Investigation of Excited-State Photophysical Properties of Water-Soluble Gallium Corrole
| Autor: | Chu-Feng Liu, Yuan Li, Li-Li Wang, Wei-Qian Wang, Su-Hong Peng, Hai-Yang Liu, Xiao Ying, Fan Cheng, Xue Wang, Hui Wang, Zhen-Hua Liang, Liang-Nian Ji |
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| Rok vydání: | 2017 |
| Předmět: |
Chemistry
chemistry.chemical_element 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Photochemistry 01 natural sciences Fluorescence Toluene 0104 chemical sciences Surfaces Coatings and Films Electronic Optical and Magnetic Materials chemistry.chemical_compound Electron transfer General Energy Excited state Singlet state Physical and Theoretical Chemistry Absorption (chemistry) Corrole Gallium 0210 nano-technology |
| Zdroj: | The Journal of Physical Chemistry C. 121:12350-12357 |
| ISSN: | 1932-7455 1932-7447 |
| DOI: | 10.1021/acs.jpcc.7b00168 |
| Popis: | The photophysical properties of the excited states of the water-soluble gallium corrole (Ga(tpfc) (SO3Na)2) and fluorescence lifetime imaging in three kinds of living cell lines have been investigated using the steady-state and time-resolved spectroscopic techniques. In comparison with gallium corrole (Ga(tpfc) (py)) in six selected solvents, Ga(tpfc) (SO3Na)2 shows the much weaker emission and B-band absorption, and the Q-band absorption exhibits red-shift of about 15 nm, the fluorescence lifetime decreases, while the triplet lifetime increases. The internal transition time from the B-band to the Q-band of Ga(tpfc) (SO3Na)2 is similar to that of Ga(tpfc) (py) in toluene. The high polarity of the water has an important impact on the dynamics of the singlet and triplet states, which may result in efficient electron transfer to the oxygen. This observation has been confirmed by the EPR experiment. Without the aid of carrier proteins, Ga(tpfc) (SO3Na)2 can penetrate into three kinds of living cell lines: mou... |
| Databáze: | OpenAIRE |
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