New post-processing method of preparing nanofibrous SERS substrates with a high density of silver nanoparticles

E. S. Prikhozhdenko, V. S. Atkin, B. V. Parakhonskiy, I. A. Rybkin, A. Lapanje, G. B. Sukhorukov, D. A. Gorin, A. M. Yashchenok

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

SERS enabling substrates with increased sensitivity, their manufacturing reproducibility and enhanced structural stability are highly demanded in SERS applications. Therefore our main aim was to elaborate a simple and inexpensive method of functionalization of electrospun chitosan nanofibers by using silver nanoparticles (AgNP). For that purpose we established a protocol where we were able to control the density of AgNP on the surfaces of nanofibers, and thus electromagnetic hotspots, simply by variation of Tollens' reagent. By webbing of such fibers we were able to prepare films that were enabling SERS either of solutes or macromolecular structures such as bacterial cells. Especially, to detect bacterial cells we established two approaches of immobilisation of cells within the films, which enabled their detection with enhancement of sensitivity by a factor of 105 and an average of 25% spot-to-spot variation.

Original languageEnglish
Pages (from-to)84505-84511
Number of pages7
JournalRSC Advances
Volume6
Issue number87
DOIs
Publication statusPublished - 2016
Externally publishedYes

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Nanofibers
Silver
Nanoparticles
Chitosan
Substrates
Processing
Fibers

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Chemistry(all)

Cite this

Prikhozhdenko, E. S., Atkin, V. S., Parakhonskiy, B. V., Rybkin, I. A., Lapanje, A., Sukhorukov, G. B., ... Yashchenok, A. M. (2016). New post-processing method of preparing nanofibrous SERS substrates with a high density of silver nanoparticles. RSC Advances, 6(87), 84505-84511. https://doi.org/10.1039/c6ra18636j

New post-processing method of preparing nanofibrous SERS substrates with a high density of silver nanoparticles. / Prikhozhdenko, E. S.; Atkin, V. S.; Parakhonskiy, B. V.; Rybkin, I. A.; Lapanje, A.; Sukhorukov, G. B.; Gorin, D. A.; Yashchenok, A. M.

In: RSC Advances, Vol. 6, No. 87, 2016, p. 84505-84511.

Research output: Contribution to journalArticle

Prikhozhdenko, ES, Atkin, VS, Parakhonskiy, BV, Rybkin, IA, Lapanje, A, Sukhorukov, GB, Gorin, DA & Yashchenok, AM 2016, 'New post-processing method of preparing nanofibrous SERS substrates with a high density of silver nanoparticles', RSC Advances, vol. 6, no. 87, pp. 84505-84511. https://doi.org/10.1039/c6ra18636j
Prikhozhdenko, E. S. ; Atkin, V. S. ; Parakhonskiy, B. V. ; Rybkin, I. A. ; Lapanje, A. ; Sukhorukov, G. B. ; Gorin, D. A. ; Yashchenok, A. M. / New post-processing method of preparing nanofibrous SERS substrates with a high density of silver nanoparticles. In: RSC Advances. 2016 ; Vol. 6, No. 87. pp. 84505-84511.
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