A scientist works with a microscopeMOSCOW, Jan 15Russian physicists have mathematically described the differences in the movement of pathogenic and non-pathogenic bacteria of Escherichia coli, in the future this will allow creating express tests, RIA Novosti was told in the press service of the Joint Institute for High Temperatures (JIHT) of the Russian Academy of Sciences. «After analyzing the nature of the movement of individual bacteria and using to describe it developed at the JIHT RAS programs for studying the movement of active particles, scientists mathematically described the differences in the characteristics of the movement of pathogenic and non-pathogenic E. coli,” the report says. It is noted that such bacteria have a similar structure and number of flagella, but interact differently with the human body. The work was jointly carried out by scientists from the Gamaleya Center, the Joint Institute for High Temperatures of the Russian Academy of Sciences and the Peoples' Friendship University of Russia. The scientists managed to establish a connection between the characteristics of the movement of bacteria and their ability to infect human epithelial cells. Previously, it was assumed that the nature of the movement would be the same for microorganisms with a similar structure, length and number of flagella.In Japan, for the first time, surgery was performed on the spine using iPS cells. Based on the results obtained, rapid tests can be created that will allow us to determine pathogenic and non-pathogenic microorganisms in just a minute, as well as analyze their sensitivity to antibiotics by changing the trajectories of movement, the press service noted. .As Oleg Petrov, director of the Joint Institute for High Temperatures of the Russian Academy of Sciences, explained, quoted by the press service, in recent years, active Brownian particles, which are able to convert the energy of the environment into the energy of their own motion, are of great interest to scientists. He explained that such particles can be either synthetic, such as active colloids or nanorobots for drug delivery, or biological. «Bacteria are a classic example of an active Brownian particle. Many of them are able to move in space using special devices — flagella,» said Petrov.
