Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 6, Issue 2, Pages 757-762Publisher
AMER CHEMICAL SOC
DOI: 10.1021/am4049354
Keywords
salt-responsive; luminescent hydrogel; tetraphenylethylene (TPE); aggregation-induced emission (AIE); gelation-enhanced emission
Funding
- State High-Tech Development Plan [2012AA020804]
- National Natural Science Foundation of China [30970784, 31170873, 81171455]
- National Key Basic Research Program of China [2009CB930200]
- National Distinguished Young Scholars grant [31225009]
- National Natural Science Foundation of China
- Chinese Academy of Sciences (CAS) Hundred Talents Program [07165111ZX]
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Tetraphenylethylene (TPE), an archetypal luminogen with aggregation-induced emission (ME), was grafted to a salt-responsive peptide to yield a yet luminescent hydrogelator. After testing different parameters, we found that only in the presence of salt rather than temperature, pH, and solvent, did the monodisperse hydrogelators self-assemble into a hydrogel network with bright emission turned on. The induced luminescence was a dynamic change and enabled real time monitoring of hydrogel formation. Grating AIE molecules to stimuli-responsive peptides is a promising approach for the development of self-revealing soft materials for biological applications.
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