In this study, we present a series of solvatochromic phenylbenzothiadiazoles that display dual emission from the locally excited (LE) and intramolecular charge transfer (ICT) states. The donor-acceptor derivatives are highly sensitive to polarity changes, which can be monitored by differences in efficiency, spectroscopic shifts variations LE/ICT ratio. One compounds series, containing thiomethy...

Microbial reduction of soluble Pd(II) by cells of Shewanella oneidensis MR-1 and of an autoaggregating mutant (COAG) resulted in precipitation of palladium Pd(0) nanoparticles on the cell wall and inside the periplasmic space (bioPd). As a result of biosorption and subsequent bioreduction of Pd(II) with H2, formate, lactate, pyruvate or ethanol as electron donors, recoveries higher than 90% of ...

Anthropogenic activities have led to a significant accumulation of Pb in the environment, posing threat ecosystems. Iron oxides that display magnetic properties are ubiquitous environment and partitioning onto these minerals is considered one most critical geochemical processes controlling its environmental fate. In anoxic environments, iron undergo redox cycling due biotic abiotic routes, resu...

In this study, we used khat (Catha edulis) leaf extract as a reducing and stabilizing agent for the biosynthesis of zinc oxide nanoparticles (ZnO NPs). The rapid color change solution to pale yellow UV-visible absorption peak at 322 nm confirmed initial formation ZnO NPs. FTIR spectrum analysis revealed contribution bioreduction Zn2+ ions stretching vibration 480 cm-1 also confirms XRD showed c...