화학공학소재연구정보센터
학회 한국재료학회
학술대회 2014년 봄 (05/15 ~ 05/16, 창원컨벤션센터)
권호 20권 1호
발표분야 D. 바이오 재료(Biomaterials)
제목 Bone regenerating properties of surface modified Silicon-doped BCP micro-channeled granular bone filler in rabbit femoral head defect
초록 Silicate-doped biphasic calcium phosphate (SiBCP) granular bone fillers of 1mm in diameter and height with seven 100-μm micro-channels were surface modified with collagen and loaded with BMP-2 (SM-SiBCP). SiBCP and SM-SiBCP granules were implanted on 5mm size defects on rabbit femoral heads and compared the bone regeneration against a control after 1, 4 and 8 weeks. Significant bone formation is already observed in the 1 week samples implanted with the granules according to the reconstructed micro-CT images although some inflammation occurred with the SM-SiBCP from the histological analysis. After 4 weeks, bone formation reached up to 44.72% for SiBCP and 46.31% for SM-SiBCP with half of the total volume being mature bone.  After 8 weeks of implantation, bone formation from SM-SiBCP became significantly highest at 62.76%, SiBCP at 53.62% and control with 53.90% although completely composed of soft tissue. These results showed that the surface modified micro-channeled granules showed potential for bone tissue regeneration.
저자 Nathaniel T. Carpena1, Dong-Woo Jang2, Swapan Kumar Sarkar3, Byong-Taek Lee1
소속 1InoBone, 2Cheonan, 3South Korea
키워드 Bone regeneration; Calcium phosphate; BMP; Silicate; collagen; in vivo test
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