Silver nanoparticles with reduced graphene oxide for surface-enhanced vibrational spectroscopy of DNA constituents

Siim Heinsalu, Olena Fesenko, Aleksei Treshchalov, Serhii Kovalchuk, Andrii Yaremkevych, Vladyslav Kavelin*, Leonid Dolgov

*この研究の対応する著者

研究成果: Article査読

2 被引用数 (Scopus)

抄録

Composite of silver nanoparticles with reduced graphene oxide flakes is proposed for surface enhanced vibrational spectroscopy, particularly for detection of adenine and thymine as constituents of deoxyribonucleic acid. Composite was formed by original method implying simultaneous reduction of silver ions and graphene oxide by discharge plasma at the gas–liquid interface. Combination of nanosized silver with reduced graphene oxide provided greater enhancement of Raman light scattering and infrared light absorption in comparison with separately used components. Addition of the composite to water solutions of adenine and thymine allowed detection of these analytes at micromolar concentrations. Composite of nano-silver with reduced graphene oxide can be prospective for surface enhanced spectroscopy as an alternative to the expensive lithographically prepared noble metal substrates.

本文言語English
ページ(範囲)1075-1083
ページ数9
ジャーナルApplied Nanoscience (Switzerland)
9
5
DOI
出版ステータスPublished - 2019 7 1

ASJC Scopus subject areas

  • バイオテクノロジー
  • 原子分子物理学および光学
  • 材料科学(その他)
  • 物理化学および理論化学
  • 細胞生物学
  • 電子工学および電気工学

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