Virus-Templated Near-Amorphous Iron Oxide Nanotubes

Shah, Sachin N.; Khan, Abid A.; Espinosa, Ana; Garcia, Miguel A.; Nuansing, Wiwat; Ungureanu, Mariana; Heddle, Jonathan G.; Chuvilin, Andrey L.; Wege, Christina; Bittner, Alexander M.

Abstract

© 2016 American Chemical Society. We present a simple synthesis of iron oxide nanotubes, grown under very mild conditions from a solution containing Fe(II) and Fe(III), on rod-shaped tobacco mosaic virus templates. Their well-defined shape and surface chemistry suggest that these robust bionanoparticles are a versatile platform for synthesis of small, thin mineral tubes, which was achieved efficiently. Various characterization tools were used to explore the iron oxide in detail: Electron microscopy (SEM, TEM), magnetometry (SQUID-VSM), diffraction (XRD, TEM-SAED), electron spectroscopies (EELS, EDX, XPS), and X-ray absorption (XANES with EXAFS analysis). They allowed determination of the structure, crystallinity, magnetic properties, and composition of the tubes. The protein surface of the viral templates was crucial to nucleate iron oxide, exhibiting analogies to biomineralization in natural compartments such as ferritin cages.

Citation

Shah, S. N., Khan, A. A., Espinosa, A., Garcia, M. A., Nuansing, W., Ungureanu, M., …Bittner, A. M. (2016). Virus-Templated Near-Amorphous Iron Oxide Nanotubes. Langmuir : the ACS journal of surfaces and colloids, 32(23), 5899-5908. https://doi.org/10.1021/acs.langmuir.5b04491

• Acceptance Date: May 14, 2016
• Online Publication Date: May 14, 2016
• Publication Date: Jun 14, 2016
• Deposit Date: Jun 9, 2016
• Publicly Available Date: Jun 9, 2016
• Journal: Langmuir
• Print ISSN: 0743-7463
• Electronic ISSN: 1520-5827
• Publisher: American Chemical Society
• Peer Reviewed: Peer Reviewed
• Volume: 32
• Issue: 23
• Pages: 5899-5908
• DOI: https://doi.org/10.1021/acs.langmuir.5b04491
• Keywords: Iron oxide nanotubes, Tobacco mosaic virus
• Public URL: https://hull-repository.worktribe.com/output/439260
• Publisher URL: http://pubs.acs.org/doi/abs/10.1021/acs.langmuir.5b04491
• Additional Information: This document is the Accepted Manuscript version of a Published Work that appeared in final form in Langmuir, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see http://dx.doi.org/10.1021/acs.langmuir.5b04491