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Bio-nano interaction of proteins adsorbed on single-walled carbon nanotubes
KTH, School of Biotechnology (BIO), Theoretical Chemistry.
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2009 (English)In: Carbon, ISSN 0008-6223, E-ISSN 1873-3891, Vol. 47, no 4, 967-973 p.Article in journal (Refereed) Published
Abstract [en]

We applied X-ray absorption near edge structure (XANES) spectroscopy to investigate the adsorption of proteins onto single-walled carbon nanotubes (SWCNTs). Specific XANES spectral features such as peptide C=O bonds in proteins were recognized and found to be affected by the corresponding aromatic structure of SWCNTs. Experimental data combined with first-principle calculation of the investigated nano-complex allow the understanding of adsorption mechanism and reveal that an interface interaction occurs leading to precise structural distortions of proteins. The study also demonstrates that XANES is a powerful tool to characterize structural details of proteins at the interface of complex systems.

Place, publisher, year, edition, pages
2009. Vol. 47, no 4, 967-973 p.
Keyword [en]
absorption fine-structure, inner-shell excitation, glycyl-glycine, spectroscopy, functionalization, immobilization, approximation, adsorption, energy
Identifiers
URN: urn:nbn:se:kth:diva-18247DOI: 10.1016/j.carbon.2008.11.051ISI: 000264252900005Scopus ID: 2-s2.0-59649125892OAI: oai:DiVA.org:kth-18247DiVA: diva2:336293
Note
QC 20100525Available from: 2010-08-05 Created: 2010-08-05 Last updated: 2017-12-12Bibliographically approved

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Luo, Yi

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