摘要
先后在低浓度和高浓度的钙、磷电解液中，采用两步电化学沉积法在纯钛金属表面制备了荆棘状羟基磷灰石棒（THA）。微观结构分析表明，THA的主干是由HA单晶构成，直径为100—200nm，叉刺为HA多晶结构，直径为10。50nm，它们在钛金属表面构成了具有两重微纳形貌的多孔涂层。溶解性实验与接触角测试结果表明，与单纯的HA棒涂层相if,，这种THA涂层具有较高的钙离子释放速度和优异的表面润湿性。
Thorned hydroxyapatite rods （THA） were synthesized on surface of commercially pure titanium specimens by two-step electrochemical method successively in electrolytes with lower and higher Ca2＋ and P043- ion concentration. The microstructural analysis showed that the main rod （100-200 nm in diameter） of the THA is of HA single crystal, while the thorn （10-50 nm in diameter） consisted of HA nanocrystals. The THAs constitute uniform micro-nano porous coating on the titanium surface. The solubility and contact angle measurement showed that, compared to the bare HA rod coating, the THA coating exhibited higher releasing rate of Ca2＋ in phosphate
出处
《无机化学学报》
SCIE
CAS
CSCD
北大核心
2013年第5期973-978,共6页
Chinese Journal of Inorganic Chemistry
基金
国家自然科学基金(No.50571088)
浙江省杰出青年科学计划(R2110374)资助项目
关键词
电化学沉积
羟基磷灰石
涂层
溶解性
润湿性
electrochemical depositions
hydroxyapatite
coating
solubility
wettability
