Issue 97, 2016

Magnetism in living magnetically-induced bacteria

Abstract

Artificial magnetically-induced bacteria were prepared by labelling probiotic bacteria Lactobacillus fermentum with maghemite nanoparticles. Most bacteria remained alive after magnetic labelling and exhibited good viability. We have used this unique living magnetic material to address an issue never posed before: how does the magnetism of a living magnetic system vary while life proliferates. Monitoring of magnetic properties of this living system confirmed a magnetic dilution during proliferation. During bacteria division, the number of magnetic nanoparticles was equally shared among the daughter bacteria. Chain-like assemblies fixed into a LR-white resin with the application of a magnetic field enhance the anisotropic magnetic properties of this system.

Graphical abstract: Magnetism in living magnetically-induced bacteria

Article information

Article type
Paper
Submitted
11 Aug 2016
Accepted
27 Sep 2016
First published
27 Sep 2016

RSC Adv., 2016,6, 95220-95226

Magnetism in living magnetically-induced bacteria

M. Martín, V. Garcés, J. M. Domínguez-Vera and N. Gálvez, RSC Adv., 2016, 6, 95220 DOI: 10.1039/C6RA20295K

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