Poly(ether-block-amide) (PEBA, commercialized as Pebax) copolymer membranes show a highly promising platform for preparing high-performance CO2 capture from process streams containing CH4 and N2. Pebax combines high affinity with the desired mechanical strength polymeric thanks to its flexible polyether segment hard polyamide block, respectively. Furthermore, researchers have been improving per...

The in vitro and in vivo antibacterial activities of the new rifamycin derivatives KRM-1648 and KRM-1657 were compared with those of rifampin. Rifabutin, ciprofloxacin, and clarithromycin were also tested for reference. The respective MICs of KRM-1648 and KRM-1657 for 90% of the strains tested (MIC90S) were 0.016 and 0.0078 microgram/ml, respectively, for methicillin-susceptible Staphylococcus ...

We report near-infrared radial velocity measurements of the recently identified donor star in the high mass X-ray binary system OAO 1657–415 obtained in the H band using ISAAC on the VLT. Cross-correlation methods were employed to construct a radial velocity curve with a semi-amplitude of 22.1± 3.5 km s. Combined with other measured parameters of this system this provides a dynamically determin...

Global warming is considered as a consequence of extensive use fossil fuels. Post combustion CO2 capture an interesting and alternative solution where mixed matrix membranes (MMMs) can be exciting candidate. This research focuses on the optimization MMM composition consisting Pebax® 3533 polymer porous coordination (PCP) MIL-178(Fe) filler for gas separation application. characterized with SEM,...