Ionic effects in semi-dilute biopolymer solutions: A small angle scattering study

Systematic investigations using neutron and X-ray small angle scattering in near-physiological salt solutions were made to reveal the effect of polymer concentration, pH, and calcium ion concentration on the structure of semi-dilute solutions of four model biopolymers [polyaspartic acid, DNA, chondr...

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Bibliographic Details
Published in:The Journal of chemical physics 2018-10, Vol.149 (16), p.163312-163312
Main Authors: Horkay, Ferenc, Basser, Peter J., Hecht, Anne-Marie, Geissler, Erik
Format: Article
Language:English
Subjects:
Barium
Biopolymers
Biopolymers - chemistry
Calcium chloride
Calcium ions
Chemical Physics
Condensed Matter
Deoxyribonucleic acid
Dependence
Dilution
Divalent cations
DNA
Hyaluronic acid
Hydroxyapatite
Ion concentration
Ions
Magnesium
Manganese
Models, Chemical
Osmolar Concentration
Peptides - chemistry
Physics
Physiological effects
Polyelectrolytes
Polymers
Proteins - chemistry
Saline solutions
Scattering, Small Angle
Sheaths
Small angle X ray scattering
Soft Condensed Matter
Solutions
Special Topic: Chemical Physics of Charged Macromolecules
Strontium
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Summary:Systematic investigations using neutron and X-ray small angle scattering in near-physiological salt solutions were made to reveal the effect of polymer concentration, pH, and calcium ion concentration on the structure of semi-dilute solutions of four model biopolymers [polyaspartic acid, DNA, chondroitin sulfate, and hyaluronic acid (HA)] representing typical backbone structures. In the low q range (
ISSN:0021-9606
1089-7690
DOI:10.1063/1.5028351