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Gold nanoparticle induced conformational changes in heme protein
Stockholm University, Faculty of Science, Department of Biochemistry and Biophysics.
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2011 (English)In: Journal of nanoparticle research, ISSN 1388-0764, E-ISSN 1572-896X, Vol. 13, no 12, 6755-6760 p.Article in journal (Refereed) Published
Abstract [en]

Change of alpha-helical structure of heme protein (Hb) to a beta-sheet and random coil conformation because of the interaction of glycine capped gold nanoparticles (20-60 nm) as observed from attenuation total reflectance, absorption, Fourier transform infra red, and Circular Dichroism spectroscopy has been reported in this article. Upon interaction, protein takes a cylindrical shape of length 12 mu m and diameter 0.35 mu m as revealed from scanning electron microscopy and transmission electron microscopy. The Selected-Area Electron beam Diffraction pattern shows change of crystalline structure in GNP to amorphous nature with the interaction of Hb.

Place, publisher, year, edition, pages
2011. Vol. 13, no 12, 6755-6760 p.
Keyword [en]
Hemoglobin, GNP, ATR, Ionic interaction, Conformational change, SAED pattern, Nanobiotechnology
National Category
Natural Sciences
URN: urn:nbn:se:su:diva-71145DOI: 10.1007/s11051-011-0583-9ISI: 000298056100051OAI: diva2:483933
authorCount :5Available from: 2012-01-26 Created: 2012-01-26 Last updated: 2012-01-26Bibliographically approved

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