Ag nanocubes monolayer-modified PDMS as flexible SERS substrates for pesticides sensing

Autor: Dacheng Xia, Panpan Jiang, Zhiwei Cai, Rui Zhou, Bo Tu, Nan Gao, Gang Chang, Hanping He, Yunbin He
Rok vydání: 2022
Předmět:
Zdroj: Microchimica Acta. 189
ISSN: 1436-5073
0026-3672
Popis: A new approach is presented to fabricate flexible surface-enhanced Raman scattering (SERS) substrate of Ag nanocubes monolayer-modified polydimethylsiloxane (Ag NCs/PDMS) through a powerful three-phase interface self-assemble method. The morphologies and crystal structures were characterized by scanning electron microscopy and X-ray diffraction. The self-assembled Ag NCs/PDMS substrate exhibited high SERS activity and good signal homogeneity, which was successfully used for quantitative detection of thiram; the detection limit reached 10 ng/mL, and the linear range is 10-1000 ng/mL. Furthermore, the flexible SERS substrates were successfully employed to detect thiram residues on factual apple samples, and trace amount (1 ng/cm
Databáze: OpenAIRE
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