Visualization of different pathways of DNA release from interpolyelectrolyte complex
Article Abstract:
Fluorescence microscopy is used for visualizing the release of double-stranded DNA from its interpolyelectrolyte complex with positively charged poly(allylamine hydrochloride) though exchange reaction with added polyanion, poly(sodium styrenesulfonate). The switching of pathway of DNA release is due to the screening of electrostatic repulsion in charged sequences of naked DNA and the decrease of the osmotic pressure of counterions.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2007
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Polyelectrolytes in electric fields
Article Abstract:
The effect of an electric field on a highly charged polyelectrolyte (PE) chain is investigated by using Brownian-dynamics simulation methods and a combination of different scaling arguments. It is observed that for highly charged PEs in the collapsed phase, a nonequilibrium unfolding transition occurs at sufficiently high electric fields where the PE aligns parallel to the external field.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2003
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- Abstracts: Novel water-soluble micellar interpolyelectrolyte complexes. Colloidal complexes obtained from charged block copolymers and surfactants: a comparison between small-angle neutron scattering, cryo-TEM, and simulations
- Abstracts: Analysis of compacted semiflexible polyanions visualized by atomic force microscopy: influence of chain stiffness on the morphologies of polyelectrolyte complexes.