Objective. To evaluate effect of «Haemoblock»TM preparation on in vitro bacterial colonization. Materials and Methods. Activity of «Haemoblock»ТМ product on the growth and colonization of S. aureus АТСС 25923, S. epidermidis ATCC 28922, E. coli АТСС 25922, P. aeruginosa АТСС 27853 cells in the suspension and on the surface of monofilament macroporous polyester mesh was evaluated. Results. This product at concentration of 0.062% and above inhibited bacterial growth and reduced biofilm mass and

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... cterial cell viability. In addition, the short-term exposure of the mesh implant to the tested product resulted in inhibition of the abiotic surface contamination. Conclusions. «Haemoblock»TM product allows not only to ensure hemostasis in open and laparoscopic surgery, but also to reduce the bacterial cell count in the surrounding tissues in the intra- and post-operative periods.