Crystal-chemical controls on rare-earth element concentrations in fossil biogenic apatites
and implications for paleoenvironmental reconstructions.
In vitro analysis shows that the samples have been covered by apatite
cell since 1 day, and increased the density of apatite
by immersion time.
It indicates that the deposition rate of apatite
has attained equilibrium.
1996) as that of sedimentary apatite
usually contain various anionic and cationic substituents as well as accompanying minerals, which affect their chemical properties.
Calculations of apatite
unit-cell a and c dimensions were derived from XRD patterns using an iterative least-squares computer software (Novak and Colville 1989).
1999) and has been reported to reflect equilibrium fractionation between the biogenic apatite
and the slightly anoxic or suboxic bottom seawater of that time (see Patrick et al.
Various analytical procedures were adopted for characterization of synthesized apatites
Chlorine in the lattice of biogenic apatites
is mostly associated with vertebrate tooth enamel (Michel et al.
are a structural type for compounds of the general formula [M.
The Dissolution Mechanism of Calcium Apatites
Papers from the symposium are collected here in 21 sections on topics including alumina/zirconia ceramics, apatites
, bioglasses and glass-ceramics, biomimetics, bone substitutes, calcium phosphate ceramics, cell materials interactions, and dements.
Thus our aim was to address these effects on phase properties of Zn-doped apatites
derived from waste egg shell material.
Biomimetic nanocrystalline apatites
are used as bone substitute materials in orthopedic and dental surgery.
In one of the Japanese studies, scientists from the Biomaterials Laboratory, Faculty of Engineering at Okayama University in Japan examined the blood compatibility and protein adsorption of hydroxyapatite and hydroxyl-carbonate apatites