Chemistry: molecular biology and microbiology – Carrier-bound or immobilized enzyme or microbial cell;... – Enzyme or microbial cell is immobilized on or in an organic...
Patent
1981-12-28
1983-08-02
Naff, David M.
Chemistry: molecular biology and microbiology
Carrier-bound or immobilized enzyme or microbial cell;...
Enzyme or microbial cell is immobilized on or in an organic...
3 1, 435180, C12N 1106, C12N 1108, A61F 100
Patent
active
043967167
ABSTRACT:
A prosthetic polymer material is made non-thrombogenic by immobilizing apyrase on its surface. Immobilization is preferably carried out by hydrolytically activating the surface of a polyamide polymer or a polyethylene terphthalate polymer, and treating the hydrolyzed polymer with a solution of cross-linking agent and a solution of apyrase. The apyrase converts adenosine diphosphate to adenosine monophosphate and adenosine whereby the formation of thrombi is inhibited.
REFERENCES:
patent: 3705084 (1972-12-01), Reynolds
patent: 3865915 (1975-02-01), Manly
patent: 4273873 (1981-06-01), Sugitachi et al.
Patel et al., In Soluble Matrix-Supported Apyrase, Deoxyribonuclease and Cholinesterase Biochim. Biophys. Acta, vol. 178, 1969, (pp. 626-629).
Gaarder et al., Adenosine Diphosphate in Red Cells as a Factor in the Adhesiveness of Human Blood Platelets, Nature, vol. 192, 1961, (pp. 531-532).
Bartoli Francesco
Marconi Walter
Pittalis Francesco
E.N.I. Ente Nazionale Idrocarburi
Naff David M.
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