Template-free synthesis of phosphate-based spheres via modified supersaturated phosphate buffer solutions

Modified supersaturated phosphate buffer solutions were used to synthesize phosphate-based spheres, including calcium phosphate (CaP), strontium phosphate (SrP) and barium phosphate (BaP). A series of ions concentrations in the modified phosphate buffer solutions were investigated in order to study their effects in precipitates morphologies. During synthesis, it was found that magnesium was the key factor in sphere formation. The morphologies of calcium phosphate, strontium phosphate and barium phosphate precipitates varied as the concentration of magnesium ions varied. When sufficient magnesium was provided, the precipitates appeared spherical, and the diameter was in range of 0.5-2 mu m. The morphologies, compositions and structure of spheres were characterized by x-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and N-2 adsorption analysis. Moreover, the application of magnesium substituted calcium phosphate spheres in dentin tubules occlusion was investigated.

Han, YuanyuanUppsala universitet,Tillämpad materialvetenskap(Swepub:uu)yuaha674 (author)
Zhang, PengUppsala universitet,Nanoteknologi och funktionella material(Swepub:uu)penzh784 (author)
Wani, Ishtiaq Hassan,1985-Uppsala universitet,Tillämpad materialvetenskap(Swepub:uu)wanis964 (author)
Nikolajeff, FredrikUppsala universitet,Tillämpad materialvetenskap(Swepub:uu)fni28025 (author)
Leifer, Klaus,1965-Uppsala universitet,Tillämpad materialvetenskap,Uppsala Univ, Dept Engn Sci, Div Appl Mat Sci, Angstromlab, Lagerhyddsvagen 1, S-75237 Uppsala, Sweden.(Swepub:uu)kllei839 (author)
Engqvist, Håkan,1972-Uppsala universitet,Tillämpad materialvetenskap(Swepub:uu)hakaengq (author)
Uppsala universitetTillämpad materialvetenskap (creator_code:org_t)

In:Journal of materials science. Materials in medicine: SPRINGER28:70957-45301573-4838

By the author/editor: Qin, Tao, 1984-; Han, Yuanyuan; Zhang, Peng; Wani, Ishtiaq Ha ...; Nikolajeff, Fred ...; Leifer, Klaus, 1 ...; show more...; Engqvist, Håkan, ...; show less...

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ENGINEERING AND TECHNOLOGY: ENGINEERING AND ...; and Medical Engineer ...; and Medical Material ...

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