2.1.2. Polymers

The following polymers were used to modify the biological membranes of the morphotic blood elements of *Sus domestica*: PS-100 and PS-200 (purchased from Sigma Aldrich, Saint Louis, MO, USA), PS-NH2-100 (purchased from Polysciences, Hirschberg an der Bergstrasse, Germany), and PS-NH2-200 (purchased from Bang Laboratories, Fishers, IN, USA). Each polymer was used at the concentrations of 0.002, 0.01, 0.1, and 0.5 mg/mL. The polymers were diluted to the appropriate concentration using 0.155 M sodium chloride, in which the blood was also suspended for physiological conditions. In preliminary experimental studies, the stability and durability of the tested polymers in the electrolyte solution were investigated using the DLS method. The tests were performed immediately after mixing morphotic blood elements with polymers and after 1 h and 3 h of exposure to plastic particles.
