The efficacy of UV treatment to control bacterial adhesion onto hard surfaces was investigated in laboratory conditions. The major characteristics necessary for biofilm formation like extracellular polymeric substance (EPS) production, carbohydrate and protein concentration in EPS, and adhesion ability onto hard surface were studied using two bacterial strains isolated from marine biofilms. The...

Bacterial biofilms are microbial communities held together by an extracellular polymeric substance matrix predominantly composed of polysaccharides, proteins and nucleic acids. We had previously shown that Borrelia burgdorferi sensu stricto, the causative organism of Lyme disease in the United States is capable of forming biofilms in vitro. Here, we investigated biofilm formation by B. afzelii ...

A phenomenological model for the biofilm resistance against biocide activity is analyzed in this work. The effect of different biofilm physical attributes when exposed to antibiotic treatment is investigated. Pertinent aspects affecting the biofilm resistance characteristics such as transport of the bulk fluid within the reactor, diffusive-reactive transport of the dissolved phase into the biof...

Compact well settling granules were cultivated for degrading 3.9 kg m -3 d -1 of phenols. Formed granules were studied qualitatively using SEM and it was found that a large number of bacterial types including bacterial rod, cocci, diatoms are dispersed in the extracellular polymeric substance (EPS). Degradation studies show that initially the removal rate of phenol was fast but later on it beco...