Advances in Chemistry Research, volume 21 by James C. Taylor

By James C. Taylor

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Despite the obvious sensitivity of these EPS components to BisBAL, these data also suggest that specific EPS moieties may be crucial for bioaggregation of microbial flocs. Others have shown that O-acetylation of polysaccharides facilitate the formation of gelation and “hooks”-like structures that keep bacteria cohesive in biofilms [75, 76]. Decrease in total EPS would decrease the gelation and increase electrostatic Antibacterial and Antifouling Properties … 19 repulsion among negatively charged microorganisms, which prevents bioaggregation and biofilm formation.

The kneader action is started and DBP is added drop-wise from an automatic burette. The transition from a free-flowing powder to a semi-plastic material at the point of maximum absorption (the filling of voids) results in a rapid rise in torque, which activates an automatic cutoff in burette and kneader. The volume of DBP added is registered automatically. Aggregates with a greater number of 32 Yuji Aoki particles and more complex aggregates (higher structure CB) have more voids and thus have a higher oil demand.

These inferences are further evident since BisBAL-treated B. diminuta were easily removed from membrane surfaces by rinsing with ultrapure water coupled to reductions in free and bound EPS, suggesting the central role of EPS on hydrodynamic backwashing efficiencies during microfiltration of bacterial suspensions (Fig. 5). The long-term activity of bismuth thiols is dependent on their continuous availability, since cationic bismuth thiols are readily consumed during treatment. We developed a nanoparticle-form of BisBAL (zerovalent) to potentially circumvent the limitations of soluble cationic BisBAL while maintaining their ability to prevent bacterial adhesion and disrupt established biofilms.

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