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A pore with a subnanometre diameter, created in a thin silicon nitride membrane, can be used to detect the primary structure of a denatured protein molecule.
Protein isoelectric points can now be obtained by measuring adhesion forces between the protein attached to an atomic force microscope probe and a reference surface with a known charge, offering a new way to characterize unknown and rare proteins.
The control of atomic vacancies on a chlorine-terminated Cu(100) surface by means of a scanning tunnelling microscope tip makes it possible to construct a rewritable atomic memory of over a kilobyte in size with an information density as high as 502 terabits per square inch.
The magnetic field-driven dynamics of nanosized magnetic vortex cores can be used to generate propagating short-wavelength spin waves in heterostructures with antiferromagnetically coupled layers.
Antiferromagnetic materials allow deterministic spin–orbit torque switching of perpendicular magnetization in ferromagnetic layers without external magnetic fields.
Large-scale electronic circuits can be assembled via the spatially controlled synthesis of heterostructures made of single-layer molybdenum disulfide contacting graphene.
A graphene transistor integrated on-chip on a hexagonal boron nitride-capped TaS2 layer provides a voltage-tunable, low-resistance load for controlling a TaS2 metal–insulator transition, enabling a compact voltage-controlled oscillator operating at room temperature.
Luminescence spectroscopy can be employed to investigate the Brownian motion of upconversion nanocrystals with high spatial resolution and thermal sensitivity.
DNA-PAINT, a super-resolution fluorescence microscopy technique that exploits programmable transient oligonucleotide hybridization, can be used to image densely packed triangular lattice patterns with molecular-level resolution and ångström-level precision.
Three-dimensional tissue-scaffold-mimicking nanoelectronics are used to map conduction pathways during cardiac tissue development, record action potential dynamics in disease and pharmacological models, and actively control action potential propagation.
Variations in silver isotope ratio identified using inductively coupled plasma mass spectrometry offers insights into the natural transformation processes of silver nanoparticles in the environment; the approach could potentially be used to distinguish engineered silver nanoparticles from those formed naturally.
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.
Intrinsic material nonlinearities in suspended graphene generate tunable intermodal coupling that can be used to cool or amplify thermal-mechanical motion in a manner akin to cavity optomechanics.
Tension-induced tunable mode coupling in graphene drums enables coherent energy transfer between mechanical modes to realize strong coupling and amplification.