Significant Enhancement of Two-Photon Excited Fluorescence in Water-Soluble Triphenylamine-Based All-Organic Compounds

被引:3
作者
Gong, Yu [1 ]
Bi, Xiangdong [5 ]
Chen, Nikki [2 ]
Forconi, Marcello [2 ]
Kuthirummal, Narayanan [1 ]
Teklu, Alem [1 ]
Gao, Bo [4 ]
Koenemann, Jacob
Harris, Nico [1 ]
Brennan, Christian [1 ]
Thomas, Marisa [5 ]
Barnes, Taylor [5 ]
Hu, Ming [3 ]
机构
[1] Coll Charleston, Dept Phys & Astron, Charleston, SC 29424 USA
[2] Coll Charleston, Dept Chem & Biochem, Charleston, SC 29424 USA
[3] Univ South Carolina, Dept Mech Engn, Columbia, SC 29208 USA
[4] City Univ New York, Hunter Coll, Dept Phys & Astron, New York, NY 10065 USA
[5] Charleston Southern Univ, Dept Phys Sci, Charleston, SC 29485 USA
关键词
LIVE-CELL; CHARGE-TRANSFER; UP-CONVERSION; ABSORPTION; PROBES; FRAMEWORK; LYSOSOME; DYNAMICS; THERAPY;
D O I
10.1021/acs.jpcb.2c03514
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Understanding water-soluble and environmentally friendly two-photon absorption (TPA) molecules benefits the design of superior organic complexes for biomedical, illumination, and display applications. In this work, we designed two triphenylamine-based all-organic compounds and explored the mechanism of enhanced TP fluorescence in water solutions for potential applications. Experimentally, we showed that adding protein into our TPA molecule solution can drastically boost the TP fluorescence. Numerical simulations reveal that the TPA molecules prefer to dock inside the protein complex. We hypothesize that the interaction between our triphenylaminebased all-organic compounds and water molecules lead to non radiative decay processes, which prevent strong TP fluorescence in the water solution. Therefore, the protection by, for example, protein molecules from such interactions can be a universal strategy for superior functioning of organic TPA molecules. Further experiments and numerical simulations support our hypothesis. The present study may facilitate the design of superior water-soluble and environmentally friendly superior organic complexes.
引用
收藏
页码:5513 / 5522
页数:10
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