Journal
JOURNAL OF MATERIALS CHEMISTRY C
Volume 6, Issue 42, Pages 11261-11265Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c8tc03711f
Keywords
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Funding
- National Natural Science Foundation of China [21788102, 51673118, 21673082]
- Natural Science Foundation of Guangdong Province [2016A030312002]
- Science & Technology Program of Guangzhou [201804020027, 201804010218]
- Science & Technology Plan of Shenzhen [JCYJ20160428150429072]
- Fundamental Research Funds for the Central Universities [2017JQ013]
- Innovation and Technology Commission of Hong Kong [ITC-CNERC14SC01]
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Multi-functional fluorescent probes have attracted more interest recently. Herein, two simple fluorescent probes (FAS and DPAS) from AIEgens with the ESIPT process of salicylaldehyde Schiff-base structures are developed. The aggregates of FAS and DPAS exhibit good selectivity and sensitivity towards Cu2+ in aqueous media without any water-miscible organic solutions as buffers. Their larger association constants and appropriate hydrophilic and hydrophobic properties play key roles in achieving lower detection limits. Based on their fluorescence on/off processes in the presence or absence of Hg2+, the composite probes are further prepared.
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