Change search
ReferencesLink to record
Permanent link

Direct link
Delocalized surface modes reveal three-dimensional structures of complex biomolecules
2008 (English)In: The Journal of Physical Chemistry C, ISSN 1932-7447, E-ISSN 1932-7455, Vol. 112, no 20, 7531-7534 p.Article in journal (Refereed) Published
Abstract [en]

Interfaces are important for many processes in chemistry, physics, and biology. Crucial to their properties are the details of the three-dimensional structure of the participating (macro) molecules. Vibrational Sum Frequency Generation (VSFG) is a tool specifically suited to probing the first few atomic layers of an interface. Traditionally, interfaces are probed by mapping localized vibrational modes. Here, we show that the three-dimensional structure of large interfacial biomolecules can be probed by measuring delocalized vibrational backbone modes, which appear to be extremely sensitive to changes in the skeletal structure. We demonstrate that for three different films of chemically identical poly(lactic acid) polymer, we can observe dramatic changes in the three-dimensional arrangement of the surface molecular backbones. This type of information could not be obtained from probing only localized group modes.

Place, publisher, year, edition, pages
2008. Vol. 112, no 20, 7531-7534 p.
URN: urn:nbn:se:kth:diva-17534DOI: 10.1021/jp801254yISI: 000255905400004OAI: diva2:335578
QC 20100525Available from: 2010-08-05 Created: 2010-08-05Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full text

Search in DiVA

By author/editor
Johnson, Claes Magnus
In the same journal
The Journal of Physical Chemistry C

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 18 hits
ReferencesLink to record
Permanent link

Direct link