Stable in Biocompatible Buffers Silver Nanoisland Films for SERS

We investigated the stability of silver nanoisland films, which were formed on glass surface by the method of out-diffusion, in biocompatible buffers and the applicability of the films in surface enhanced Raman scattering (SERS). We have shown that silver nanoisland films are stable in one of the mo...

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Autores principales:	Alexey Skvortsov, Ekaterina Babich, Alexey Redkov, Andrey Lipovskii, Valentina Zhurikhina
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	ion-exchange silver nanoparticles stability luminescence Raman SERS Biotechnology TP248.13-248.65
Acceso en línea:	https://doaj.org/article/c78aaa2e933e4704aa419228296dcd78
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spelling	oai:doaj.org-article:c78aaa2e933e4704aa419228296dcd782021-11-25T16:55:33ZStable in Biocompatible Buffers Silver Nanoisland Films for SERS10.3390/bios111104482079-6374https://doaj.org/article/c78aaa2e933e4704aa419228296dcd782021-11-01T00:00:00Zhttps://www.mdpi.com/2079-6374/11/11/448https://doaj.org/toc/2079-6374We investigated the stability of silver nanoisland films, which were formed on glass surface by the method of out-diffusion, in biocompatible buffers and the applicability of the films in surface enhanced Raman scattering (SERS). We have shown that silver nanoisland films are stable in one of the most widespread in biological studies buffer—phosphate buffer saline (PBS), and in 1:100 water-diluted PBS, in the PBS-based buffer, in which NaCl is replaced by the same amount of NaClO<sub>4</sub>, and in acidic phosphate buffer. At the same time, the replacement of NaCl in PBS by N(CH<sub>3</sub>)<sub>4</sub>Cl leads to the degradation of the nanoislands. It was shown that after exposure to PBS the nanoisland films provided a good SERS signal from a monolayer of 1,2-di(4-pyridyl)ethylene (BPE), which makes silver nanoisland films promising for biosensor applications. Additionally, in our experiments, we registered for the first time that silver nanoparticles formed in the bulk of the samples dissolved after exposing to PBS, while nanoislands on the glass surface stayed unchanged. We associate this phenomenon with the interaction of ions contained in PBS solution with silver, which results in the shift of corresponding chemical equilibrium.Alexey SkvortsovEkaterina BabichAlexey RedkovAndrey LipovskiiValentina ZhurikhinaMDPI AGarticleion-exchangesilver nanoparticlesstabilityluminescenceRamanSERSBiotechnologyTP248.13-248.65ENBiosensors, Vol 11, Iss 448, p 448 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	ion-exchange silver nanoparticles stability luminescence Raman SERS Biotechnology TP248.13-248.65
spellingShingle	ion-exchange silver nanoparticles stability luminescence Raman SERS Biotechnology TP248.13-248.65 Alexey Skvortsov Ekaterina Babich Alexey Redkov Andrey Lipovskii Valentina Zhurikhina Stable in Biocompatible Buffers Silver Nanoisland Films for SERS
description	We investigated the stability of silver nanoisland films, which were formed on glass surface by the method of out-diffusion, in biocompatible buffers and the applicability of the films in surface enhanced Raman scattering (SERS). We have shown that silver nanoisland films are stable in one of the most widespread in biological studies buffer—phosphate buffer saline (PBS), and in 1:100 water-diluted PBS, in the PBS-based buffer, in which NaCl is replaced by the same amount of NaClO<sub>4</sub>, and in acidic phosphate buffer. At the same time, the replacement of NaCl in PBS by N(CH<sub>3</sub>)<sub>4</sub>Cl leads to the degradation of the nanoislands. It was shown that after exposure to PBS the nanoisland films provided a good SERS signal from a monolayer of 1,2-di(4-pyridyl)ethylene (BPE), which makes silver nanoisland films promising for biosensor applications. Additionally, in our experiments, we registered for the first time that silver nanoparticles formed in the bulk of the samples dissolved after exposing to PBS, while nanoislands on the glass surface stayed unchanged. We associate this phenomenon with the interaction of ions contained in PBS solution with silver, which results in the shift of corresponding chemical equilibrium.
format	article
author	Alexey Skvortsov Ekaterina Babich Alexey Redkov Andrey Lipovskii Valentina Zhurikhina
author_facet	Alexey Skvortsov Ekaterina Babich Alexey Redkov Andrey Lipovskii Valentina Zhurikhina
author_sort	Alexey Skvortsov
title	Stable in Biocompatible Buffers Silver Nanoisland Films for SERS
title_short	Stable in Biocompatible Buffers Silver Nanoisland Films for SERS
title_full	Stable in Biocompatible Buffers Silver Nanoisland Films for SERS
title_fullStr	Stable in Biocompatible Buffers Silver Nanoisland Films for SERS
title_full_unstemmed	Stable in Biocompatible Buffers Silver Nanoisland Films for SERS
title_sort	stable in biocompatible buffers silver nanoisland films for sers
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/c78aaa2e933e4704aa419228296dcd78
work_keys_str_mv	AT alexeyskvortsov stableinbiocompatiblebufferssilvernanoislandfilmsforsers AT ekaterinababich stableinbiocompatiblebufferssilvernanoislandfilmsforsers AT alexeyredkov stableinbiocompatiblebufferssilvernanoislandfilmsforsers AT andreylipovskii stableinbiocompatiblebufferssilvernanoislandfilmsforsers AT valentinazhurikhina stableinbiocompatiblebufferssilvernanoislandfilmsforsers
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Stable in Biocompatible Buffers Silver Nanoisland Films for SERS

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