Please use this identifier to cite or link to this item:
Title: Single-crystalline MFe2O4 nanotubes/nanorings synthesized by thermal transformation process for biological applications
Authors: Fan, H.-M. 
Yi, J.-B. 
Yang, Y.
Kho, K.-W.
Tan, H.-R.
Shen, Z.-X.
Ding, J. 
Sun, X.-W.
Olivo, M.C. 
Feng, Y.-P. 
Keywords: Biological applications
Cubic spinel ferrites
Magnetic properties
Thermal transformation
Issue Date: 22-Sep-2009
Citation: Fan, H.-M., Yi, J.-B., Yang, Y., Kho, K.-W., Tan, H.-R., Shen, Z.-X., Ding, J., Sun, X.-W., Olivo, M.C., Feng, Y.-P. (2009-09-22). Single-crystalline MFe2O4 nanotubes/nanorings synthesized by thermal transformation process for biological applications. ACS Nano 3 (9) : 2798-2808. ScholarBank@NUS Repository.
Abstract: We report a general thermal transformation approach to synthesize single-crystalline magnetic transition metal oxides nanotubes/nanorings including magnetite Fe3O4, maghematite γ-Fe 2O3, and ferrites MFe2O4 (M = Co, Mn, Ni, Cu) using hematite α-Fe2O3 nanotubes/nanorings template. While the straightforward reduction or reduction-oxides process was employed to produce Fe3O4 and γ-Fe2O3, the α-Fe2O3/M(OH)2 core/shell nanostructure was used as precursor to prepare MFe2O 4 nanotubes via MFe2O4-x (0 < x < 1) intermediate. The transformed ferrites nanocrystals retain the hollow structure and single-crystalline nature of the original templates. However, the crystallographic orientation-relationships of cubic spinel ferrites and trigonal hematite show strong correlation with their morpologies. The hollow-structured MFe2O4 nanocrystals with tunable size, shape, and composition have exhibited unique magnetic properties. Moreover, they have been demonstrated as a highly effective peroxidase mimic catalysts for laboratory immunoassays or as a universal nanocapsules hybridized with luminescent QDs for magnetic separation and optical probe of lung cancer cells, suggesting that these biocompatible magnetic nanotubes/nanorings have great potential in biomedicine and biomagnetic applications. © 2009 American Chemical Society.
Source Title: ACS Nano
ISSN: 19360851
DOI: 10.1021/nn9006797
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.


checked on Sep 24, 2020


checked on Sep 24, 2020

Page view(s)

checked on Sep 20, 2020

Google ScholarTM



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.