Physics – Condensed Matter – Soft Condensed Matter
Scientific paper
2009-04-06
Europhysics Letters (EPL) 83 (2008) 48002
Physics
Condensed Matter
Soft Condensed Matter
Scientific paper
10.1209/0295-5075/83/48002
Aggregation and other interactions are suppressed for a biological semiflexible polyelectrolyte, hyaluronan (HA), when it is embedded in a mixture with another negatively charged and flexible polyelectrolyte chain, sodium polystyrene sulfonate. We see directly HA only in the mixture using Small-Angle Neutron Scattering, isotopic labelling and contrast matching. At low ionic strength, for which aggregation is usually seen for pure HA solutions, an unambiguous set of experimental results shows that we neither observe HA aggregation nor a polyelectrolyte peak (observed for solutions of single species); instead we observe a wormlike chain behaviour characteristic of single chain with a variation of the persistence length with the square of the Debye screening length, Le~\kappa^-2, as formerly predicted by Odijk and not yet observed on a polymer chain.
Bonnet Fabien
Boué François
Buhler Eric
Schweins Ralph
No associations
LandOfFree
Suppression of Aggregation in Natural-Semiflexible/Flexible Polyanion Mixtures, and Direct Check of the OSF Model using SANS does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Suppression of Aggregation in Natural-Semiflexible/Flexible Polyanion Mixtures, and Direct Check of the OSF Model using SANS, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Suppression of Aggregation in Natural-Semiflexible/Flexible Polyanion Mixtures, and Direct Check of the OSF Model using SANS will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-132912