AcrAB-TolC is a major efflux pump in Escherichia coli. It was reported that tolC is overexpressed and involves in improving the organic solvent tolerance level in Escherichia coli marR mutants that are resistant to several antibiotics, such as ciprofloxacin. Low and intermediate levels resistance did not improve organic solvent tolerance. Thus, in this descriptive-experimental study it was deci...

Scandium is a critical raw material with technological potential to reduce transportation costs and CO2 emissions. However, global supply market adoption are crucially impaired by the lack of high-grade Sc ores recovery strategies. A tandem nanofiltration solvent extraction route demonstrated enable effective from real-world acid waste chloride TiO2 production route. The process involving sever...

Organic solvent nanofiltration (OSN) is gradually expanding from academic research to industrial implementation. The need for membranes with low and sharp molecular weight cutoffs that are able operate under aggressive OSN conditions increasing. However, the lack of comparable uniform performance data frustrates screening membrane selection processes. Here, a collaboration presented between sev...

the role of polymeric additives such as pvp and peg is studied with respect to the morphology of pes porous layer as a sublayer of nanofiltration composite membranes based on pes/pa. results show that by phase inversionprocess of quaternary systems comprised of four components of polymer/solvent/non-solvent/additive and the diffusion of intertwined polymers some changes occur in membrane morpho...