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Chem Commun (Camb). 2019 Apr 30;55(36):5279-5282. doi: 10.1039/c9cc01451a.

Light-activated "cycle-reversible intramolecular charge transfer" fluorescent probe: monitoring of pHi trace change induced by UV light in programmed cell death.

Author information

1
Henan Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Key Laboratory of Green Chemical Media and Reactions, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering Institution, Henan Normal University, Xinxiang 453007, China. zhanghua1106@163.com.

Abstract

Under the synergistic effects of protonation and deprotonation, a light-activated fluorescent probe (UV-SP) exhibited "cycle-reversible intramolecular charge transfer (ICT)" for different pH after activation by UV light, resulting in emission of multiple ratio fluorescent signals (FI563/FI595 and FI664/FI595). Based on these kinds of response signals, UV-SP can specifically monitor the cycle-reversible trace change of intracellular pH caused by UV radiation. More importantly, according to the stable and invariant multiple ratio fluorescent signals, UV-SP can sort cells entering programmed death.

PMID:
30993268
DOI:
10.1039/c9cc01451a
[Indexed for MEDLINE]

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