Alkali Counterions Impact Crystallization Kinetics of Apatite Nanocrystals from Amorphous Calcium Phosphate in Water at High pH
Alkali Counterions Impact Crystallization Kinetics of Apatite Nanocrystals from Amorphous Calcium Phosphate in Water at High pH
复制标题
碱抗衡离子影响高 pH 水中无定形磷酸钙磷灰石纳米晶体的结晶动力学
DOI:
10.1021/acs.cgd.8b01008
复制
发表时间:
2018
影响因子:
3.8
通讯作者:
H. Birkedal
中科院分区:
文献类型:
--
作者:
C. J. Ibsen;H. Leemreize;Bjørn Fridur Mikladal;J. Skovgaard;M. Bremholm;Jacob Rostgaard Eltzholtz;B. Iversen;H. Birkedal
Crystallization from amorphous precursors emerges as a major principle in biomineralization, but the mechanisms and kinetics involved remain unclear for many materials. Herein, we used in situ synchrotron X-ray diffraction to study crystallization of apatite from amorphous calcium phosphate at a pH where the solution is dominated by phosphate to circumvent the formation of acidic calcium phosphates. The initial crystals were almost isometric. Highly anisotropic growth resulted in needle shaped crystals at later times. Changing the counterion from sodium to potassium lead to changes in nucleation time, growth speed, and nanocrystal shape but preserved the overall crystallization mechanism.
影响因子:
4.1
作者:
Crane, Nicole J.;Popescu, Victoria;Ignelzi, Michael A., Jr.
通讯作者:
Ignelzi, Michael A., Jr.
影响因子:
41.2
作者:
通讯作者:
--
影响因子:
9.7
作者:
Kumta, PN;Sfeir, C;Choi, D
通讯作者:
Choi, D