Biofilms: An Enigmatic Biochemistry of Microbial Life
*Rao T S Department Of Biochemistry, India
*Corresponding Author: Rao T S
Department Of Biochemistry, India Email:email@example.com
Published on: 2018-12-01
Biofilms constitute a consortium of biotic elements like bacteria, cyanobacteria and algae attached to a substratum by microbially produced extracellular polysaccharide matrix which entraps soluble and particulate matter, immobilizes extracellular enzymes and acts as a sink for nutrients and inorganic elements to further microbial life
Biofilms; Biochemistry; Microbial life; Biotic elements
The biofilm composition may vary both spatially and temporally and greatest differences are usually associated with shifts in the relative importance of autotrophic and heterotrophic microorganisms. A prerequisite of biofilm formation is that bacteria should get close enough to a surface. As bacteria approach a surface several forces, both attractive and repulsive, come into play. At about 10–20 nm distance from the surface, the negative charges on the bacterial surface are repelled. This repulsion could, however, be overcome by attractive van der Waals forces between the bacterial cells and the surface as well as the use of fimbriae and flagella of a bacterial cell to provide mechanical attachment to the surface.