[Analytical Chemistry] Flexible and Adhesive SERS Active Tape for Rapid Detection of Pesticide Residues in Fruits and Vegetables
作者：Jiaming Chen, Youju Huang, Palanisamy Kannan, Zhenyu Lin, Jiawei Zhang, Longhua Guo*, Tao Chen*
關(guān)鍵字：Flexible SERS Substrate; Au NPs; Adhesive Tape; Pesticide Residues; SERS Analysis
論文來(lái)源：期刊
具體來(lái)源：Analytical Chemistry, 2016, 88, 2149-2155
發(fā)表時(shí)間：2016年
The efficient extraction of targets from complex surfaces is vital for technological
applications ranging from environmental pollutant monitoring to analysis of explosive
traces and pesticide residues. In our present study, we proposed a
proof-of-concept surface enhance Raman scattering (SERS) active substrate
serving directly to the rapid extraction and detection of target molecules. The
novel substrate was constructed by decorating the commercial tape with
colloidal gold nanoparticles (Au NPs), which simultaneously provides SERS
activity and “sticky” of adhesive. The utility of SERS tape was demonstrated by
direct extracting pesticide residues in fruits and vegetables via a simple and viable “paste and peel
off” approach. The obtained strong and easily distinguishable SERS signals
allow us to detect various pesticide residues such as parathion-methyl, thiram
and chlorpyrifos in the real samples with complex surfaces including green
vegetable, cucumber, orange and apple.