Clinical Microbiology and Infectious Diseases

Microbial Biofilms

Biofilms are the aggregation of microbial cells, which are associated with the plaque, pond scum, or the slimy build up in sink. This formation involves sequence of steps like conditioning, attachment, metabolism, and detachment. It consists of water channels, EPS (Exopolysaccharide), and EDNA (Environmental DNA), which plays an important role in nutrient circulation, its development, and structure stabilization. Resistance of planktonic bacteria against antimicrobial agents gets increased  the formation of biofilm, which may be the presence of diffusive barrier EPS or neutralizing enzyme, cells undergoing starvation, or due to spore formation. There are numerous factors, which affects biofilm formation such as substratum effects, conditioning film on substratum, hydrodynamics, characteristics of the aqueous medium, cell characteristics, and environmental factors. It can cause industrial, medical, and household damage and is a reason for loss of billions of dollars every year. Development of biofilm on catheters, medical implants. A major cause of infections and surface in almost an irreversible manner. It exists in variety of forms like dental diseases in humans. Examples include Plaque, Native Valve Endocarditis, Otitis media, Prostatitis, Cystic fibrosis, Periodontitis, Osteomyelitis, etc.,Biofilms are the aggregation of microbial cells, which are associated with the plaque, pond scum, or the slimy build up in sink. This formation involves sequence of steps like conditioning, attachment, metabolism, and detachment. It consists of water channels, EPS (Exopolysaccharide), and EDNA (Environmental DNA), which plays an important role in nutrient circulation, its development, and structure stabilization. Resistance of planktonic bacteria against antimicrobial agents gets increased on the formation of biofilm, which may be the presence of diffusive barrier EPS or neutralizing enzyme, cells undergoing starvation, or due to spore formation. There are numerous factors, which affects biofilm formation such as substratum effects, conditioning film on substratum, hydrodynamics, characteristics of the aqueous medium, cell characteristics, and environmental factors. It can cause industrial, medical, and household damage and is a reason for loss of billions of dollars every year. Development of biofilm on catheters, medical implants. A major cause of infections and surface in almost an irreversible manner. It exists in variety of forms like dental diseases in humans. Examples include Plaque, Native Valve Endocarditis, Otitis media, Prostatitis, Cystic fibrosis, Periodontitis, Osteomyelitis, etc.,

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