Biomimetic synthesis of superparamagnetic iron oxide particles in proteins
Matrix-mediated in situ synthesis of monodispersed magnetite and maghemite nanoparticles (2–16 nm) was carried out using the cavities present in gels of globular proteins such as egg white and bovine serum albumin. Under stringent conditions, spatial-charge-distribution-assisted molecular recognitio...
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Published in | Journal of materials research Vol. 18; no. 6; pp. 1309 - 1313 |
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Main Authors | , , , , , |
Format | Journal Article |
Language | English |
Published |
New York, USA
Cambridge University Press
01.06.2003
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Online Access | Get full text |
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Summary: | Matrix-mediated in situ synthesis of monodispersed magnetite and maghemite nanoparticles (2–16 nm) was carried out using the cavities present in gels of globular proteins such as egg white and bovine serum albumin. Under stringent conditions, spatial-charge-distribution-assisted molecular recognition of proteins for inorganic ions led to the site- and polymorph-specific synthesis of superparamagnetic iron oxide particles. A transformation from magnetite to maghemite as a nucleating phase could be observed by partially denaturing the egg white protein, signifying the delicate role of quaternary structure of proteins under different reaction conditions, in determining the size and shape of the polymorph. |
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Bibliography: | istex:78355BCF31CDA940E985FB3B0B5EA1ED030DF671 ArticleID:06406 PII:S0884291400064062 e-mail: arvind@csnml.ren.nic.in; arvind_biom@yahoo.com ark:/67375/6GQ-X2RB42T7-G |
ISSN: | 0884-2914 2044-5326 |
DOI: | 10.1557/JMR.2003.0180 |