Biofilms. Biofilm . Biological Film . Biological Layer . Encrustations, formed from microbes (bacteria, algae, fungi, plankton, or protozoa) embedding in extracellular polymers, that adhere to surfaces such as teeth (DENTAL DEPOSITS); PROSTHESES AND IMPLANTS; and catheters. Biofilms are prevented from forming by treating surfaces with DENTIFRICES; DISINFECTANTS; ANTI-INFECTIVE AGENTS; and antifouling agents. . 1.00
Biological Filters. Biofilters . Percolating Filters . Dripping Filters . Spray Filters . Adhered Biomass . Biological Filtration . Adhered Biomass Models . Adhered Biomass Reactors . Trickling Filters . Trickling Biofilters . A fixed bed of rocks, lava, coke, gravel, slag, polyurethane foam, sphagnum peat moss, ceramic, or plastic media over which sewage or other wastewater flows downward that causes a layer of microbial slime (biofilm) to grow, covering the bed of media. . 0.85
Biological Products. Biologic Products . Products, Biological . Products, Biologic . Products, Natural . Biologics . Natural Products . Biologic . Complex pharmaceutical substances, preparations, or matter derived from organisms usually obtained by biological methods or assay. . 0.69