Phase formation and morphology of calcium phosphate–gelatine-composites grown by double diffusion technique: the influence of fluoride

Biocomposites and hybrid biomaterials based on calcium orthophosphates

“…3) was achieved by diffusion of calcium -and orthophosphate + fluoride solutions from opposite sides into a tube filled with a gelatin gel. [444][445][446][447][448][449][450][451][452][453] The reasons for this phenomenon are not quite clear yet; besides, up to now, nothing has yet been reported on a possible biomedical application for such very unusual structural composites.…”

Calcium orthophosphate-based biocomposites and hybrid biomaterials

“…2) was achieved by diffusion of calcium-and orthophosphate ? fluoride-solutions from the opposite sides into a tube filled with a gelatin gel [366][367][368][369][370][371][372][373][374]. The reasons of this phenomenon are not quite clear yet; besides, up to now nothing has yet been reported on a possible biomedical application of such very unusual structural composites.…”

Fluorapatite-Gelatine-Nanocomposites: Self-Organized Morphogenesis, Real Structure and Relations to Natural Hard Materials

“…Moreover, the chemical systems without addition of fluoride tend towards the formation of other calcium phosphates such as octacalcium phosphate. The influence of fluoride on phase formation and morphology of calcium phosphate-gelatine composites grown by the double diffusion technique [21] is clearly demonstrated by the SEM images shown in Fig. 1.…”

“…Substitution (OH 1-x F x ) by formation of members ("parts") of the solid-solution series between HAP and FAP [28] is of overriding importance because of dramatic effects concerning control and change of the apatite morphology. This effect has recently been investigated in some detail [21,29]. Moreover, the chemical systems without addition of fluoride tend towards the formation of other calcium phosphates such as octacalcium phosphate.…”

“…In other words, "things" become easier with the FAP-gelatine nanocomposites, and at the same time the large and still unexplored fields of HAP-and OCP-composites and their morphogenesis are demonstrated. [21] Fluorapatite-Gelatine-Nanocomposites 77 2…”