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Moiré trions are observed in electrostatically gated WSe2/MoSe2 heterobilayers, where photoluminescence polarization switching reveals a competition between valley-flip and spin-flip relaxation pathways of photo-excited carriers during trion formation.
Alloying copper with isolated heteroatoms enables the C protonation of CO2 to HCOO* on activated copper sites, resulting in exclusive electrochemical CO2-to-HCOOH conversion with considerably high activity.
This perspective presents a framework with a tiered approach for human health risk assessment of nanopesticides that will facilitate informed decisions by regulators and industry.
Low-temperature ultraclean integration of large-area MoS2 thin-film transistors with nitride micro-LEDs through a back end of line process enables the demonstration of displays with high resolution and uniformity.
Small semiconductor nanocrystals control the assembly of larger plasmonic nanostructures through interfacial self-limiting aggregation, leading to permeable and colloidally stable photoactive hybrids for photocatalysis and tracking of light-induced electron transfer.
Although conventional analytical techniques can measure ensemble averages, single-molecule junctions can sense molecular reaction processes at the single-event level. The integration of a single-molecule Pd catalyst into a gapped graphene junction enables the electrical detection of a full catalytic cycle of the Suzuki–Miyaura coupling and clarifies the controversial transmetallation mechanism.
A trap, formed by a DNA-origami sphere docked onto a solid-state nanopore, allows the hydrodynamic trapping and label-free observation of single proteins, enabling nucleotide-dependent protein conformation to be discriminated on the timescale of submilliseconds to hours.
Spatiotemporal thermoelectric microscopy enables the observation of electronic heat flow in graphene in diffusive and hydrodynamic regimes at room temperature, as well as a controlled transition from a Fermi liquid to Dirac fluid.
Measuring the gate capacitance serves as a probe of the correlated states in MoSe2/WS2 moiré superlattices, which can be further controlled via sample–gate coupling.
An optical analogue of magic-angle twisted graphene bilayer gives rise to rigorously stopped light, which coupled with gain allows for a new type of a nanolaser with remarkable figures of merit.
Optical spectroscopy can identify chiral indices of individual carbon nanotubes, but has so far been unable to determine their handedness because of the weak chiroptical signal. Rayleigh scattering circular dichroism now enables the identification of both chiral indices and handedness of individual nanotubes.
Despite its great potential, immune checkpoint blockade has shown efficacy in only a restricted number of patients. In this Article, the authors present a nano-based platform for the co-delivery of chemo- and immunotherapeutics that shows efficient synergic antitumour activity in large, hard-to-treat tumour models.
Almost all currently used vaccines against COVID-19 consist of either non-viral or viral nanoparticles. Here we attempt to understand the reasons behind the success of such advanced nanoscale vaccine technologies compared with clinically established conventional vaccines, and the lessons to be learnt from this potentially transformative development in the adoption and acceptance of nanotechnology for medicine.
Understanding the fundamental nano–bio interactions of nanomaterials intended for biomedical use might unlock potential alternative applications. Here the authors reveal a tumoricidal mechanism of black phosphorus nanomaterials where these nanomaterials directly affect the mitotic centrosome machinery by suppressing polo-like kinase 1, suggesting that nanomaterials can be applied in targeted cancer therapy with their intrinsic nano–bio properties.
Non-trivial topological magnetic textures, such as skyrmions, merons or vortices, possess topological charges Q with absolute values smaller or equal to one. Now, skyrmion bundles, multi-Q three-dimensional skyrmionic textures, are observed and their current-driven dynamics are studied.