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The penetration of tissues with syringe needles is a common clinical practice that inevitably results in blood loss at the puncture site. This blood loss can now be eliminated using self-sealing haemostatic needles.
Encapsulation of single-atom and particulate gold within growing zeolite frameworks generates active catalysts with exceptionally high thermal stability.
Calcium ions play a vital role in enabling synaptic plasticity in biological systems. The dynamic behaviour of these ions has now been emulated in a metal atom diffusion-based memristor.
The superconductivity is found to control the magnetic configuration in GdN/Nb/GdN spin valves as a result of an antiferromagnetic exchange interaction arising from the coupling between the superconducting condensation energy and the magnetic state.
A device is presented that can detect mid-infrared plasmons in graphene encapsulated by hexagonal boron nitride via the thermoelectric effect; the natural decay product of the plasmons (electronic heat) is converted into a measurable voltage signal.
A room-temperature metastable skyrmion phase, which undergoes reversible transitions between a triangular and square lattice upon varying the temperature and magnetic field, is found in β-Mn-type Co8Zn8Mn4.
The electrical control and readout of single two-level state defects in a defective oxide film grown directly on the channel of a thin-film FET allow for the extraction of individual long relaxation times.
The use of a sacrificial layer of water-soluble Sr3Al2O6 allows the release of freestanding 2D heterostructures and superlattices of epitaxially grown perovskite oxides while preserving their structural and physical properties.
An artificial phononic graphene for surface acoustic waves on a LiNbO3 integrated platform allows for the experimental demonstration of pseudo-diffusion transport and a temporal beating effect similar to the ‘Zitterbewegung’ phenomenon.
Room-temperature thermal conductivities in superatomic crystals are found to be proportional to the sound speed, while their behaviour can switch between amorphous- or crystalline-like, depending on temperature and the nature of superatoms used.
A porous microwell platform that generates large-scale arrays of microparticles with varying shape, size and modulus with high specificity shows applicability in anti-counterfeiting and cell-screening applications.
A real-time study of the growth of two-dimensional nanocrystal superlattices with square periodicity shows the formation mechanism leading to the oriented attachment of the nanocrystals.
Experiments and simulations show that resistive forces on surfaces moving through granular matter or cohesive media arise as a consequence of local frictional yielding.
The Rashba effect at the LaAlO3/SrTiO3 interface is shown to enable large and gate-tunable spin-to-charge conversion through the inverse Rashba–Edelstein effect.The spin current is injected, through spin pumping, from a NiFe film.
Studies of the phonon damping mechanism in glasses reveal scaling with the wavevector k which is different from the traditionally assumed Rayleigh scattering. These findings are related to long-range correlations in the local stress.
A method to synthesize 2D layers of gallium nitride on SiC is reported. Epitaxial graphene preliminarily grown on SiC allows intercalation of gallium atoms on the SiC substrate and stabilizes the 2D gallium nitride islands formed by ammonolysis.