Journal
CHEMICAL COMMUNICATIONS
Volume 58, Issue 82, Pages 11547-11550Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/d2cc04760h
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Funding
- National Natural Science Foundation of China [21977014]
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Two kinds of AIE-active fluorescent organic nanoparticles were designed and constructed as anti-counterfeiting photoresponsive materials. They exhibit different photooxidation behaviors upon UV light irradiation and can be used as anti-counterfeiting fluorescent hydrogel and ink.
Two kinds of AIE-active fluorescent organic nanoparticles were designed and constructed as anti-counterfeiting photoresponsive materials. One is fluorescent organic nanoparticles (TPELs) based on a self-assembly strategy, which were self-assembled from novel amphiphilic tetraphenylethylene (TPE) molecules decorated with a lactose moiety and different photoresponsive tags. The other is polymeric fluorescent organic nanoparticles (F-TPEs) derived from the nanoprecipitation strategy, which utilized pluronic copolymer F127 to encapsulate hydrophobic TPEs without lactosyl modifications. Upon UV light irradiation, these AIE-active materials exhibit different photooxidation behaviors in an aqueous solution to give cyan, orange and green fluorescence emissions, and they were successfully used as an anti-counterfeiting fluorescent hydrogel and ink.
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