Grombe, R. ; Gouzy, M.-F. ; Maitz, M.F. ; Freudenberg, U. ; Zschoche, St. ; Simon, F. ; Pompe, T. ; Sperling, C. ; Werner, C.
Sulfated glycopolymer thin films - preparation, characterization, and biological activity
The impact of heparinoid characteristics on model surfaces obtained from immobilization of sole sulfate groups as well as sulfated glycosides, sulfated cellulose, and definite heparin has been investigated. The obtained layers were physico-chemically characterized regarding film thickness, chemical composition, wettability, and surface morphology. Antithrombin adsorption, studied by fluorescence labeling, revealed a strong dependence on the presence of glycosidic structures and on the molecular weight of the grafted saccharide. On contact with whole blood, the coatings resulted in a diminished plasmatic and cellular coagulation in vitro, which did not reflect well the antithrombin binding. Therefore, more complex activating pathways are discussed.
Source
Macromolecular Bioscience 7, 195-200
DOI
http://dx.doi.org/10.1002/mabi.200600210
Published
February 2007
Sulfated glycopolymer thin films - preparation, characterization, and biological activity
The impact of heparinoid characteristics on model surfaces obtained from immobilization of sole sulfate groups as well as sulfated glycosides, sulfated cellulose, and definite heparin has been investigated. The obtained layers were physico-chemically characterized regarding film thickness, chemical composition, wettability, and surface morphology. Antithrombin adsorption, studied by fluorescence labeling, revealed a strong dependence on the presence of glycosidic structures and on the molecular weight of the grafted saccharide. On contact with whole blood, the coatings resulted in a diminished plasmatic and cellular coagulation in vitro, which did not reflect well the antithrombin binding. Therefore, more complex activating pathways are discussed.
Source
Macromolecular Bioscience 7, 195-200
DOI
http://dx.doi.org/10.1002/mabi.200600210
Published
February 2007
