کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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1254792 | 971392 | 2014 | 8 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Reversible photoswitching aggregation and dissolution of spiropyran-functionalized copolymer and light-responsive FRET process Reversible photoswitching aggregation and dissolution of spiropyran-functionalized copolymer and light-responsive FRET process](/preview/png/1254792.png)
Well-defined, reversibly light-responsive amphiphilic diblock copolymer grafted with spiropyran, was prepared by reversible addition–fragmentation chain transfer (RAFT) polymerization. The copolymer self-assembles into polymeric micelles in water and exhibits reversible dissolution and re-aggregation characteristics upon ultraviolet (UV) and visible (Vis)-light irradiation. The fluorescence response of spiropyran immobilized onto the copolymer was light switchable. When nitrobenzoxadiazolyl derivative (NBD) dyes are encapsulated into the core of the micelles, a reversible, light-responsive, dual-color fluorescence resonance energy transfer (FRET) system is constructed and processed, which is well regulated by alternatively UV/vis irradiation. We anticipate these photoswitchable and FRET lighting up nanoparticles will be useful in drug delivery and cell imaging or tracking synchronously.
Well-defined amphiphilic diblock copolymer decorated with spiropyran exhibits good reversible photoswitchable and FRET light-responsive properties, which would have a potential application in drug delivery and cell imaging and tracking synchronously.Figure optionsDownload as PowerPoint slide
Journal: Chinese Chemical Letters - Volume 25, Issue 3, March 2014, Pages 389–396