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A non-volatile, flexible, three-terminal memory device with an unprecedented number of distinct levels is fabricated using photoswitchable diarylethenes blended with polymeric semiconductors.
Carbon-based rods can adsorb water at low humidity and release it at high humidity through a reversible physical process that is associated with the dynamic spacing between rods.
Low-temperature scanning tunnelling microscopy imaging combined with a comprehensive quantum treatment of a silicon–dopant system forms a metrology technique that can pinpoint dopant locations in silicon with exact lattice site precision.
A high-speed atomic force microscope, which has been adapted for biological applications through the integration of a pumping system for buffer exchange and a pulsed-laser system for uncaging caged compounds, can be used to study the structure, dynamics and interaction of annexin assemblies.
Mice pre-treated with lipopolysaccharides and metal nanoparticles, 10 nm or smaller, can cause a CD4+ T-cell-dependent allergic response similar to metal allergy seen in humans, suggesting that metal nanoparticles could potentially be a new trigger for metal allergy.
A magnetic resonance imaging contrast agent that amplifies its signal in response to pH is used to rapidly identify tumours, report hypoxic regions in the tumour and detect millimetre-sized metastatic tumours in the liver of animals.
Hundreds of molecular rotors in a 2D network can be simultaneously rotated by applying an electric field from the tip of a scanning tunnelling microscope.
High-speed atomic force microscopy can visualize the dynamics of phenylalanine-glycine nucleoporins inside nuclear pore complexes and reveals the selective barrier mechanism within these molecular machines.
Nanoscale magnetic imaging based on single defects in diamond is extended to cryogenic temperatures and is used to study vortices in the iron pnictide superconductor BaFe2(As0.7P0.3)2.
A wild-type aerolysin nanopore can resolve individual short oligonucleotides that are 2 to 10 bases long, and can monitor the stepwise cleavage of oligonucleotides by exonuclease I.
Multiplexed sensing of single molecules can be achieved with solid-state nanopores by using digitally encoded DNA nanostructures, allowing four different antibodies to be simultaneously detected at nanomolar concentrations.
Large films of aligned and closely packed single-walled carbon nanotubes can be prepared through slow vacuum filtration, and used to create terahertz polarizers, thin-film transistors, polarized light emission devices, and polarization-sensitive detectors.
Carbon nanotube porins with diameters of 0.8 nm can confine water to a one-dimensional chain and support proton transport rates that exceed those of bulk water by an order of magnitude.
Although spin–orbit torque switching demonstrations have so far been based on the magnetic easy axis orthogonal to the current, it is possible to produce schemes with the easy axis parallel to the current.
Gold-doped graphene combined with a serpentine-shaped bilayer of gold mesh and polymeric microneedles form a wearable patch for sweat-based diabetes monitoring and feedback therapy.
Thermally assisted magnetic scanning probe lithography is used to reversibly pattern magnetic anisotropy landscapes in a continuous exchange-bias system, where propagating spin waves are excited.
The frequency stability of a high-quality silicon nanoresonator is shown to be several orders of magnitude higher than the limit imposed by thermal noise.
Literature data mining and knowledge extraction (known as meta-analysis) can be used to derive the relationships between toxicological outcome and the physicochemical properties of cadmium-containing quantum dots.