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Reference type: Conference Proceeding
Authors: Rackow B, Süssenbach D
Publication date: 1968
Article title: In vitro experiments to impinge molecular folding information on organic polymers.
Page numbers: 246-249

Editors: Drischel H
Publisher: Karl Marx University
City: Leipzig
Volume number: 1st Biokybernetik, Mater. Int. Symp.

Abstract: The interaction between phenolmelamine copolymers and phthalocyaninetetrasulfonic acid (I) was studied as a model for the immunological binding between protein chains and ionic groups. Phenol, 19 parts, was mixed with 1 part of melamine. In imprinting, the Cl- of the resin and H+ of I form HCl. Electrostatic bonding between each "guest" mol. and 4 chains of resin gives an imprint at room temp. I was then desorbed in H2O at pH 10-12. Adsorption isotherms for I were measured between pH 2.5 and 6.0 for both imprinted and unimprinted resins. The straight lines always showed greater adsorption on the imprinted resin, though the difference decreased with increasing pH. At higher concns. at pH 3.2, the imprinted resin was always better than unimprinted, but when base-free there was no difference in adsorption between imprinted and unimprinted. With methyl orange (II) the adsorption of the imprinted resin was slightly better than the unimprinted. II isotherms were straight lines at all concns., whereas I was adsorbed to a much greater extent at lower concns.

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