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The interaction between perovskite oxides and water can have a significant influence on practical performance. Here the authors study the dynamics of surface water adsorption and hydroxide formation during monolayer formation on a ruthenate.
Producing hydrogen via solar water splitting with metal-based molecular catalysts offers scalability. An active p-GaInP2 photocathode stabilized by a TiO2 layer functionalized by a cobaloxime molecular catalyst is now reported for water reduction.
The authors show that thin films of microporous metal–organic frameworks can be deposited on a broad range of substrates and on high-aspect-ratio features by means of chemical vapour deposition.
Electronic many-body effects are used to control the electron effective mass, and thus the plasma energy and electrical conductivity, of thin films of the correlated metals SrVO3 and CaVO3, making them good candidates as transparent conductors.
Tissue-adhesive scaffolds made by the conjugation of RNA triple helices to dendrimers lead to ∼90% shrinkage of tumours two weeks after implantation in a triple-negative breast cancer mouse model.
The critical concentration of dopants required to trigger an insulator-to-metal transition in films of semiconductor nanocrystals has been calculated, and experimentally verified with highly doped silicon nanocrystal films.
Low efficiency, short lifetime of catalysts and a lack of low-cost materials have limited electrochemical H2 production. Now, active and stable Co–Mo–Sx chalcogels for the efficient production of H2 in alkaline and acidic environments are reported.
The commitment and differentiation of human mesenchymal stem cells encapsulated in synthetic hydrogels that mimic the stiffness of adult-stem-cell niches can be switched by changing the hydrogel’s onset of stress stiffening.
A renally cleared, water-soluble dye emitting in the near-infrared-imaging (NIR)-II window outperforms a clinically approved NIR-I dye in the in vivo imaging of tumours and their nearby blood and lymphatic vasculatures.
An engineered tumour model based on a rolling scaffold–tumour composite strip that can be rapidly disassembled for snapshot analyses preserves cell-to-cell interactions and enables spatial mapping of cell metabolism and cell phenotype.
The absorption and desorption mechanism of hydrogen in palladium nanoparticles is complex. Based on thermodynamic considerations a mechanism consistent with an interfacial model different from bulk Pd behaviour is now proposed.
A polymeric protein complex consisting of a newly identified magnetoreceptor protein and known magnetoreception-related photoreceptor cryptochromes exhibits spontaneous alignment in magnetic fields.
N-Heterocyclic carbene Ir(III) complexes, used as deep blue phosphorescent emitters and as electron-blocking dopants in organic LEDs, allow the realization of devices with very high brightness and reduced efficiency roll-off.
A magnesium-based alloy with large lithium content demonstrates high specific strength in combination with corrosion resistance, associated with the formation of a lithium carbonate surface film that protects the alloy from its environment.
Although protecting photoanodes using metal oxides is attractive for solar fuel applications, the photoanodes typically suffer from poor photovoltage. Now, insulating oxide layers are shown to promote enhanced photovoltages and general design principles are suggested.
A synthetic fibrous material with tunable mechanics and architecture allows researchers to reveal that cells use fibre recruitment to probe and respond to the mechanics of fibrillar matrices.
A super-Förster energy-transfer regime, where coherent and incoherent energy transport processes enhance the diffusion of excitons, is observed at room temperature by tuning the distance between the chromophores’ binding sites in a virus scaffold.
Multiscale molecular dynamics indicate that the crystallization of shock-compressed fused silica and quartz occurs within a few nanoseconds and is mediated by diffusion.