At present an actual problem for the surgeon is the choice of suture material. Due to the absence of own manufacturing of suture material in Belarus in the iatrotechnics market the big variety of surgical threads both of popular and little-known manufacturers has been presented. In this connection the performance of research and the analysis of physical properties of suture material have been quite actual. We carried out the comparative analysis of capillarity, as one of the properties of suture material, surgical threads presented in the market of iatrotechnics in Belarus and threads modified by polyparaxilelen covering.

Nanotechnology as the science began to be formed in the end of the twentieth century, that first of all has been connected with basic works of Norio Taniguchi and Richard Fejnman and the invention in 1981 of a scanning tunnel microscope by Gerd Binnig and Henry Rorer from Zurich laboratories IBM (Switzerland). Rapid development nanotechnology has begun in the beginning of the twenty first century and is connected with the statement and financing of national programs of development of this branch of a science in the USA, Japan and China. For today nanotechnology as branch of a science greater perspective directions in development of information technologies and electronics, methods of reception of materials and open their processings, preservation of the environment and power, biology and medicine, an agriculture, aircraft and the space industry. In clause the basic historical and basic moments of development nanotechnology as sciences are stated. It is emphasized on already existing and actively developed opportunities nanotechnology as sciences in medical branch. Clause is of interest as in general educational and scientific sense.

Purpose: to study the characteristics of friction of wattled surgical threads made from traditional sutural material. Materials and methods . The friction of dry and wet threads was studied on the apparatus «ComTen 94C» by the original developed technique. We fixed a cylindrical mandrel with a diameter of 40 mm, wrapped up with a rag of suede skin 18 cm long between the captures in horizontal position. After fixing the end of the thread in a mobile capture of the test car we made one turn round the mandrel and suspended weight of 50 g to the second end of the thread. The speed of the mobile capture movements made up 100 mm/min. Results. The experimental tests revealed the best sample in the group - the surgical thread of Ethibond firm covered with polibutilate. The polymeric covering of the surgical threads «Supramid Ergon sutramed» makes it possible to achieve the optimum indicators of friction in the group of the threads made from caprone. The best sample among the surgical threads made from silk is a thread by Silkam B/Braun firm with a covering made from wax and silicone. Conclusion. The modification of surgical threads by drawing a covering makes it possible to achieve optimum indicators of friction, to improve the handling qualities and gives threads the quality of autraumatics.