Orientation changes in surface-bound hybridized DNA undergoing preparation for ex situ spectroscopic measurements

Films of surface-bound homo-oligonucleotides on gold were hybridized and subjected to rinses using various volumes of water in preparation for ex situ spectroscopic analysis performed by high-resolution X-ray photoelectron spectroscopy, near-edge X-ray absorption fine structure spectroscopy, and inf...

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Hauptverfasser: Howell, Caitlin (VerfasserIn) , Hamoudi, Hicham (VerfasserIn) , Heissler, Stefan (VerfasserIn) , Koelsch, Patrick (VerfasserIn) , Zharnikov, Michael (VerfasserIn)
Dokumenttyp: Article (Journal)
Sprache:Englisch
Veröffentlicht: 4 August 2011
In: Chemical physics letters
Year: 2011, Jahrgang: 513, Heft: 4, Pages: 267-270
DOI:10.1016/j.cplett.2011.07.096
Online-Zugang:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1016/j.cplett.2011.07.096
Verlag, lizenzpflichtig, Volltext: https://www.sciencedirect.com/science/article/pii/S000926141100947X
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Verfasserangaben:Caitlin Howell, Hicham Hamoudi, Stefan Heissler, Patrick Koelsch, Michael Zharnikov
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Zusammenfassung:Films of surface-bound homo-oligonucleotides on gold were hybridized and subjected to rinses using various volumes of water in preparation for ex situ spectroscopic analysis performed by high-resolution X-ray photoelectron spectroscopy, near-edge X-ray absorption fine structure spectroscopy, and infrared reflection-absorption spectroscopy. It was found that films rinsed with 0.5mL of water contained well-ordered DNA hybrids, while films rinsed with greater volumes (1 and 2mL) showed a decreased number of hybrids and a significant disruption of their intactness and order. These results illustrate the importance of taking into account preparation procedures when interpreting ex situ spectroscopic data of such systems.
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Beschreibung:Online Resource
DOI:10.1016/j.cplett.2011.07.096