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Main chain copolysiloxanes with terthiophene and perylenediimide units: synthesis, characterization and electrical memory

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  • Key Words:CONTROLLED-RELEASE; HYDROXYAPATITE NANOPARTICLES; IMPROVED DEGRADABILITY; TISSUE REGENERATION; GOLD NANOPARTICLES; PH; MICROPARTICLES; MICROSPHERES; FABRICATION; MECHANISM

  • Abstract:A hollow mesoporous microspheres of hydroxyapatite-Au containing the anticancer agent of methotrexate (hmHAp-Au/MTX) were prepared here. Firstly, biocompatible hydroxyapatite nanoparticles (NPs) with a hollow core and mesoporous shell structure (hmHAp) were synthesized by a template method. Secondly, Au NPs were successfully conjugated onto the surface of hmHAp through the electrostatic attraction. The synthesized hmHAp-Au/MTX had high biocompatibility and pH responsive features. Moreover, the drug release of hmHAp-Au/MTX was pH-dependent because of the dissolution of HAp under acidic conditions. Furthermore, the combined treatment on the cancer cells by using hmHAp-Au/MTX for synergistic hyperthermia ablation and chemotherapy was demonstrated to exhibit higher therapeutic efficacy, presenting the great potential of the platform for cancer therapy.<bold> </bold>

  • Volume:586

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