Abstract: Current invention relates to biotechnology sphere and particularly describes the novel approach for non-attached biofilm-like aggregates fabrication in vitro under artificial microgravity environment conditions. Non-attached aggregates are grown under magnetic levitation conditions achieved by placing microorganisms suspension in paramagnetic nutrient medium in inhomogeneous magnetic field created by specifically developed permanent magnets. The invention method can produce biofilm-like aggregates from protozoa, fungi, microalgae, Gram-positive or Gram-negative bacteria and/or a consortium. The presented technology can be used for development of medications for treatment of chronic infections, antiseptics and solutions for surfaces, as well as in other applications requiring the use of non-attached biofilm-like aggregates model.

Abstract: The present invention generally relates to biofabrication technology and, more particularly, to systems and methods for manufacturing three-dimensional constructs made of various materials using scaffold-free, nozzle-free and label-free magnetic levitation in non-toxic paramagnetic medium. The essence of the method consists of rapid levitational assembly in the construct's heterogenous magnetic field from various materials, such as, for example, tissue spheroids, single-cell suspension, microorganisms, peptides, potassium phosphate granules, which are chaotically distributed in the volume of culture medium. The construct is formed in a specific area where a magnetic trap is formed as a result of the combined forces of gravitational and magnetic fields. In this area, the gravitational pull is compensated and particles of material are forced together.