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Issue 11, 2018
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Photo-responsive camptothecin-based polymeric prodrug coated silver nanoparticles for drug release behaviour tracking via the nanomaterial surface energy transfer (NSET) effect

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Abstract

A hybrid drug delivery system was successfully fabricated by attaching a camptothecin (CPT)-based polymeric prodrug onto the surface of silver nanoparticles (AgNPs). PEG was employed as a macro-RAFT agent in RAFT polymerization to synthesize a branched star copolymer, to which CPT is linked through the photo-responsive o-nitrobenzyl linkage. In vitro tests indicate that the fluorescence of CPT in the polymeric prodrug is quenched by AgNPs based on the nanomaterial surface energy transfer (NSET) effect and the fluorescence recovers when the CPT molecules are released from hybrid nanoparticles. Thus, the variation of fluorescence intensity is bound up with the drug release behaviours, which may enable this AgNP-based drug delivery system to trace the intracellular drug release process and observe the distribution of released CPT in cells.

Graphical abstract: Photo-responsive camptothecin-based polymeric prodrug coated silver nanoparticles for drug release behaviour tracking via the nanomaterial surface energy transfer (NSET) effect

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Publication details

The article was received on 17 Nov 2017, accepted on 05 Feb 2018 and first published on 06 Feb 2018


Article type: Paper
DOI: 10.1039/C7TB02998E
Citation: J. Mater. Chem. B, 2018,6, 1678-1687
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    Photo-responsive camptothecin-based polymeric prodrug coated silver nanoparticles for drug release behaviour tracking via the nanomaterial surface energy transfer (NSET) effect

    J. Li, L. Qiu, X. Xu, C. Pan, C. Hong and W. Zhang, J. Mater. Chem. B, 2018, 6, 1678
    DOI: 10.1039/C7TB02998E

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