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Hydrophilic-hydrophobic silver nanowire-paper based SERS substrate for in-situ detection of furazolidone under various environments

Authors :
Xiuting Li
Bin Li
Chenjie Gu
Dong Chen
Huimin Sun
Ziyang Hu
Jun Wang
Tao Jiang
Xingfei Zhou
Source :
Applied Surface Science. 556:149748
Publication Year :
2021
Publisher :
Elsevier BV, 2021.

Abstract

As a typical membrane matrix with attractive flexibility, paper has exhibited great feasibility to serve as surface-enhanced Raman scattering (SERS) substrate in the environmental monitoring and surveillance. In this research, we have designed and fabricated a distinctive hydrophilic-hydrophobic SERS substrate utilizing several ordinary papers loaded with Ag nanowires (Ag NWs). Remarkable SERS activities with an enhancement factor (EF) up to 2.63 × 106 was successfully achieved in the assembly Ag NWs with the optimal amount of nanotips and overlaps. The hydrophilic-hydrophobic strategy could contribute to anchoring microdroplets and thus enrich analytes to improve the homogeneity of substrate with a low relative standard deviation of 10.6%. Furthermore, the sophisticated SERS substrate was also applied in the in-situ detection of trace furazolidone on fish under the interference of malachite green and the reliable recovery rates were demonstrated as well.

Details

ISSN :
01694332
Volume :
556
Database :
OpenAIRE
Journal :
Applied Surface Science
Accession number :
edsair.doi...........1f01d400eca8b22ec7e3aa0a128f88c0