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Sheng Wang, Prof. Dr. Wei Chen, Prof. Dr. Ai-Lin Liu, Lei Hong, Hao-Hua Deng and Prof. Xin-Hua Lin Comparison of the Peroxidase-Like Activity of Unmodified, Amino-Modified, and Citrate-Capped Gold Nanoparticles ChemPhysChem 13

Version of Record online: 2 MAR 2012 | DOI: 10.1002/cphc.201100906

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Nanoparticle enzyme mimics: The higher peroxidase-like activity of unmodified Au nanoparticles (NPs) compared to amino-modified or citrate-capped Au nanoparticles (see picture) reveals a role of superficial Au atoms. Different catalytic activities of amino-modified and citrate-capped Au NPs toward peroxidase substrates TMB and ABTS show that charge characteristics also play an important part.

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