| Literature DB >> 35106615 |
Jiang Wu1, Runyang Li1, Siyu Liu2.
Abstract
In this work, the biomolecule glutathione was used to prepare cyan fluorescent carbon dots (GSH@CDs) by a hydrothermal method. The GSH@CDs were adopted as the scaffolds to synthesize fluorescent gold nanoclusters (GSH@CDs-Au NCs) with two independent emission peaks at 430 nm and 700 nm. A fluorescent method for the Cu2+ and Ag+ ion assay was established based on the fluorescence quenching or enhancement at 700 nm of GSH@CDs-Au NCs. The fluorescent test strips were successfully prepared for visual detection of Cu2+ ions and Ag+ ions based on GSH@CDs-Au NCs. In addition, GSH@CDs-Au NCs were found to possess well peroxidase-like activity.Entities:
Keywords: Ag+; Carbon dots; Cu2+; Gold nanoclusters; Ratiometric
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Year: 2022 PMID： 35106615 DOI： 10.1007/s00216-022-03930-x
Source DB: PubMed Journal: Anal Bioanal Chem ISSN： 1618-2642 Impact factor: 4.142