CAJ | 학술논문

目的研究磁性生物陶瓷[Magnetic Porous Ca3(PO4)2,MPTCP]优良的生物愈合能力的形成原因与理论基础.方法 MPTCP磁化曲线的测定:选取7块2 cm×1 cm×0.5 cm的MPTCP样本,分别置于材料物理系统测试42次,取其均值测定磁性生物陶瓷磁化曲线;采用惠普RLC阻抗谱仪4284A的附件16451B测定MPTCP电介质谱与介电损耗谱,采用四线法测量MPTCP电阻抗.结果 MPTCP具有较好的顺磁性,外磁场在-10 000～10 000 Oe区间表现:磁化快,退磁也快;饱和磁化强度约为0.842 53 emu/g.电介质谱与介电损耗谱研究:电磁波为103～104Hz区间介电常数有一明显的高峰性改变;相应区域的介电损耗达到高峰.电阻抗测试结果较为明显的是,当外部电磁波的频率≤1 000 Hz时,MPTCP的电阻抗较大,而当电磁波的频率≥1 000 Hz时,电阻抗相对较小,且较为稳定.结论对研究结果的分析表明自然磁场与生活磁场的作用能够导致MPTCP磁、电状态的改变:即MPTCP的磁化强度改变以及感应电流、感应电动势的产生;感应电流与感应电动势进而促进材料与骨的生物愈合可能是MPTCP具有良好的生物愈合能力的主要原因.
목적 연구자성생물도자[Magnetic Porous Ca3(PO4)2,MPTCP]우량적생물유합능력적형성원인여이론기출.방법 MPTCP자화곡선적측정:선취7괴2 cm×1 cm×0.5 cm적MPTCP양본,분별치우재료물리계통측시42차,취기균치측정자성생물도자자화곡선;채용혜보RLC조항보의4284A적부건16451B측정MPTCP전개질보여개전손모보,채용사선법측량MPTCP전조항.결과 MPTCP구유교호적순자성,외자장재-10 000～10 000 Oe구간표현:자화쾌,퇴자야쾌;포화자화강도약위0.842 53 emu/g.전개질보여개전손모보연구:전자파위103～104Hz구간개전상수유일명현적고봉성개변;상응구역적개전손모체도고봉.전조항측시결과교위명현적시,당외부전자파적빈솔≤1 000 Hz시,MPTCP적전조항교대,이당전자파적빈솔≥1 000 Hz시,전조항상대교소,차교위은정.결론대연구결과적분석표명자연자장여생활자장적작용능구도치MPTCP자、전상태적개변:즉MPTCP적자화강도개변이급감응전류、감응전동세적산생;감응전류여감응전동세진이촉진재료여골적생물유합가능시MPTCP구유량호적생물유합능력적주요원인.
Objective To study the causes and theoretical basis for good bone healing ability of magnetic Porous Ca3 (PO4) 2 ( MPTCP). Methods Seven MPTCP specimens with size of 2 cm × 1 cm × 0.5 cm were placed in the material physical system for detecting 42 times and the mean detection value was used to measure the MPTCP curve. The attachment 16451B of impedance spectrometer HP RLC was employed to measure dielectric spectroscopy and dielectric spectroscopy of MPTCP. Four-wire method was used to measure the impedance of MPTCP. Results The magnetic intensity changed rapidly when magnetic field was in a range of-10,000-10,000 Oe. The peak of dielectric spectroscopy and impedance of magnetic bioceramics was in the range of 103-104 Hz. When the external electromagnetic wave of frequency was ≤ 1 000 Hz, electrical impedance of MPTCP was large;while when the electromagnetic wave frequency was≥1 000 Hz, the impedance was relatively small and stable. Conclusion The environmental magnetic fields may change the magnetic and electric behavior of MPTCP and promote the biological healing, which may be the cause for the good bone healing ability of MPTCP.