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Highly-branched plasmonic nanostructures are interesting substrates to be exploited in Surface- Enhanced Raman Scattering (SERS) detection, as sources of efficient Raman ‘‘hot-spots”. In this study, L-cysteine is proposed as reducing/capping agents for the production of Ag nanonets showing different morphologies by varying the synthesis conditions. Substrates are coupled to PDMS membranes and characterized by Raman spectroscopy using 4-MBA to define their SERS performance. Experimental evidences confirm that only the thinnest structures are able to guarantee significant SERS responses.

Cysteine-mediated synthesis of silver nanonets and their use for surface enhanced Raman scattering (SERS) / Nisticò, Roberto; Novara, Chiara; Chiadò, Alessandro; Rivolo, Paola; Giorgis, Fabrizio.. - In: MATERIALS LETTERS. - ISSN 0167-577X. - STAMPA. - 247:(2019), pp. 208-210. [10.1016/j.matlet.2019.03.121]

Cysteine-mediated synthesis of silver nanonets and their use for surface enhanced Raman scattering (SERS)

Nisticò, Roberto;Novara, Chiara;Chiadò, Alessandro;Rivolo, Paola;Giorgis, Fabrizio.
2019

Abstract

Highly-branched plasmonic nanostructures are interesting substrates to be exploited in Surface- Enhanced Raman Scattering (SERS) detection, as sources of efficient Raman ‘‘hot-spots”. In this study, L-cysteine is proposed as reducing/capping agents for the production of Ag nanonets showing different morphologies by varying the synthesis conditions. Substrates are coupled to PDMS membranes and characterized by Raman spectroscopy using 4-MBA to define their SERS performance. Experimental evidences confirm that only the thinnest structures are able to guarantee significant SERS responses.
2019
MATERIALS LETTERS
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11583/2737072
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