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On the structure of poly(3-hydroxybutanoic acid) in solution and in phospholipid bilayers. Circular dichroism and fluorescence spectroscopy with oligo(3-hydroxybutanoic acid) derivatives
Oligomers of (R)-3-hydroxybutanoic acid consisting of 8, 16, and 32 HB units have been investigated by CD spectroscopy in solution and in a racemic phospholipid bilayer and the distance between the fluorescent groups was calculated, thus providing information about the conformation of the OHB chain.
Oligoesters of (R)-3-Hydroxybutanoic Acid: Transmembrane Transport of Ca2+ across Vesicle Bilayers
Oligomers of (R)-3-hydroxybutanoate (OHB) have previously been shown to generate nonselective single-channel conductance through planar phospholipid bilayers in patch-clamp experiments (voltage induced), and the effect of OHBs on the Ca2+ ion permeability through vesicle bilayers is studied.
Synthesis of Amino‐Acid‐, Carbohydrate‐, Coumarin‐, and Biotin‐Labelled Oligo[(R)‐3‐Hydroxybutanoic Acids] (OHB)
The benzyl esters 1 – 3 of oligo[(R)-3-hydroxybutanoic acids] (OHB) containing 2, 16, or 32 HB units were coupled at the hydroxy terminus with arginine, glucose, and 7-(dimethylamino)coumarin-4-acetic acid to give the corresponding `labelled' OHB acids.