@article{Nguyen Thi_Chu_Nguyen_Nguyen_Tran_2020, title={Optimization and Characterization of Paper-based SERS Substrates for Detection of Melamine}, volume={30}, url={https://vjs.ac.vn/index.php/cip/article/view/14832}, DOI={10.15625/0868-3166/30/0/14832}, abstractNote={<p>A flexible low-cost paper-based surface enhanced Raman <br />scattering (SERS) substrate was successfully manufactured by a direct <br />chemical reduction of silver nanoparticles (AgNPs) onto a common <br />commercially available filter paper. Characterization of fabricated <br />paper-based SERS substrate and the influences of the silver nitrate <br />concentration, type of paper on SERS signal were systematically <br />investigated. In order to fabricate SERS substrates with the highest <br />quality, a suitable one from four different types of filter papers was <br />chosen. The prepared SERS substrates have capability for detecting food <br />toxic chemicals. The test of detecting melamine in aqueous solution was <br />successfully demonstrated with the limit of detection for melamine is 10<em><sup>-7</sup></em>M<em>.</em></p>}, number={4}, journal={Communications in Physics}, author={Nguyen Thi, Bich Ngoc and Chu, Viet Ha and Nguyen, Thi Thuy and Nguyen, Trong Nghia and Tran, Hong Nhung}, year={2020}, month={Oct.}, pages={345} }