Moderate intensity static magnetic field has bactericidal effect on E. coli and S. epidermidis on sintered hydroxyapatite

Journal of Biomedical Materials Research. Part B, Applied Biomaterials
Indu BajpaiBikramjit Basu

Abstract

The application of electromagnetic field in the context of bacteria associated infections on biomaterial surfaces has not been extensively explored. In this work, we applied a moderate intensity static magnetic field (100 mT) to understand the adhesion and growth behavior of both gram positive (S. epidermidis) and gram negative bacteria (E. coli) and also to investigate bactericidal/bacteriostatic property of the applied electromagnetic field. An in-house built magnetometer was used to apply static homogeneous magnetic field during a planned set of in vitro experiments. Both the sintered hydroxyapatite (HA) and the control samples seeded with bacteria were exposed to the magnetic field (100 mT) for different timescale during their log phase growth. Quantitative analysis of the SEM images confirms the effect of electromagnetic field on suppressing bacterial growth. Furthermore, cell integrity and inner membrane permeabilization assays were performed to understand the origin of such effect. The results of these assays were statistically analyzed to reveal the bactericidal effect of magnetic field, indicating cell membrane damage. Under the investigated culture conditions, the bactericidal effect was found to be less effective for...Continue Reading

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Citations

Jan 28, 2014·Electromagnetic Biology and Medicine·Karol FijałkowskiRafał Rakoczy
Oct 22, 2013·Journal of Biomedical Materials Research. Part B, Applied Biomaterials·Indu BajpaiBikramjit Basu
May 28, 2015·Journal of Biomedical Materials Research. Part B, Applied Biomaterials·Sunil Kumar BodaBikramjit Basu
Jul 13, 2016·Journal of Biomedical Materials Research. Part B, Applied Biomaterials·Sunil Kumar Boda, Bikramjit Basu
May 29, 2015·Journal of Applied Oral Science : Revista FOB·Snezana BrkovicDragan Ilic
Oct 28, 2018·Biotechnology Journal·Jean-Pierre AlcarazDonald K Martin
Aug 25, 2019·Bioprocess and Biosystems Engineering·Hengfang TangZhiming Zheng
Oct 26, 2018·International Journal of Molecular Sciences·Ding-Ping BaiXi-Feng Zhang
Apr 28, 2015·Journal of Materials Chemistry. B, Materials for Biology and Medicine·Sunil Kumar BodaBikramjit Basu
May 31, 2018·Environmental Science and Pollution Research International·Maria ŁebkowskaMonika Załęska-Radziwiłł
Nov 26, 2019·Materials Science & Engineering. C, Materials for Biological Applications·Angaraj SinghAshutosh Kumar Dubey
Feb 16, 2021·The Science of the Total Environment·Yilin WangYuansheng Hu
Dec 16, 2020·ACS Biomaterials Science & Engineering·Nitu BhaskarBikramjit Basu

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