<p>This study aimed to explore the effect of pure oxygen aeration on generation soluble microbial products (SMP) when activated sludge was under toxic stress condition phenol. Two parallel sequencing batch reactors, one with air and other aeration, were used investigate relationships among effluent chemical demand (COD), N-acyl-homoserine lactones (AHLs), community, extracellular polymeri...

Free anammox bacteria are superior in growth rate, but poor sedimentation performance limits their application sewage treatment. In this study, we investigated how to form aggregates of free improve performance. Calcium addition tests proved that could aggregate and a larger entirety with better through calcium cross-linking alginate-like exopolysaccharides (ALEs). This was indicated by the par...

Context: Some recent reports have indicated that almost 80% of clinical infections in humans biofilm origin and impose additional healthcare costs. This study was an updated review extracellular polymeric substance matrix (biofilm) formation elaborated on its significance, diagnosis, therapeutic approaches. Evidence Acquisition: narrative reviewed the most information significance microbial set...

introduction: the cell surface glycoconjugate and extracellular matrix may mediate extracellular signals which decide the fate of the cells during tissue interactions. the proper development of cornea needs cellular interaction between surface epithelium, neural crest and developing lens. materials and methods: 50 pregnant rats were chosen and the embryos from pernatal day11-to 20 and postnatal...

Despite many advances in research on photosynthetic carbon fixation in marine diatoms, the biophysical and biochemical mechanisms of extracellular polysaccharide production remain significant challenges to be resolved at the molecular scale in order to proceed toward an understanding of their functions at the cellular level, as well as their interactions and fate in the ocean. This review cover...

Controlled degradability in response to the local environment is one of the most effective strategies to achieve spatiotemporal release of genes from a polymeric carrier. Exploiting the differences in reduction potential between the extracellular and intracellular environment, disulfides are frequently incorporated into the backbone of polymeric drug delivery agents to ensure efficient intracel...