微透析
化学
三元运算
拉曼光谱
纳米颗粒
基质(水族馆)
色谱法
分析化学(期刊)
纳米技术
材料科学
组合化学
计算机科学
光学
生物化学
海洋学
物理
地质学
程序设计语言
细胞外
作者
Lu Shi,Mengmeng Liu,Limin Zhang,Yang Tian
标识
DOI:10.1002/anie.202117125
摘要
Abstract For the reliable determination of trace chemicals in the brain, we created a SERS platform based on a functionalized AuNPs array formed at a liquid/liquid interface in a uniform fashion over a large substrate area through ternary regulations for real‐time quantification of trace norepinephrine (NE). The rigid molecule, 4‐(thiophen‐3‐ylethynyl)‐benzaldehyde (RP1) was designed and co‐assembled at AuNPs with 4‐mercaptophenylboronic acid (MPBA) to chemically define NE via dual recognition. Meanwhile, the rigid structure assembly of RP1 and MPBA efficiently fixed the interparticle gap, guaranteeing reproducible SERS analysis. Furthermore, the Raman peak of C≡C group in the silent region was taken as a response element to further improve the accuracy. Combined with microdialysis, this SERS platform was developed for in‐the‐field testing of NE in rat brain microdialysates following anxiety.
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