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Chen M, Ao W, Bai J, Li P, Wei W, Pang S, Yang X. Dual-emission fluorescent nanoprobe based on Ag nanoclusters for sensitive detection of Cu(II). NANOTECHNOLOGY 2022; 33:345501. [PMID: 35576900 DOI: 10.1088/1361-6528/ac6ff1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Accepted: 05/15/2022] [Indexed: 06/15/2023]
Abstract
Noble metal nanoclusters have attracted much attention because of their excellent fluorescence properties. In this work, we demonstrated a dual-emission fluorescent nanocomposite based on silver nanoclusters. First, we synthesized positively charged His-AgNCs, which emits intense blue light, and then Ag nanoclusters with stable red emission were synthesized using DHLA as the ligand. Thus a dual-emission fluorescent nanoprobe was successfully obtained through electrostatic self-assembly, with the advantages of good water solubility and excellent stability. Based on the intensity ratio of the two emission peaks, the nanoprobe can be used for selective and sensitive detection of copper ions, and presents a good linear relationship within a certain concentration range. In addition, we also designed a polymer film, and our dual-emission nanoprobe was successfully loaded onto it, which means that the visual detection of copper ions is possible. This indicates that our dual-emission fluorescent nanoprobe has potential application prospects in environmental analysis, medical diagnosis, biological detection, etc.
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Affiliation(s)
- Ming Chen
- School of Chemical Engineering, Advanced Institute of Materials Science, Changchun University of Technology, Changchun, 130012, People's Republic of China
| | - Wei Ao
- School of Chemical Engineering, Advanced Institute of Materials Science, Changchun University of Technology, Changchun, 130012, People's Republic of China
| | - Jinna Bai
- School of Chemical Engineering, Advanced Institute of Materials Science, Changchun University of Technology, Changchun, 130012, People's Republic of China
| | - Pengjun Li
- School of Chemical Engineering, Advanced Institute of Materials Science, Changchun University of Technology, Changchun, 130012, People's Republic of China
| | - Wei Wei
- School of Chemical Engineering, Advanced Institute of Materials Science, Changchun University of Technology, Changchun, 130012, People's Republic of China
| | - Shujie Pang
- School of Chemical Engineering, Advanced Institute of Materials Science, Changchun University of Technology, Changchun, 130012, People's Republic of China
| | - Xudong Yang
- School of Chemical Engineering, Advanced Institute of Materials Science, Changchun University of Technology, Changchun, 130012, People's Republic of China
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