Issue 46, 2015

In situ polydopamine-assisted deposition of silver nanoparticles on a two dimensional support as an inexpensive and highly efficient SERS substrate

Abstract

Fabrication of cheap and disposable substrates with high surface enhanced Raman scattering (SERS) effects is essential for practical SERS application. In this study, versatile substrates (silica plate, polyethylene film and filter paper) were simply modified with polydopamine followed by in situ silver nanoparticle deposition to fabricate a two-dimensional SERS substrate. This kind of SERS substrate has good reproducibility (relative standard deviation (RSD) <8% (spot-to-spot) and <12% (batch-to-batch)) and stability (>89% after 2 months). Using 4-mercaptopyridine (4-Mpy) as the probe molecule, the enhancement factor could reach 107. This facile and general approach can be easily scaled up to fabricate cheap, easily portable, flexible and disposable SERS substrates, which can be applied for on-site SERS detection.

Graphical abstract: In situ polydopamine-assisted deposition of silver nanoparticles on a two dimensional support as an inexpensive and highly efficient SERS substrate

Supplementary files

Article information

Article type
Paper
Submitted
26 feb 2015
Accepted
13 apr 2015
First published
16 apr 2015

RSC Adv., 2015,5, 36368-36373

In situ polydopamine-assisted deposition of silver nanoparticles on a two dimensional support as an inexpensive and highly efficient SERS substrate

P. Wang, Y. Zhou, Y. Wen, F. Wang and H. Yang, RSC Adv., 2015, 5, 36368 DOI: 10.1039/C5RA03481G

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