Microcantilever Pb2 + Sensor Using Re-Supramolecular Functionalization with Crown-Ether-Like Recognition Sites
作者： Shih-Ming Lai , Cheng-Yen Wu , Kai-Sheng Hsu , Chi-Chuan Wang , Hsu-Cheng Chiang
DOI: 10.1149/1.2789284
关键词:
摘要: Microcantilevers with surface functionalization have provided the possibility of chemicomechanical transductions for sensing applications. In this article, a newly Re-based supramolecule (metallacycle) comprised large cavity structure and crown-ether-like recognition sites was first used as materials Pb 2+ detection. From graft metallacycle onto self-assembled monolayer modified microcantilever surface, configurations adequate wetting property, strong covalent immobilization, selective adsorption were obtained. The results also revealed that metallacycle-functionalized exhibited excellent performances high sensitivity, low detection limit, well wide detectable regime ranging from 10 -7 to 0.1 M.
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