High peroxidase-mimicking activity of gold@platinum bimetallic nanoparticle-supported molybdenum disulfide nanohybrids for the selective colorimetric analysis of cysteine
Ling Wan, Liquan Wu, Shao Su, Dan Zhu, Jie Chao, Lianhui Wang
Abstract
-Au@Pt) with high peroxidase-mimicking activity, which were used to construct a colorimetric sensor for cysteine (Cys) detection. Interestingly, this sensor can efficiently distinguish Cys from homocysteine (Hcy), glutathione (GSH) and 19 other amino acids with high sensitivity. As expected, the colorimetric sensor can determine the Cys content in Cys supplement tablets due to its high stability and repeatability. Finally, the detection mechanism was studied.
Topics & Concepts
Bimetallic stripMolybdenum disulfidePlatinumCysteineColloidal goldMolybdenumChemistryNanoparticlePlatinum nanoparticlesDisulfide bondThiolPeroxidaseInorganic chemistryNanotechnologyMaterials scienceOrganic chemistryCatalysisEnzymeBiochemistryMetallurgyAdvanced Nanomaterials in CatalysisAdvanced biosensing and bioanalysis techniquesNanocluster Synthesis and Applications