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Updated: Dec 9, 2025

Rapid Nanoprobe Signal Enhancement by In Situ Gold Nanoparticle Synthesis
Published on: March 7, 2018
Uniformly distributed ruthenium nanocrystals as highly efficient peroxidase for hydrogen peroxide colorimetric
Shiya Feng1, Mei Ming, Mingzhu Wang
1Chongqing Key Laboratory of Inorganic Functional Materials, College of Chemistry, Chongqing Normal University, Chongqing 401331, China. hedaiping@126.com jphdp868@126.com.
Abstract:
Here, we report highly dispersed small ruthenium nanoparticles (NPs) anchored onto a porous carbon (Ru/PC) with a clean catalytic surface and explore their excellent peroxidase-like activity for 3,3',5,5'-tetramethylbenzidine oxidation mediated by H2O2, which allows sensitive colorimetric detection of H2O2 with a low detection limit of 3.8 μM. Moreover, it is also found that the Ru/PC has a high nitroreductase-like activity for 4-nitroaniline reduction triggered by NaBH4.
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