Photo-controlled Zn(2+) release system with dual binding-sites and turn-on fluorescence.
A phototriggered Zn-release system with dual binding-sites and turn-on fluorescence has been developed by employing a molecule with two Schiff base units as a ligand. It is found that the ligand with two Schiff base units can bind with two Zn(2+), and the bound Zn(2+) can be released completely when the Schiff base is converted into bi-benzoxazole when phototriggered. During the conversion of the Schiff base into benzoxazole, the turn-on fluorescence was detected, which provides a convenient method to monitor the process of phototrigger release. Besides, it is also found that the amount of released Zn(2+) depends on the exposure or irradiation time, which enables the possibility to manipulate the amount of Zn(2+)-release via controlling irradiation time.
Zhang
Xu
X
Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, The Chinese Academy of Sciences, Beijing, 100190, China.
Chen
Yi
Y
D000042:Absorption; D001665:Binding Sites; D006863:Hydrogen-Ion Concentration; D019800:Phenol / Q000737:chemistry; D055668:Photochemical Processes; D013050:Spectrometry, Fluorescence; D015032:Zinc / Q000737:chemistry*
D019800:Phenol; D015032:Zinc