Instrument-free quantitative gold nanoparticle-based liquid-phase colorimetric assays for use in resource-poor environments. 2017

Huili Wang, and Yun Zhang, and Rongxing Li, and Jinfang Nie, and Afaf H El-Sagheer, and Tom Brown, and Zhaoying Liu, and Wencheng Xiao
Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials, College of Chemistry and Bioengineering, Guilin University of Technology, 12 Jiangan Road, Guilin 541004, China. zy@glut.edu.cn Niejinfang@glut.edu.cn.

This work describes a new class of gold nanoparticle-based liquid-phase colorimetric assay (GNP-LPCA) termed as two dimensional (2D) GNP-LPCA. Its utility is demonstrated with the development of an aptamer-based 2D GNP-LPCA for simple, low-cost, sensitive, specific, and quantitative detection of adenosine as a model analyte in buffer and human serum samples with the naked eye.

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