金纳米粒子在硅酸盐玻璃表面的还原合成及其生化传感器应用。
Reductive surface synthesis of gold nanoparticles on silicate glass and their biochemical sensor applications.
机构信息
Environmental Science and Engineering, Yangzhou University, 225-009 Yangzhou, China.
出版信息
Biomicrofluidics. 2012 Dec 10;6(4):44111. doi: 10.1063/1.4769780. eCollection 2012.
Abstract
Gold nanoparticles (Au NPs) were directly synthesized on the surface of polyvinylsilazane (PVSZ, -[(vinyl)SiH-NH2]-) without use of extra reductive additives. The reductive Si-H functional groups on the surface of cured PVSZ acted as surface bound reducing agents to form gold metal when contacted with an aqueous Au precursor (HAuCl4) solution, leading to formation of Au NPs adhered to silicate glass surface. The Au NPs-silicate platforms were preliminarily tested to detect Rhodamine B (1 μM) by surface enhanced Raman scattering. Furthermore, gold microelectrode obtained by post-chemical plating was used as an integrated amperometric detection element in the polydimethylsilane-glass hybrid microfluidic chip.
摘要
金纳米粒子 (Au NPs) 被直接合成在聚硅氮烷 (PVSZ，-[(乙烯基)SiH-NH2]-) 的表面上，而无需使用额外的还原剂。在与水相金前体 (HAuCl4) 溶液接触时，固化 PVSZ 表面上的还原 Si-H 官能团充当表面结合还原剂，形成附着在硅酸盐玻璃表面上的金纳米颗粒。Au NPs-硅酸盐平台被初步测试用于通过表面增强拉曼散射检测罗丹明 B（1 μM）。此外，通过化学镀后获得的金微电极被用作聚二甲基硅氧烷-玻璃混合微流控芯片中的集成安培检测元件。
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