Caging metal ions with visible light-responsive nanopolymersomes.
Caging metal ions with visible light-responsive nanopolymersomes.
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DOI：
10.1021/la5036689
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发表时间：
2015-01-20
期刊：
影响因子：
--
通讯作者：
Dmochowski IJ
中科院分区：
文献类型：
--
作者：
Griepenburg JC;Sood N;Vargo KB;Williams D;Rawson J;Therien MJ;Hammer DA;Dmochowski IJ
Polymersomes are bilayer vesicles that self-assemble from amphiphilic diblock copolymers, and provide an attractive system for the delivery of biological and nonbiological molecules due to their environmental compatibility, mechanical stability, synthetic tunability, large aqueous core, and hyperthick hydrophobic membrane. Herein, we report a nanoscale photoresponsive polymersome system featuring a meso-to-meso ethyne-bridged bis[(porphinato)zinc] (PZn2) fluorophore hydrophobic membrane solute and dextran in the aqueous core. Upon 488 nm irradiation in solution or in microinjected zebrafish embryos, the polymersomes underwent deformation, as monitored by a characteristic red-shifted PZn2 emission spectrum and confirmed by cryo-TEM. The versatility of this system was demonstrated through the encapsulation and photorelease of a fluorophore (FITC), as well as two different metal ions, Zn2+ and Ca2+.
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