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Complex solutions under shear and pressure: a rheometer setup for X-ray scattering experiments
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2017 (English)In: Journal of Synchrotron Radiation, ISSN 0909-0495, E-ISSN 1600-5775, Vol. 24, 646-652 p.Article in journal (Refereed) Published
Abstract [en]

A newly developed high-pressure rheometer for in situ X-ray scattering experiments is described. A commercial rheometer was modified in such a way that X-ray scattering experiments can be performed under different pressures and shear. First experiments were carried out on hyaluronan, a ubiquitous biopolymer that is important for different functions in the body such as articular joint lubrication. The data hint at a decreased electrostatic interaction at higher pressure, presumably due to the increase of the dielectric constant of water by 3% and the decrease of the free volume at 300bar.

Place, publisher, year, edition, pages
INT UNION CRYSTALLOGRAPHY , 2017. Vol. 24, 646-652 p.
Keyword [en]
rheology, pressure, small-angle X-ray scattering, complex solutions, hyaluronan
National Category
Chemical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-207663DOI: 10.1107/S1600577517002648ISI: 000400385400012PubMedID: 28452756Scopus ID: 2-s2.0-85018331890OAI: oai:DiVA.org:kth-207663DiVA: diva2:1104926
Note

QC 20170602

Available from: 2017-06-02 Created: 2017-06-02 Last updated: 2017-11-10Bibliographically approved

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Dédinaité, AndraClaesson, Per M.

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