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      Transition metal-substituted cobalt ferrite nanoparticles for biomedical applications.

      1 , , ,
      Acta biomaterialia
      Elsevier BV

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          Abstract

          Transition metals of copper, zinc, chromium and nickel were substituted into cobalt ferrite nanoparticles via a sol-gel route using citric acid as a chelating agent. The microstructure and elemental composition were characterized using scanning electron microscopy combined with energy-dispersive X-ray spectroscopy. Phase analysis of transition metal-substituted cobalt ferrite nanoparticles was performed via X-ray diffraction. Surface wettability was measured using the water contact angle technique. The surface roughness of all nanoparticles was measured using profilometry. Moreover, thermogravimetric analysis and differential scanning calorimetry were performed to determine the temperature at which the decomposition and oxidation of the chelating agents took place. Results indicated that the substitution of transition metals influences strongly the microstructure, crystal structure and antibacterial property of the cobalt ferrite nanoparticles.

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          Author and article information

          Journal
          Acta Biomater
          Acta biomaterialia
          Elsevier BV
          1878-7568
          1742-7061
          Mar 2013
          : 9
          : 3
          Affiliations
          [1 ] Industrial Research Institute Swinburne, Faculty of Engineering and Industrial Sciences, Swinburne University of Technology, Hawthorn, VIC 3122, Australia.
          Article
          S1742-7061(12)00529-6
          10.1016/j.actbio.2012.10.037
          23137676
          bbd1a7a2-4718-436b-bbd5-5103227fc9d7
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