Explore the Effects of Magnetic Field Intensity Change on Acidithiobacillus ferrooxidans Growth and Magnetism

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Abstract:

All the times we study a lot about Acidithiobacillus ferrooxidans (A.f) in mineral leaching, but when it is discovered that it can synthesize magnetosomes(Ms) in its body, researchers start to pay attention to its synthesis mechanism of Ms, while there is still few studies about the influence to A.f by external environment change. This article mainly aims at exploring the influence on A.f growth and magnetism under the outside magnetic field strength change. The findings show that not all A.f can synthesize magnetic substance. Under the most primary culture, there are few thalli can synthesize Ms; magnetic field at about 5mT, 10mT may promote thalli growth (quantity); magnetic field at about 25mT and 30mT may be harmful or beneficial to thalli response to time length; magnetic field at about 15mT, 20mT, 35mT, 40mT, 50mT may restrain thalli growth and reduce thalli activeness.

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Periodical:

Advanced Materials Research (Volumes 152-153)

Pages:

1783-1787

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Online since:

October 2010

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[1] X.Q. Chen, et al., Preparation of water base bilayer surfactants enveloped magnetic fluid[N]. Chinese Journal of Inorganic Chemistry, 2003, 19(5): 548-551. (In Chinese).

Google Scholar

[2] W.B. Li, et al., Synthesis and application of biocompatible magnetite magnetic nanoparticles[J]. Modern Chemical Industry, 2006, 26: 322. (In Chinese).

Google Scholar

[3] X.X. Liu, et al., Isolation Bacteria by Use the Principle of Magnetic Separation-Isolate the Bioleaching Bacteria by Biomagnetic Seperation [J], Biomagnetism, 2005, 5(4): 5-8. (In Chinese).

Google Scholar

[4] Amaro, A.M., Effect of External Ph Perturbations on Invivo Protein-Synthesis by the Acidophilic Bacterium Thiobacillus-Ferrooxidans[J]. Journal of Bacteriology, 1991, 173(2): 910—915.

DOI: 10.1128/jb.173.2.910-915.1991

Google Scholar

[5] R. Li, et al, Study on growth characteristics of desulfurization microognism[N], 2008, 22(6): 734. (In Chinese).

Google Scholar

[6] W.B. Liu. Study on formation of magnetosomes of Acidithiobacillus ferrooxidans[D]. Master thesis of Central South University, (2007).

Google Scholar

[7] Woo I.S. , Rhee I.K. and Park H.D. Different damage in bacterial cells by microwave radiation on the basis of cell wall structure. Applied and Environment Microbiology[J], 2000, 66(5): 2243.

DOI: 10.1128/aem.66.5.2243-2247.2000

Google Scholar