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The poly(styrene/acrolein) latexes were synthesized in an emul sifier-free emulsion-precipitation polymerization. Monodisperse particles from 0.30 μ m to 0.52 μ m, depending on the acrolein monomer feed, were obtained. More acrolein in the monomer feed yielded latex particles with smaller di...
The extracellular form of the K5 polysaccharide was produced, purified and characterized from a strain of Escherichia coli, the maximum fermentation yield (320 mg/L) was obtained after 15 h. The polysaccharide, recovered by precipitation with cold ethanol (80%), was purified through a pro cess...
New functional derivatives of β-cyclodextrin were obtained by grafting β-cyclodextrin with epoxides of protected polyols, such as glycidyliso propylideneglycerol, glycidyldiisopropylidenexylitol and glycidyldiisopropyl idenearabitol. The glycidyl ether of 2-pyrrolidone was also used. The...
Heparin, an antithrombogenic mucopolysaccharide, forms com plexes with lecithin and other surface-active compounds (SAC). The complexes are soluble in organic solvents. The heparin/SAC complexes have antithrombo genic activity similar to heparin. Heparinized materials, in which the heparin/SAC...
A water soluble polymer containing cell adhesive Arg-Gly-Asp- Ser (RGDS) sequence, i.e., poly(carboxyethylmethacrylamide-RGDS) conjugate poly(CEMA-RGDS), was synthesized. Poly(CEMA-RGDS) inhibited lung metastasis of B16-BL6 melanoma cells in a dose-dependent manner (20-1000 μ g) and liver...
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