Analysis of compacted semiflexible polyanions visualized by atomic force microscopy: influence of chain stiffness on the morphologies of polyelectrolyte complexes.

Article Abstract:

Tapping mode atomic force microscopy followed by quantitative image analysis was used to investigate the morphologies of the compacted semiflexible biological polyanions alginate, acetan, circular plasmid DNA, and xanthan. It was observed that the compacted xanthan at room temperature displayed a number of racquets and other morphologies similar to the reported intermediate, metastable states by simulations.

All Other Basic Organic Chemical Manufacturing, Biological Product (except Diagnostic) Manufacturing, Drugs, Industrial Organic Chemicals, Deoxyribonucleic Acid, Xanthates, Usage, DNA, Atomic force microscopy

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Induced orientation of alpha-helical polypeptides in polyelectrolyte multilayers

Article Abstract:

Polyelectrolyte multilayers (PEMs) consisting of stiff polypeptides at texturized silicon substrates were examined. It was suggested that PEMs exposing charged alpha- helical polypeptides in the outermost layer could be used to create biomimetic and biosensor surfaces.

All Other Basic Inorganic Chemical Manufacturing, Industrial inorganic chemicals, not elsewhere classified, Silicon, Polypeptides

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