Structural and Physical Properties of Antibacterial Ag-Doped Magnetic Microspheres

Xian Ming Liu; Xue Yi Yang; De Guang Du

doi:10.4028/www.scientific.net/AMR.864-867.131

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 864-867Structural and Physical Properties of...

Structural and Physical Properties of Antibacterial Ag-Doped Magnetic Microspheres

Abstract:

Synthesis of Ag-doped magnetic composites with antibacterial properties is in the great interest in the development of new biomedical applications. Ag/γ-Fe₂O₃ composite microspheres have been successfully prepared via a simple solvothermal reduction method under mild conditions. The crystal phases and the shapes of the products were characterized by XRD and SEM. The results revealed that the composites are spherical with the diameter of 200-300 nm. Magnetic measurements showed that the mixed microspheres exhibit a typical ferromagnetic behavior, a specific saturation magnetization of 56 emu/g and an intrinsic coercivity of 38 Oe at room temperature. The strain of E. coli was used to evaluate the antibacterial activity of the Ag-doped γ-Fe₂O₃ composites which exhibited very high inhibition.

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Periodical:

Advanced Materials Research (Volumes 864-867)

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131-135

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.864-867.131

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Online since:

December 2013

Authors:

Xian Ming Liu, Xue Yi Yang, De Guang Du

Keywords:

Antibacterial Activity, Composite, Ferromagnetic Behavior, Microsphere

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