Russian scientists have created a mathematical model that makes it possible to move drug production into space. A study by scientists at Perm National Research Polytechnic University was published in the journal Microgravity Science and Technology. The scientists derived a physical equation in which vibration and gravity suppress each other. The application of this formula will help improve conditions for growing special protein crystals on space stations and make it possible to transfer drug production to the ISS. "By conducting a study of vibrogravitational convection - a type of heat transfer, in which internal energy is transferred by the flows of the substance itself in a square cavity - we were able to control the structure of the fluid flow and set its motion within the square. The parameters can be chosen so that the fluid flow inside the cavity almost stops. Consequently, nothing will prevent the growth of protein crystals," said Sergey Plotnikov, one of the researchers. At the moment, protein crystals are used to develop the latest drugs to combat cancer, muscular dystrophy and more. The crystals grow in special solutions, while the liquid itself must remain at rest in a closed vessel. It is impossible to grow these crystals on Earth because of the action of gravity. As for the ISS, it has a small gravitational field, and there are constant vibrations on it, as well as it is in a vacuum, this prevents the vibrations from correctly dissipating. At the level of a mathematical model, scientists from Perm have solved this problem. According to statements of researchers, thanks to their development it will be possible to create production of crystals and drugs on the ISS or in the future on the factories created in space. However, this is still a mathematical model, and further research is needed to understand how crystal production can be deployed in space.