In Vitro Hemocompatibility of Arabinogalactan, Betulin, and Betulin Derivatives.

The hemocompatibility of arabinogalactan, betulin and its derivatives was evaluated in vitro and samples suitable for creation of nanostructures or materials in contact with blood were selected. The prospects of arabinogalactan as a component of the construct (nanostructure) for drug delivery are due to the fact that it did not affect blood/plasma coagulation (at concentrations of 0.0033-3.333 mg/ml and 0.00465-4.65 mg/ml, respectively), platelet aggregation (0.00182-0.182 mg/ml), and demonstrated the degree of erythrocyte hemolysis less than 3%. Sodium salt of betulin monosulfate, diarginine salt of betulin disulfate (up to 0.465 mg/ml), and especially betulin and allobetulin formate with procoagulant properties (degree of hemolysis less than 2%) can be used to create a material, for example, sponge, gel, active against blood coagulation.