Abstract
The advantages of mesoporous hydroxyapatite and the thermo-responsive property of poly-N-isopropylacrylamide make them attractive in drug delivery system, respectively. In this work, mesoporous poly-N-isopropylacrylamide-hydroxyapatite composite microspheres (PNIPAM-m-HAP) were synthesized, characterized and applied as a drug carrier. Doxorubicin was selected as a typical anticancer drug to study the in-vitro release characteristics of drug from PNIPAM-m-HAP in PBS. The release mechanism and release kinetics was also studied. Furthermore, the biocompatibility of the PNIPAM-m-HAP material was evaluated by MTT method. The experimental results depicted that the synthesized PNIPAM-m-HAP material was biocompatible, pH and thermo-responsive, which showed controlled release of doxorubicin.
Highlights
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PNIPAM-m-HAP microspheres were synthesized, characterized and used as anticancer drug carrier.
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PNIPAM-m-HAP was pH and thermo-responsive, which showed sustainable release of doxorubicin.
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The release mechanism was studied and the biocompatibility of PNIPAM-m-HAP was evaluated.
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This work was supported by National Nature Science Foundation of China (B040603), which is from Shi Wang.
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Zhou, L., Zhang, Y., Zeng, D. et al. Dual-responsive mesoporous poly-N-isopropylacrylamide-hydroxyapatite composite microspheres for controlled anticancer drug delivery. J Sol-Gel Sci Technol 97, 600–609 (2021). https://doi.org/10.1007/s10971-020-05460-3
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DOI: https://doi.org/10.1007/s10971-020-05460-3