• controlling the biological function of calcium phosphate bone substitutes with drugs

    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1392/01/01
    • تاریخ انتشار در تی پی بین: 1392/01/01
    • تعداد بازدید: 622
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    • شماره تماس دبیرخانه رویداد: -
     there is a growing interest in bone tissue engineering for bone repair after traumatic, surgical or pathological injury, such as osteolytic tumor or osteoporosis. in this regard, calcium phosphate (cap) bone substitutes have been used extensively as bone-targeting drug-delivery systems. this localized approach improves the osteogenic potential of bone substitutes by delivering bone growth factors, thus extending their biofunctionality to any pathological context, including infection, irradiation, tumor and osteoporosis. this review briefly describes the physical and chemical processes implicated in the preparation of drug-delivering caps. it also describes the impact of these processes on the intrinsic properties of caps, especially in terms of the drug-release profile. in addition, this review focuses on the potential influence of drugs on the resorption rate of caps. interestingly, by modulating the resorption parameters of cap biomaterials, it should be possible to control the release of bone-stimulating ions, such as inorganic phosphate, in the vicinity of bone cells. finally, recent in vitro and in vivo evaluations are extensively reported.

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