分析测试学报2025，Vol.44Issue(3)：411-419,9.DOI:10.12452/j.fxcsxb.240617135
亲水衬底辅助界面自组装方法制备柔性透明Au NTOH@PDMS薄膜用于结晶紫的SERS原位检测
Hydrophilic-substrate-assisted Fabrication of Flexible and Transparent Au NTOH@PDMS Film for SERS In-situ Detection of Crystal Violet
摘要
Abstract
This article presented a facile fabrication process for polydimethylsiloxane(PDMS)composite gold nanotris-octahedra(Au NTOH)for a flexible SERS sensor with high sensitivity.Specifically,Au NTOH with excellent SERS behaviors was synthesized using a seed-mediated growth method and the dimensions of the Au NTOH was easily tuned.In addition,the influence of size on the SERS performance of their monolayers was systematically investigated,and the Au NTOH with the size of 61 nm possessed the best SERS performance.Importantly,a hydrophilic-substrate-assisted interfacial self-assembled monolayer transfer technique was proposed to transfer Au NTOH onto PDMS films,resulting in forming flexible and transparent Au NTOH@PDMS substrates.Furthermore,the excellent signal homoge-neity of this substrate was demonstrated and the sensitivity was verified by a measurement of crystal violet(CV)as low as 1×10-8 mol/L.As a result,this SERS sensor is progressing for applying in the identification of trace contaminants in broad fields.关键词
金纳米二十四面体(Au NTOH)/PDMS/界面自组装/SERS/结晶紫Key words
Au NTOH/PDMS/interfacial self-assembly/SERS/crystal violet分类
化学引用本文复制引用
张鑫桐,刘鸿宇,董明远,王利,林翔..亲水衬底辅助界面自组装方法制备柔性透明Au NTOH@PDMS薄膜用于结晶紫的SERS原位检测[J].分析测试学报,2025,44(3):411-419,9.基金项目
The National Natural Science Foundation of China(12274055) （12274055）
the Fundamental Research Funds for the Central Universities(04442024072) （04442024072）
the Training Program of Innovation and Entrepreneurship for Undergraduates in Dalian Minzu University(202312026063) （202312026063）
