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ID 61015
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Tamura, Katsunori Graduate School of Natural Science and Technology, Okayama University
Kunoh, Tatsuki Graduate School of Natural Science and Technology, Okayama University
Nakanishi, Makoto Graduate School of Natural Science and Technology, Okayama University Kaken ID publons researchmap
Kusano, Yoshihiro Department of Applied Chemistry and Biotechnology, Okayama University of Science
Takada, Jun Graduate School of Natural Science and Technology, Okayama University Kaken ID publons researchmap
Abstract
Biogenic microtubular iron oxides (BIOXs) derived from Leptothrix spp. are known as promising multifunctional materials for industrial applications such as ceramic pigments and catalyst carriers. Here, we report unprecedented BIOX products with additive depositions of various metallic elements prepared by a newly devised "two-step" method using an artificial culture system of Leptothrix cholodnii strain OUMS1; the method comprises a biotic formation of immature organic sheaths and subsequent abiotic deposition of Fe and intended elements on the sheaths. Chemical composition ratios of the additional elements Al, Zr, and Ti in the respective BIOXs were arbitrarily controllable depending on initial concentrations of metallic salts added to reaction solutions. Raman spectroscopy exemplified an existence of Fe-O-Al linkage in the Al-containing BIOX matrices. Time-course analyses revealed the underlying physiological mechanism for the BIOX formation. These results indicate that our advanced method can contribute greatly to creations of innovative bioderived materials with improved functionalities.
Published Date
2020-10-16
Publication Title
ACS Omega
Volume
volume5
Issue
issue42
Publisher
American Chemical Society
Start Page
27287
End Page
27294
ISSN
2470-1343
Content Type
Journal Article
language
英語
OAI-PMH Set
岡山大学
Copyright Holders
© 2020 American Chemical Society
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isVersionOf https://doi.org/10.1021/acsomega.0c03574