@article{Hong2023, 
author = {Chengyi Hong and Lingling Chen and Jiayi Huang and Yunling Shen and Hongfen Yang and Zhiyong Huang and Ren Cai and Weihong Tan},
title = {Gold nanoparticle-decorated MoSe2 nanosheets as highly effective peroxidase-like nanozymes for total antioxidant capacity assay},
year = {2023},
journal = {Nano Research},
volume = {16},
number = {5},
pages = {7180-7186},
keywords = {nanozymes, peroxidase mimics, Au@MoSe2 nanostructures, total antioxidant capacity assay},
url = {https://www.sciopen.com/article/10.1007/s12274-022-5328-9},
doi = {10.1007/s12274-022-5328-9},
abstract = {A visual colorimetric detection strategy is reported for total antioxidant capacity (TAC) assay by using 3,3',5,5'-tetramethylbenzidine (TMB) oxidation as chromogenic substrate based on gold nanoparticle-decorated MoSe2 nanosheets (Au@MoSe2). Au@MoSe2 nanostructures exhibit high peroxidase-like activity and can catalyze H2O2 to oxidize TMB. Based on inhibition effect of ascorbic acid (AA) on TMB oxidation, a facile and sensitive colorimetric method was developed for AA detection. Under optimal conditions, the proposed method showed a sensitivity for AA in a concentration range from 2 to 120 μM and limit of detection was 0.41 μM. Furthermore, the method was employed for TAC assay in actual samples, including commercial beverages and vitamin C tablets. This work represents a model in nanostructure design and will lead to further development of TAC assay in evaluation of antioxidant food quality.}
}