Surface charge of hydroxyapatite and bone mineral

被引:5
作者
Bertran, C. A. [1 ]
Bertazzo, S. [1 ]
Faria, L. P. [1 ]
机构
[1] Univ Estadual Campinas, Inst Chem, POB 6154, BR-13083862 Campinas, Brazil
来源
BIOCERAMICS, VOL 19, PTS 1 AND 2 | 2007年 / 330-332卷
关键词
bone mineral; calcium phosphate; surface charge; proton adsorption;
D O I
10.4028/www.scientific.net/KEM.330-332.713
中图分类号
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
The surface charge of calcium phosphates in Simulated Body Fluid (SBF) may be one of the factors associated with the adhesion of cells and proteins, processes that are related with osteogenesis. For calcium phosphates in SBF, surface charge varies with solution pH due to the adsorption of positive ions and to the reactions that occur at the solid/biological fluid interface. In this work, the variation of the density of protons adsorbed and the surface charge as a function of pH were determined for Hydroxyapatite, CaHPO4, and Bone Mineral.
引用
收藏
页码:713 / +
页数:2
相关论文
共 8 条
[1]   POINT OF ZERO CHARGE OF HYDROXYAPATITE AND FLUORAPATITE IN AQUEOUS-SOLUTIONS [J].
BELL, LC ;
POSNER, AM ;
QUIRK, JP .
JOURNAL OF COLLOID AND INTERFACE SCIENCE, 1973, 42 (02) :250-261
[2]   Dissolution kinetics of nanoparticulate calcium phosphates and inorganic bone phase [J].
Bertazzo, S ;
Bertran, CA .
BIOCERAMICS 18, PTS 1 AND 2, 2006, 309-311 :527-530
[3]   THE EFFECT OF PHASE DIFFERENCES ON THE TIME-DEPENDENT VARIATION OF THE ZETA-POTENTIAL OF HYDROXYAPATITE [J].
DUCHEYNE, P ;
KIM, CS ;
POLLACK, SR .
JOURNAL OF BIOMEDICAL MATERIALS RESEARCH, 1992, 26 (02) :147-168
[4]   CRYSTALLINITY OF BONE-MINERAL [J].
GRYNPAS, M .
JOURNAL OF MATERIALS SCIENCE, 1976, 11 (09) :1691-1696
[5]   CALCIUM APATITE PREPARED FROM CALCIUM HYDROXIDE AND ORTHOPHOSPHORIC ACID [J].
OSAKA, A ;
MIURA, Y ;
TAKEUCHI, K ;
ASADA, M ;
TAKAHASHI, K .
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN MEDICINE, 1991, 2 (01) :51-55
[6]   ZERO POINT OF CHARGE OF OXIDES [J].
PARKS, GA ;
BRUYN, PLD .
JOURNAL OF PHYSICAL CHEMISTRY, 1962, 66 (06) :967-&
[7]  
Somasundaran P., 1968, J COLLOID INTERF SCI, V27, P559
[8]  
TERMINE JD, 1973, CALC TISS RES, V13, P73, DOI 10.1007/BF02015398