Laser-assisted one-pot fabrication of calcium phosphate-based submicrospheres with internally crystallized magnetite nanoparticles through chemical precipitation

Physical Chemistry Chemical Physics : PCCP
Maki NakamuraKenji Kawaguchi

Abstract

In this paper, we have further developed our simple (one-pot) and rapid (short irradiation time) laser fabrication process of submicrometer spheres composed of amorphous calcium iron phosphate. In our previous process, laser irradiation was applied to a calcium phosphate (CaP) reaction mixture supplemented with ferric ions (Fe(3+)) as a light-absorbing agent. Because the intention of the present study was to fabricate magnetite-encapsulated CaP-based submicrometer spheres, ferrous ions (Fe(2+)) were used as a light-absorbing agent rather than ferric ions. The ferrous ions served as a light-absorbing agent and facilitated the fabrication of submicrometer and micrometer spheres of amorphous calcium iron phosphate. The sphere formation and growth were better promoted by the use of ferrous ions as compared with the use of ferric ions. The chemical composition of the spheres was controllable through adjustment of the experimental conditions. By the addition of sodium hydroxide to the CaP reaction mixture supplemented with ferrous ions, fabrication of CaP-based magnetic submicrometer spheres was successfully achieved. Numerous magnetite and wüstite nanoparticles were coprecipitated or segregated into the CaP-based spherical amorphous...Continue Reading

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Citations

Oct 16, 2015·Physical Chemistry Chemical Physics : PCCP·Marcus LauStephan Barcikowski
Aug 28, 2016·Journal of Colloid and Interface Science·Zaneta Swiatkowska-WarkockaKenji Kawaguchi
Feb 14, 2017·Chemical Reviews·Dongshi ZhangStephan Barcikowski
Jan 18, 2017·Chemphyschem : a European Journal of Chemical Physics and Physical Chemistry·Yechuang HanChanghao Liang
Nov 20, 2016·Chemphyschem : a European Journal of Chemical Physics and Physical Chemistry·Vincenzo AmendolaOsman M Bakr
Oct 14, 2016·Journal of Materials Chemistry. B, Materials for Biology and Medicine·Maki Nakamura, Ayako Oyane

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