. Lytvyn // Semiconductor Physics Quantum Electronics & Optoelectronics. — 2004. — Т. 7, № 3. — С. 318-325. — Бібліогр.: 40 назв. — англ.

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Digital Library of Periodicals of National Academy of Sciences of Ukraine
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spelling irk-123456789-1191332017-06-05T03:02:47Z Gold and colloidal gold surface influence on dna conformational change Dovbeshko, G.I. Gnatyuk, O.P. Chegel, V.I. Shirshov, Y.M. Kosenkov, D.V. Andreev, E.A. Tajmir-Riahi, H.A. Lytvyn, P.M. DNA conformational changes caused by gold and colloidal gold surface have been studied by surface enhanced infrared spectroscopy (SEIRA), spectroscopy of plasmon resonance (SPR), atomic force microscopy (AFM) and principal component analysis. Experimental data have shown that DNA conformation is slightly influenced by gold surface, while it is strongly altered by colloidal gold. Spectroscopic features of DNA-colloidal gold system have shown that the intensity of the asymmetric PO₂– band at 1240 cm⁻¹ decreases by two times, and that of symmetric band at 1090 cm⁻¹ decreases by 2.4 times whereas the halfwidth of phosphate bands increases by 35–40 cm⁻¹; a frequency shift of asymmetric band position from 1240 to 1246 cm⁻¹ and a symmetric band from 1090 to 1106 cm⁻¹ has been observed. It was shown that intensity variation and shift of DNA base vibrations together with the broadening of OH, NH, and CH stretching vibrations occur due to DNA conformational changes and the redistribution of the H-bonding network. A supposition about DNA condensation by colloidal gold was made. SEIRA and AFM data have showed major DNA structural changes occurred on gold colloidal particles. It was found that all the spectral features are more prominent for DNA–colloidal gold system deposited on gold substrate than on CaF₂ substrate. 2004 Article Gold and colloidal gold surface influence on dna conformational change / G.I. Dovbeshko, O.P. Gnatyuk, V.I. Chegel, Y.M. Shirshov, D.V. Kosenkov, E.A. Andreev, H.A. Tajmir-Riahi, P.M. Lytvyn // Semiconductor Physics Quantum Electronics & Optoelectronics. — 2004. — Т. 7, № 3. — С. 318-325. — Бібліогр.: 40 назв. — англ. 1560-8034 PACS: 78.30L.68.; 87.15N http://dspace.nbuv.gov.ua/handle/123456789/119133 en Semiconductor Physics Quantum Electronics & Optoelectronics Інститут фізики напівпровідників імені В.Є. Лашкарьова НАН України
institution Digital Library of Periodicals of National Academy of Sciences of Ukraine
collection DSpace DC
language English
description DNA conformational changes caused by gold and colloidal gold surface have been studied by surface enhanced infrared spectroscopy (SEIRA), spectroscopy of plasmon resonance (SPR), atomic force microscopy (AFM) and principal component analysis. Experimental data have shown that DNA conformation is slightly influenced by gold surface, while it is strongly altered by colloidal gold. Spectroscopic features of DNA-colloidal gold system have shown that the intensity of the asymmetric PO₂– band at 1240 cm⁻¹ decreases by two times, and that of symmetric band at 1090 cm⁻¹ decreases by 2.4 times whereas the halfwidth of phosphate bands increases by 35–40 cm⁻¹; a frequency shift of asymmetric band position from 1240 to 1246 cm⁻¹ and a symmetric band from 1090 to 1106 cm⁻¹ has been observed. It was shown that intensity variation and shift of DNA base vibrations together with the broadening of OH, NH, and CH stretching vibrations occur due to DNA conformational changes and the redistribution of the H-bonding network. A supposition about DNA condensation by colloidal gold was made. SEIRA and AFM data have showed major DNA structural changes occurred on gold colloidal particles. It was found that all the spectral features are more prominent for DNA–colloidal gold system deposited on gold substrate than on CaF₂ substrate.
format Article
author Dovbeshko, G.I.
Gnatyuk, O.P.
Chegel, V.I.
Shirshov, Y.M.
Kosenkov, D.V.
Andreev, E.A.
Tajmir-Riahi, H.A.
Lytvyn, P.M.
spellingShingle Dovbeshko, G.I.
Gnatyuk, O.P.
Chegel, V.I.
Shirshov, Y.M.
Kosenkov, D.V.
Andreev, E.A.
Tajmir-Riahi, H.A.
Lytvyn, P.M.
Gold and colloidal gold surface influence on dna conformational change
Semiconductor Physics Quantum Electronics & Optoelectronics
author_facet Dovbeshko, G.I.
Gnatyuk, O.P.
Chegel, V.I.
Shirshov, Y.M.
Kosenkov, D.V.
Andreev, E.A.
Tajmir-Riahi, H.A.
Lytvyn, P.M.
author_sort Dovbeshko, G.I.
title Gold and colloidal gold surface influence on dna conformational change
title_short Gold and colloidal gold surface influence on dna conformational change
title_full Gold and colloidal gold surface influence on dna conformational change
title_fullStr Gold and colloidal gold surface influence on dna conformational change
title_full_unstemmed Gold and colloidal gold surface influence on dna conformational change
title_sort gold and colloidal gold surface influence on dna conformational change
publisher Інститут фізики напівпровідників імені В.Є. Лашкарьова НАН України
publishDate 2004
url http://dspace.nbuv.gov.ua/handle/123456789/119133
citation_txt Gold and colloidal gold surface influence on dna conformational change / G.I. Dovbeshko, O.P. Gnatyuk, V.I. Chegel, Y.M. Shirshov, D.V. Kosenkov, E.A. Andreev, H.A. Tajmir-Riahi, P.M. Lytvyn // Semiconductor Physics Quantum Electronics & Optoelectronics. — 2004. — Т. 7, № 3. — С. 318-325. — Бібліогр.: 40 назв. — англ.
series Semiconductor Physics Quantum Electronics & Optoelectronics
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first_indexed 2023-10-18T20:33:50Z
last_indexed 2023-10-18T20:33:50Z
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