(CdSe)ZnS quantum dots and organophosphorus hydrolase bioconjugate as biosensors for detection of paraoxon

Authors :: Xiaojun Ji
DeFrank, Joseph J.
Jiayin Zheng
Leblanc, Roger M.
Jianmin Xu
Rastogi, Vipin K.
Tu-Chen Cheng
Source :: Journal of Physical Chemistry B. March 10, 2005, Vol. 109 Issue 9, 3793-3799
Publication Year :: 2005
Abstract: A novel biosensor for the detection of the paraoxon, based on (CdSe)ZnS core-shell quantum dots (QDs) and an organophosphorus hydrolase (OPH) biconjugate, was reported. The OPH was coupled to (CdSe)ZnS core-shell QDs through electrostatic interaction between negatively charged QDs surfaces and the positively charged protein side chain and ending groups.

Subjects :: Hydrolases -- Research
Selenium compounds -- Chemical properties
Zinc compounds -- Chemical properties
Enzymes -- Research
Chemicals, plastics and rubber industries

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