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(A) Chemical structures change of caged-peptides after UV light irradiation. CYLE: carboxynitrobenzyl modified [Leu5]-enkephalin; N-MNVOC-LE N-(α-methyl-6-nitroveratryloxycarbonyl) modified [Leu5]-enkephalin. The caging groups are indicated in red. (B) Schematic of preparation of somatostatin-encapsulated photosensitive nanovesicles (Au-nV-SST) and photorelease by the near-infrared laser pulses. The illustration of Au-nV-SST was adapted with permission from Ref [7].
