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- W2527831607 abstract "As a naturally-abundant biopolymer, chitosan (CS) exhibit pH-sensitive structural transformation within a narrow pH range. Integrating hydrophobic groups to CS molecules gives modified CS polymers with more adjustable pH responsiveness. In this paper, near-infrared (NIR) photoluminescent Ag2S QDs capped by long-chain carboxylic acid were synthesized and then conjugated with CS via esterification reaction. The anticancer drug doxorubicin (DOX) has an affinity for the hydrophobic oleoyl groups and was entrapped by them to produce Ag2S(DOX)@CS nanospheres. A variety of experiments were performed to characterize the nanospheres. In vitro and in vivo experiments showed that the nanospheres can release DOX at lowered pH in tumor cells and have high antitumor efficacy. In addition, the strong NIR signal derived from the encapsulated Ag2S QDs makes real-time monitoring of the nanosphere distribution in a body possible. This study provides a new CS-based nanocomposite drug carrier for efficient cancer therapy." @default.
- W2527831607 created "2016-10-14" @default.
- W2527831607 creator A5029639332 @default.
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- W2527831607 date "2017-02-01" @default.
- W2527831607 modified "2023-10-14" @default.
- W2527831607 title "Chitosan-based core-shell nanomaterials for pH-triggered release of anticancer drug and near-infrared bioimaging" @default.
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- W2527831607 doi "https://doi.org/10.1016/j.carbpol.2016.09.092" @default.
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