We report the thermal annealing-induced formation of ring-like structure of Zn(II)-doped magnetite from iron alkoxide leaf-like nanoplate precusor. The phase, structure and morphology of magnetite nanorings were comprehensively characterized by powder X-ray diffraction, X-ray photoelectron spectroscopy, atomic force microscope, scanning electron microscope, and transmission electron microscope....

A recent paper in PNAS (1) analyzed the evolution of metalloproteins and confirmed our earlier observation on the abundance of Zn-binding proteins among the most widespread – and evolutionarily oldest – protein folds (2). As that observation appeared to contradict the extremely low (<10 M) estimates of Zn levels in the primeval anoxic ocean (3), we had suggested that the first cells developed i...

The Apollo 16 sample 66095, named “Rusty Rock”, is enriched in volatile and moderately elements. impact melt breccia characterized by abundant Fe-rich sulfide chloride alteration phases, including FeS, ZnS, FeCl2. These phases have previously been interpreted to be the result of fumarolic breccia. Here we present results two different experimental approaches, which aim constrain temperature con...

Nanoparticulate zinc oxide (ZnO) is one of the most widely used engineered nanomaterials and its toxicology has gained considerable recent attention. A key aspect for controlling biological interactions at the nanoscale is understanding the relevant nanoparticle surface chemistry. In this study, we have determined the disposition of ZnO nanoparticles within human immune cells by measurement of ...

Reasonable regulation of iodine redox has gradually shown potential as a desirable cathodic reaction in zinc‐based batteries, but suffers from poor cyclic reversibility caused by uncontrollable side reactions. Also, the irregular growth dendrites and unavoidable occurrences hydrogen evolution H 2 O‐rich environment have become permanent topics anodic zinc. Herein, cross‐linked gel based on carb...

Inorganic solid-state batteries are attracting significant interest as a contender to conventional liquid electrolyte-based lithium-ion but still suffer from several limitations. The search for advanced coatings protecting cathode materials in achieve interfacial stability is continuing challenge. In the present work, surface of an industrially relevant Ni-rich LiNixCoyMnzO2 material, NCM-85100...

CdTe films, nanowires, film-nanowire combinations and CdS-CdTe core-shell structures have been fabricated in a preliminary survey of growth methods that will generate structures for PV applications. Selectivity between film, nanowire and film plus nanowire growth was achieved by varying the pressure of N2 gas present during Aucatalysed VLS growth of CdTe, on either Mo or Si substrates. Metamorp...

A complex poly(vinylidene difluoride) (PVdF)/poly(methyl methacrylate) (PMMA) based coil coating formulation has been investigated using time-of-flight SIMS (ToFSIMS). Employing a Bi3 + analysis source and a Buckminsterfullerene (C60) sputter source, depth profiles were obtained through the polymeric materials in the outer few nanometres of the PVdF topcoat. These investigations demonstrate tha...