A highly sensitive gold nanoparticle-based colorimetric probe for pyrophosphate using a competition assay approach.

Sudeok Kim, Min Sik Eom, Seung Kyung Kim, Seong Hyeok Seo, Min Su Han

Department of Chemistry, Chung-Ang University, Seoul 156-756, Republic of Korea.

Chemical communications (Cambridge, England) 2013 Jan 7

filter terms:

In this study, a mixture of [Zn(2)(1,3-bis[bis(2-pyridylmethyl)aminomethyl]benzene)](4+) ([Zn(2)(BBPAB)](4+)) and 11-mercaptoundecylphosphoric acid functionalized gold nanoparticles (Phos-AuNPs) is shown to be a highly sensitive colorimetric probe that can easily detect pyrophosphate (PPi) at less than 200 nM with the naked eye.

Citation

Sudeok Kim, Min Sik Eom, Seung Kyung Kim, Seong Hyeok Seo, Min Su Han. A highly sensitive gold nanoparticle-based colorimetric probe for pyrophosphate using a competition assay approach. Chemical communications (Cambridge, England). 2013 Jan 7;49(2):152-4