Escherichia coli templated iron oxide biomineralization under oscillation. Issue 25 (21st April 2021)

• Record Type: Journal Article
• Authors: He, Panpan; Guo, Junhui; Lei, Liwen; Jiang, Jiafeng; Li, Qichang; Hu, Zhiyi; Su, Baolian; Fu, Zhengyi; Xie, Hao
• Is Part Of: RSC advances. Volume 11:Issue 25(2021)
• Page Start: 15010
• Page End: 15016
• Publication Date: 2021-04-21
• Subjects: Chemistry -- Periodicals; 540.5
• DOI: 10.1039/d1ra00847a
• Languages: English
• ISSNs: 2046-2069

Abstract

Abstract : Iron biomineralization on Escherichia coli surface under oscillation was attempted and produced iron biominerals with acicular and banded morphology as well as photocatalytic and electrocatalytic activities. Abstract : Motility is significant in organisms. Studying the influence of motility on biological processes provides a new angle in understanding the essence of life. Biomineralization is a representative process for organisms in forming functional materials. In the present study, we investigated the biomineralization of iron oxides templated by Escherichia coli ( E. coli ) cells under oscillation. The formation of iron oxide minerals with acicular and banded morphology was observed. The surface charge of E. coli cells contributed to the biomineralization process. The surface components of E. coli cells including lipids, carbohydrates and proteins also have roles in regulating the formation and morphology of iron oxide minerals. As-prepared mineralized iron oxide nanomaterials showed activity in photocatalytic degradation of methylene blue as well as in electrocatalytic hydrogen evolution reaction. This study is helpful not only in understanding motility in biological processes, but also in developing techniques for fabricating functional nanomaterials.