Insight on thermal stability of magnetite magnetosomes: implications for the fossil record and biotechnology.

ABSTRACT: Magnetosomes are intracellular magnetic nanocrystals composed of magnetite (Fe₃O₄) or greigite (Fe₃S₄), enveloped by a lipid bilayer membrane, produced by magnetotactic bacteria. Because of the stability of these structures in certain environments after cell death and lysis, magnetosome magnetite crystals contribute to the magnetization of sediments as well as providing a fossil record of ancient microbial ecosystems. The persistence or changes of the chemical and magnetic features of magnetosomes under certain conditions in different environments are important factors in biotechnology and paleomagnetism. Here we evaluated the thermal stability of magnetosomes in a temperature range between 150 and 500 °C subjected to oxidizing conditions by usin

SUBMITTER: Cypriano J 

PROVIDER: S-EPMC7174351 | biostudies-literature | 2020 Apr

REPOSITORIES: biostudies-literature