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As singularities in non-Hermitian systems, exceptional points exhibit rich topological characteristics and have potential for sensing applications. Now, a nitrogen-vacancy spin in diamond exhibits a third-order exceptional line upon the introduction of multiple symmetries in the non-Hermitian Hamiltonian of the spin system.
Multidimensional optical information, including intensity, polarization and wavelength, can be simultaneously detected using double twisted black arsenic–phosphorus homojunctions.
A one-step spin-coating approach to fabricate scalable epitaxial heterodimensional tin perovskite thin films results in near-infrared tin perovskite LEDs with a peak external quantum efficiency of 11.6%.
Protein degradation is a powerful tool for a range of applications and therapies. Here, a selective autophagy receptor mimetic against mutant p53 protein is developed to substantially elevate autophagy levels and to recognize and transport mutant proteins for autophagy-mediated degradation and anticancer effect.
Bidirectional neural interface electronic devices offer therapeutic options. Here, the authors present wafer-scale fabrication of flexible nanoporous graphene-based implantable microelectrode arrays with low impedance and high charge injection for in vivo brain recording and nerve stimulation.
Cytokine interleukin-12 (IL-12) has potential for tumour suppression yet off-target effects limit potential applications. Here the authors report on the delivery of IL-12 mRNA encapsulated in extracellular vesicles to lungs via inhalation and demonstrate the immunotherapeutic potential of targeted cytokine mRNA therapy.
High-density transparent microelectrode arrays with platinum-nanoparticle deposited and interlayer-doped double-layer graphene enable multimodal optical and electrical recordings with high spatiotemporal resolution to decode neural dynamics at different cortical layers from surface potentials.
Pre-adsorption of water molecules on a material surface, followed by assembly of a van der Waals (vdW) structure, provides a vdW water gap with a height that can be precisely tuned through variation of the amount of water adsorbed at the interface. This approach is applicable to different two-dimensional and even three-dimensional homo- and heterojunctions.
A metasurface-based approach is used to implement computationally expensive digital convolution operations in high-speed, low-power optics for improving the latency and power consumption of machine vision systems.
By preadsorption of water molecules on a material surface, a controllable ångström-scale van der Waals (vdW) gap is created, which can be applied to other vdW material systems with controllable gaps.
Nanofibre lung injury has previously been linked to the leakage of reactive oxygen and nitrogen species in frustrated phagocytosis. Here the authors use a nanosensor to demonstrate, map and track the generation of reactive species during the frustrated phagocytosis of model glass nanofibres.
Here, 3D nanofabrication and elasticity programming of monolithic soft microrobots equipped with magnetic springs with strain response at piconewton forces capable of deformation on micrometre length scales is demonstrated for applications in cell force sensing, cell manipulation and soft actuation.
The Review discusses the state-of-the-art polymer nanocomposites from three key aspects: dipole activity, breakdown resistance and heat tolerance for capacitive energy storage applications.
Chitosan/glucose co-polymers encapsulating silver sulfide quantum dots can be used to improve oral delivery of insulin in different animal models without hypoglycaemic incidents.
An atomically thin indium tin oxide film in the form of a quantum well exhibits a χ2 of ~1,800 pm V–1. Theoretical calculations point to an asymmetric electronic interband transition resonance as the reason for this large χ2 value.
Insulin injections are not ideal and have an increased risk of hypoglycaemia. A preferable oral formulation based on silver sulfide quantum dots coated with a chitosan/glucose polymer is discussed, which has controlled insulin release and reduced risk of hypoglycaemia, and demonstrates applications in rodent and non-human primate models.