Properties of biogenic magnetite nanoparticles in the radula of chiton <Emphasis Type="Italic">Acanthochiton rubrolineatus</Emphasis> lischke |
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| Authors: | Chuanlin Liu Yunan Han Chenghua Guo Chengsheng Liu Xiguang Chen |
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| Affiliation: | LIU Chuanlin1,2,HAN Yunan 3,GUO Chenghua2,LIU Chengsheng 1,CHEN Xiguang 1,(1.College of Marine Life Science,Ocean University of China,Qingdao 266003,China,2.College of Biological Science and Engineering,Yantai University,Yantai 264005,3.College of Physics Science,Xiangtan University of Science and Technology,Xiangtan 411201,China) |
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| Abstract: | The properties of biogenic magnetite(Fe 3 O 4 )nanoparticles in chiton acanthochiton rubrolineatus lischke were characterized by selected electron diffractometry,high resolution transmission electron microscopy,Fourier transform infrared spectroscopy,M·ssbauer spectroscopy and magnetization measurements.Results showed that the magnetite nanoparticles presented crystalline appearance,exhibiting strong absorptions at 595,1 463,3 467 cm-1 and weak adsorptions at 1 697,1 113,1 048,848,445 cm-1 in FT-IR,two partially overlapping sextets in M·ssbauer spectrum,and the area ratio of the sextets was 1.08.Also,the particles exhibited ferromagnetic behavior,and had 82 A·m2/kg saturation magnetization,1.4·104 A/m coercive force and 4.0 A·m2/kg remnant magnetization,respectively.The investigation indicates that the biogenic magnetite nanoparticles mineralized in the chiton are impure in composition and non-stoichiometric. |
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| Keywords: | biogenic magnetite nanoparticle HRTEM FT-IR m·ssbauer spectroscopy SQUID |
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