Influence of Ni2+ on urease activity produced by biofilms of Arthrobacter oxydans 1388
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2014-01-01
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Abstract
New TiO2-based hybrid materials composed of an organic polymer, cellulose acetate butyrate and copolymer of acrylonitrile acrylamide (AN + AA) were prepared. The effectiveness of immobilization of microbial strain Arthrobacter oxydans 1388 on the newly synthesized hybrid membranes was investigated by biochemical methods. The obtained results revealed that the matrix more suitable for biofilm formation was composed of organic polymers without a metal component in the membrane composition. The influence of Ni2+ on urease activity produced by biofilms was investigated. The experimental results demonstrated that 2 mg L -1 concentration of Ni2+ in the nutrient medium is more appropriate for biofilm proliferation. © 2014 The Author(s). Published by Taylor & Francis.