Results 271 to 280 of about 44,910 (309)
Some of the next articles are maybe not open access.
[Need for the differentiation of apatite and carbonate apatite].
Zeitschrift fur Urologie und Nephrologie, 1989With extensive analytical and clinical examinations it is shown that the proof of carbonate in apatite may allow no additional reference of an infection with urea-splitting bacteria. With certain analytical methods the presence of carbonate is demonstrable in each urinary calculus apatite phase.
G, Brien +4 more
openaire +1 more source
Science, 1969
More than 25 atomic percent of aluminum can substitute for other cations in the structure of apatite [ A 10 ( X O 4 ) 6 Z 2 ]. Such a synthetic product was obtained by expelling volatile constituents (H
D J, Fisher, D, McConnell
openaire +2 more sources
More than 25 atomic percent of aluminum can substitute for other cations in the structure of apatite [ A 10 ( X O 4 ) 6 Z 2 ]. Such a synthetic product was obtained by expelling volatile constituents (H
D J, Fisher, D, McConnell
openaire +2 more sources
The Reaction of Monofluorophosphate with Apatite
Caries Research, 2009The action of sodium monofluorophosphate on Syntheti chydroxyapatites has been studied using pure mono- syntheticfluorophosphate solutions.Monofluorophosphate-treated hydroxyapatite was less soluble in acid buffer than fluoride-treated mineral of similar fluorine content. During the reaction some orthophosphate was liberated from the solid and addition
openaire +2 more sources
[Fluoride ions and apatite recrystallization of apatite in enamel].
Prakticke zubni lekarstvi, 1991The authors discuss the basic process on which the principle of fluoridation in based--i.e. the mutual exchange of F- ions and the OH- group in hydroxyapatite of enamel. Model investigations assessing the energy difference between hydroxyapatite and F- and fluorapatite and the OH- group indicate that fluorapatite tends to release steadily fluoride ions
O, Brázda, R, Zahradník
openaire +1 more source
Hydrothermal preparation of fibrous apatite and apatite sheet
Solid State Ionics, 2002Abstract Hydroxyapatite (Ca 10 (PO 4 ) 6 (OH) 2 :HA) with highly designed microstructures is required for bone filling materials and tissue engineering of cultured bones. This study deals with the shape control of HA particles and preparation of HA sheet from fibrous HA.
openaire +1 more source