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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Veröffentlicht in:Semiconductor Physics Quantum Electronics & Optoelectronics
Datum:2004
Hauptverfasser: 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.
Format: Artikel
Sprache:English
Veröffentlicht: Інститут фізики напівпровідників імені В.Є. Лашкарьова НАН України 2004
Online Zugang:https://nasplib.isofts.kiev.ua/handle/123456789/119133
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Назва журналу:Digital Library of Periodicals of National Academy of Sciences of Ukraine
Zitieren: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
id nasplib_isofts_kiev_ua-123456789-119133
record_format dspace
spelling 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.
2017-06-04T16:41:26Z
2017-06-04T16:41:26Z
2004
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
https://nasplib.isofts.kiev.ua/handle/123456789/119133
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.
We are greatly indebted to the Foundation of Funda- mental Research of Ministry of Sciences and Education of Ukraine and the special programme of Academy of Sciences of Ukraine No ВЦ - 99.404/44 for financial assistance.
en
Інститут фізики напівпровідників імені В.Є. Лашкарьова НАН України
Semiconductor Physics Quantum Electronics & Optoelectronics
Gold and colloidal gold surface influence on dna conformational change
Article
published earlier
institution Digital Library of Periodicals of National Academy of Sciences of Ukraine
collection DSpace DC
title Gold and colloidal gold surface influence on dna conformational change
spellingShingle 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.
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
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.
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.
publishDate 2004
language English
container_title Semiconductor Physics Quantum Electronics & Optoelectronics
publisher Інститут фізики напівпровідників імені В.Є. Лашкарьова НАН України
format Article
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.
issn 1560-8034
url https://nasplib.isofts.kiev.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.
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first_indexed 2025-12-07T15:29:04Z
last_indexed 2025-12-07T15:29:04Z
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