Cost Effective Silver Nanowire-Decorated Graphene Paper for Drop-On SERS Biodetection.

ABSTRACT: The use of SERS for real-world bioanalytical applications represents a concrete opportunity, which, however, is being largely delayed by the inadequacy of existing substrates used to collect SERS spectra. In particular, the main bottleneck is their poor usability, as in the case of unsupported noble metal colloidal nanoparticles or because of the need for complex or highly specialized fabrication procedures, especially in view of a large-scale commercial diffusion. In this work, we introduce a graphene paper-supported plasmonic substrate for biodetection as obtained by a simple and rapid aerosol deposition patterning of silver nanowires. This substrate is compatible with the analysis of small (2 μL) analyte drops, providing stable SERS signals at sub-millimolar concentration and a detectio

SUBMITTER: Amicucci C 

PROVIDER: S-EPMC8229787 | biostudies-literature | 2021 Jun

REPOSITORIES: biostudies-literature