Micro-Magnetic Field at the Surface of Surgical Materials for Biocompatibility Improvement
TiO2 thin film containing SrFe12O19 powders on the surface of 316L stainless steel and NiTi alloy was prepared through sol-gel method and micro-magnetic field was established by the magnetization process applied on the coating. The coating film was characterized by x-ray diffraction (XRD) and the surface morphology of the coating was observed by scanning electron microscope (SEM). This blood compatibility thin film was evaluated by dynamic cruor time of blood test.The results show that dynamic cruor time of blood is prolonged by the micro-magnetic field of the thin film, indicating improved blood compatibility.
Zhengyi Jiang, Jingtao Han and Xianghua Liu
Q. Liu et al., "Micro-Magnetic Field at the Surface of Surgical Materials for Biocompatibility Improvement", Advanced Materials Research, Vols. 152-153, pp. 1441-1444, 2011