Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry and Environment, Beihang University, Beijing 100191, PR China.
Analyst. 2012 Sep 7;137(17):3925-8. doi: 10.1039/c2an35670h. Epub 2012 Jun 29.
We have developed a surface-enhanced Raman scattering (SERS) nanosensor firstly for Ag ions and Ag nanoparticles detection based on 2-mercaptoisonicotinic acid (2MNA)-functionalized Au nanoparticles. Ag(+) can coordinate with 2MNA resutling in a variation of its SERS spectrum, which is used as a criterion to determine Ag(+) in a solution. This sensor exhibits a detection limit no more than 25 nM and has a high selectivity against other metal ions. More importantly, it can be directly applied in real sample detection.
我们开发了一种基于 2-巯基异烟酸（2MNA）功能化的金纳米粒子的表面增强拉曼散射（SERS）纳米传感器，用于 Ag 离子和 Ag 纳米粒子的检测。Ag(+)可以与 2MNA 配位，导致其 SERS 光谱发生变化，可用于溶液中 Ag(+)的测定。该传感器的检测限不超过 25 nM，对其他金属离子具有很高的选择性。更重要的是，它可以直接应用于实际样品的检测。
