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Printing and heating of a fluorinated elastomer mixed with silver flakes, a fluorine surfactant and methylisobutylketone leads to the formation of in situ silver nanoparticles, which boost the conductivity of this highly stretchable composite material.
Sub-coercive electric fields and sub-picosecond light pulses are shown to enable low-power manipulation of antiferromagnetic domains in the multiferroic BiFeO3.
Designing stable mechanical actuators and sensors for applications in extreme environments is difficult. A high-temperature and low-voltage electromechanical oxide actuator based on PrxCe1−xO2−δ and exhibiting dynamic chemical expansion is now reported.
By applying high-resolution transmission electron microscopy and precession electron diffraction, it is possible to image the handedness of chiral zeolite nanocrystals.
Substitution of Si with Au and Ir in Ti3SiC2 through a solid-state diffusion process allows the synthesis of Ti3AuC2, Ti3Au2C2 and Ti3IrC2 phases able to form Ohmic contacts with SiC stable at high temperatures under ambient air conditions.
Epidermal growth factor receptor and its isoform HER2 are recruited to nascent cellular adhesion sites and play an important role in the rigidity sensing of cells on stiff substrates, this activity being dependent on Src-mediated phosphorylation.
AFM measurements of peptoids assembling into sheets and networks show that the crystallization mechanism is determined by the molecular structure, where the addition of a hydrophobic segment alters the crystal formation process into a two-step pathway.
An electric field is shown to induce an in-plane effective magnetic field enabling the deterministic magnetization switching of a magnetic multilayer on a piezoelectric substrate.
Surface-dominated conduction is found to dominate up to 240 K in the strongly correlated mixed-valence Kondo insulator SmB6 under the application of large strain.
Quasi-two-dimensional CdSe nanoplatelets are shown to grow in concentrated solvent-free melts, without mixed surfactants. A model explaining such results proposes that nanoscale instability triggers anisotropic growth of isotropic materials.
Ionic liquids are important for energy storage and lubrication but their behaviour at electrified interfaces remains elusive. Confined ionic liquids are now shown to exhibit a dramatic change to a solid-like phase pointing to capillary freezing.
Cathodes with enhanced catalytic activity for oxygen reduction are needed for solid oxide fuel cells. Although perovskite-type oxides typically suffer from performance degradation, high surface activity is now shown to be related to a few active sites.
Electric-field control of the conductivity of domain walls in ferroelectric ErMnO3 has been demonstrated. Reversible switching between conducting and insulating states is attributed to an inversion layer, which provides a channel for conduction.
By studying the immune responses of animals to different types of biomaterial implants, colony stimulating factor-1 receptor is revealed as an important mediator of the foreign body reaction and a possible target for fibrosis inhibition.
Solar water splitting is promising for hydrogen production and solar energy storage, but for large-scale utilization cost must be reduced. A membrane-free approach in separate oxygen and hydrogen cells brings water splitting closer to applications.
Time-of-flight momentum microscopy is developed. It enables direct three-dimensional mapping of the topology of the Fermi surface, identification of electron and hole pockets, and quantification of Fermi velocity as a function of wavevector.
It is now shown that the phase of heteromolecular submonolayer films formed by adsorbates with opposite intermolecular interactions can be controlled by tuning the density of the gas phase of the species with repulsive character.
Complex colloidal crystal structures can be obtained by a combination of preassembled units and DNA-mediated interactions. This enables, for instance, the generation of a MgCu2 structure with interpenetrating diamond and pyrochlore sublattices.