This study aimed to investigate the adsorption of three commercial reactive dyes using extracellular polymeric substances (EPS) extracted from waste sludge a beer wastewater treatment plant in Hanoi, Vietnam. EPS was by HCHO-NaOH method and characterized measuring kaolin flocculation activity, dry weight, chemical composition, functional groups. Adsorption on conducted Jartest at different pH v...

BackgroundStudies with emphasis on pure and mixed-species biofilms are of significant importance in understanding biofilm formation mechanisms during microbial infections. This research aims to evaluate pure- dual-species Escherichia coli (code A), Staphylococcus aureus B), Klebsiella pneumoniae C) Pseudomonas aeruginosa D) pathogenic bacterial species their production exopolysaccharides at lab...

A biofilm is complex aggregation of microorganisms growing on a solid substrate. These adherent cells are embedded within self-produced matrix of extracellular polymeric substance (EPS). Biofilms grow in the three stage process. Initially they get attached to the substratum, bacterial growth and division leads to colonization of the surrounding area and the formation of biofilms. Mature biofilm...

This work shines light on the role of extracellular polymeric substance (EPS) in formation and preservation elemental sulfur biominerals produced by sulfur-oxidizing bacteria. We characterized particles within a Sulfurovum -rich biofilm Frasassi Cave System (Italy). The adopt spherical bipyramidal morphologies, display both stable (α-S 8 ) metastable (β-S crystal structures. Elemental is embedd...

Complexity of bacterial biofilms is generally due to their composition in terms of microorganisms as well as in the diversity of their matrix components. The commonly described extracellular polymeric substances (EPS) are exopolysaccharides (ePS), exoproteins (ePN) and extracellular DNA (eDNA). Besides, several studies have shown that the ePN are the most abundant compound within a biofilm [1]....

DNA is a common extracellular matrix component of bacterial biofilms. We find that bacteria can spontaneously order in a matrix of aligned concentrated DNA, in which rod-shaped cells of Pseudomonas aeruginosa follow the orientation of extended DNA chains. The alignment of bacteria is ensured by elasticity and liquid crystalline properties of the DNA matrix. These findings show how behavior of p...

Abstract Abiotic variables, such as weather and tidal forces, are potentially important biotic factors (growth, predation, competition) in driving the variability of microphytobenthic (MPB) biomass on intertidal flats. Patterns spatial distribution temporal MPB Chl. a, sediment Extracellular Polymeric Substances (EPS) benthic diatom species composition were investigated during daily sampling sp...