Unravelling the complex adsorption behavior of extracellular polymeric substances onto pristine and UV-aged microplastics using two-dimensional correlation spectroscopy

Research progress on the origin, fate, impacts and harm of microplastics and antibiotic resistance genes in wastewater treatment plants

“…Plasmid-free or plasmid-carrying ARGs complete bacterial transformation and conjugation via transmembrane transport or cell fusion. In addition, EPS secreted by bacteria constitute a complex extracellular matrix consisting mainly of polysaccharides, proteins, and extracellular DNA 134 . EPS play an important role in promoting the HGT of bacteria.…”

“…The reason for the low SPSs and SPNs levels may be related to the presence of MPs inhibiting the conversion of organic matter from solid to liquid phase. The inhibited dissolution may be due to an increase in sludge particle size or a decrease in the production of EPS 134 .…”

Phototransformation of extracellular polymeric substances in activated sludge and their interaction with microplastics

“…Before and after phototransformation, the protein-like components in S-EPS and TB-EPS are first involved in adsorption binding but humic-like fractions in LB-EPS, which may be due to the higher content of protein substances in S-EPS, TB-EPS, and the higher content of humic-like fractions in LB-EPS. 41 …”

Polystyrene microplastics interaction and influence on the growth kinetics and metabolism of tilapia gut probiotic Bacillus tropicus ACS1

“…The findings from adsorption and spectral studies revealed that the interaction takes places through hydrogen bonds of the EPS and the carbonyl and methylene groups of the polymer moieties. 32 Reports on the production of EPS by B. tropicus strains are limited. In a recent study, two strains of Bacillus tropicus isolated from soil samples were reported to exhibit active EPS production and was regarded to be beneficial for plant growth as PGPR (plant growth promoting Rhizobacterium ).…”