Browsing by Author "Huang, Jing-Wen"

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Au-Pt-Pd spherically self-assembled nano-sieves as SERS sensors
(2020-11-30)
Chang, Fang-Ching
;
Huang, Jing-Wen
;
Chen, Chun-Hua
;
材料科學與工程學系
;
Department of Materials Science and Engineering
A series of unique granular and petaloid Au-capped Pt-Pd spherically-assembled nano-sieves (Au-PP SANSs) - with diameters smaller than 100 nm, combining quasi-regularly integrated surface-enhanced Raman scattering (SERS) active nanocrystals and a functional amphiphilic organic frame - have been successfully synthesized through a facile chemical route with a temperature-sensitive triblock copolymer soft template. Further, it has been demonstrated that they are potential candidates for developing highly-selective molecule-sieve assisted SERS sensors. The combination of the superposed inorganic and organic dual-core shell structures in Au-PP SANSs acts as a molecular sieve, which plays a crucial role in the promising chemical selectivity, which helps distinguish polar malachite green oxalate salt and non-polar thiabendazole molecules. (C) 2020 Elsevier B.V. All rights reserved.