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In order to choose the proper method for evaluating the antithrombin activity in samples of chitosan polysulphate (CP) with different polymerization degrees and sulphation degrees, we estimated the ability of direct anticoagulants to depress the coagulability of recalcified sheep blood using the third international heparin standard (A1 - in vitro system)(More)
A process for the formation of cellulose nanospheres appropriate as biodegraded bulking agent for composite materials has been considered. The properties of the starting material and resulting dispersions of cellulose nanospheres were studied. It was found that the characteristic structural modification of the cellulose nanospheres was cellulose II, and(More)
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