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Light trapped in the active polymeric layer limits the total efficiency of polymer light-emitting diodes. Here, Lee et al.get round this bottleneck by enhancing light extraction in waveguide optical modes via ripple-shaped nanostructures that spontaneously form on ZnO electrode surfaces.

The integration of flexible electronics with conventional devices has been hampered by the lack of suitable soldering techniques able to withstand stretching. Jeonget al. use a porous substrate to fabricate biocompatible, stretchable electronics that can be interfaced with commercial components.

Hereditary deafness lacks effective biological treatments. Here, the authors develop a base editing therapy that corrects a common MPZL2 deafness gene mutation in a humanized mouse model and restores hearing, highlighting base editing as a potential treatment for hereditary deafness.

Autophagosome-lysosome fusion is crucial to mitigate nonalcoholic fatty liver disease (NAFLD). Here, the authors demonstrate that CHIP mediates non-degradative ubiquitination of STX17, which enhances SNRAE complex formation, which alleviates NAFLD.

Colloidal synthesis can help to precisely control the shape and composition of catalytic metal nanoparticles, but it has so far proved difficult to use these particles in high-temperature reactions. Core–shell structures capable of isolating Pt-mesoporous silica nanoparticles have now been shown to be catalytically active for ethylene hydrogenation and CO oxidation at high temperature.

Here the authors identify silicon as an optimal element for anchoring oxygen on copper, nickel or iron surfaces to prevent oxidation. An atomically thin layer of SiMOx (M = Cu, Ni, or Fe) renders the metal surface impermeable to oxygen up to 400 °C while preserving the electrical properties.

Virtual memory T cells have antimicrobial functions but whether they can contribute to inflammatory pathology is unclear. Here the authors show that a subset of CD8⁺ T cells that originates from virtual memory T cells upon cytokine stimulation can drive the chronic inflammatory disease alopecia areata via innate-like cytotoxic effector functions.

Glaucoma is an irreversible ocular disease that may lead to vision loss. Here the authors develop a theranostic smart contact lens with an intraocular pressure sensor, a flexible drug delivery system, wireless power and communication systems and an application specific integrated circuit chip for both monitoring and control of intraocular pressure in glaucoma induced rabbits.

Tissue engineering applications call for controllable micro-structural units as a platform, but their fabrication remains challenging. Here, Jeong et al. show a method that enables soft materials to self-organize into highly packed micro-honeycomb structures with aspect ratios up to 500, and tunable shapes.

Mechanochemistry offers a paradigm shift by enabling ammonia synthesis under near-ambient conditions. Here, the authors present an innovative mechanochemical approach that employs silicon nitride as a defect-inducing physical promoter to facilitate ammonia production.

Although conventional innate immune stimuli contribute to immune activation, they induce exhausted immune cells, resulting in suboptimal cancer immunotherapy. Now, a kinetically activating nanoadjuvant can dynamically integrate two waves of innate immune stimuli, in terms of the order, duration and time window, which results in effective antitumour immunity without immune cell exhaustion.

Constructing atomically flat surface in a single crystal ultrathin film is difficult owing to the coherent merging of trillions of clusters. Here the authors establish the initial growth mechanism of a single crystal Cu thin film with atomically flat surface using atomic sputtering epitaxy.

Identifying the mechanisms underlying the early inflammatory phase of aortic valve disease is crucial for disease prevention. Here the authors perform single-cell RNA sequencing to show the immunomodulatory role of PPARγ in valvular endothelial cells during hyperlipidemia.

We report full-colour, vertically stacked µLEDs that achieve exceptionally high array density (5,100 pixels per inch) and small size (4 µm) via a 2D material-based layer transfer technique, allowing the creation of full-colour µLED displays for augmented and virtual reality.

Accurate prediction of surgical outcomes is essential for selecting treatment plans and ensuring patient satisfaction in corrective jaw surgery (orthognathic surgery). Here, the authors present and validate GPOSC-Net, a generative model for orthognathic surgery planning, to predict surgical movement and synthesize post-operative cephalograms from pre-operative data using a diffusion model.

Uninterrupted monitoring of pressure and temperature at skin interfaces can help to minimize the potential for pressure injuries in hospitalized or bedridden patients. Here, the authors introduce a soft, skin-mountable sensor that can continuously provide readings via antennas mounted under bedding, and demonstrate the functionality and robustness of the devices on patients.

Effective screening of drugs to treat amyloid oligomeric aggregates associated with Alzheimer’s is needed for drug development. Here the authors report on the creation of an amyloid corona around a plasmonic nanoparticle to monitor amyloid degradation when exposed to potential drugs and demonstrate application.

A stealthy neural recorder allows for the study of the behaviour of non-human primates in naturalistic settings.

The Pohang Accelerator Laboratory X-ray Free Electron Laser (PAL-XFEL) in South Korea has now entered operation with a timing jitter of just 20 fs.

Artificial muscles often struggle to match the performance of biological systems. Here, the authors report an artificial magnetic muscle that shows remarkable mechanical and actuating capabilities, comparable to natural muscles.

In field-effect transistors, a semiconducting channel is indispensable for device switching. Here, the authors demonstrate semiconductor-less switching via modulation of the field emission barrier height across a graphene-hBN interface with ON/OFF ratio of 10⁶.

The transcriptional coregulators YAP/TAZ are shown to directly control leptin gene transcription, thereby uncoupling adipose tissue mass from leptin levels.

Despite recent progress in the production of bendable thin-film transistors, their development is limited by leakage currents and fragile inorganic oxides. Combining graphene and single-walled carbon nanotube electrodes with a geometrically wrinkled inorganic layer, highly stretchable and transparent field-effect transistors have now been demonstrated.