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Impedimetric Aptasensor with Femtomolar Sensitivity Based on the Enlargement of Surface-Charged Gold Nanoparticles

✍ Scribed by Deng, Chunyan; Chen, Jinhua; Nie, Zhou; Wang, Mengdong; Chu, Xiaochen; Chen, Xiaoli; Xiao, Xilin; Lei, Chunyang; Yao, Shouzhuo

Book ID
120607884
Publisher
American Chemical Society
Year
2009
Tongue
English
Weight
394 KB
Volume
81
Category
Article
ISSN
0003-2700

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✍ Etery Sharon; Ronit Freeman; Ran Tel-Vered; Itamar Willner πŸ“‚ Article πŸ“… 2009 πŸ› John Wiley and Sons 🌐 English βš– 246 KB

## Abstract Two electrical methods (Faradaic impedance spectroscopy and ion‐sensitive field‐effect transistor (ISFET)) are applied to sense aptamer‐substrate complexes. The methods utilize anticocaine aptamer fragments that self‐assemble, in the presence of cocaine, to a supramolecular aptamer frag