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Doped Sr₂IrO₄ is of interest because of its close similarities to La₂CuO₄, a parent compound of the cuprates. Nelson et al. reveal the intrinsic evolution of its electronic structure with hole doping by avoiding the strong in-plane disorder introduced by previously used chemical substitutions.

Moculus is a virtual reality headset for mice that allows realistic display of three-dimensional environments. The system improves performance in visual-learning tasks and can be combined with various microscopes to study neural circuitry.

Semiconductor quantum dots that simultaneously support blue and yellow emission offer a route to realizing efficient white light-emitting diodes.

Inconsistency in spatial resolution of small-scale topographic features, such as tidal creeks and streams, can create false trends of mean elevation change, leading to misconceptions about coastal resilience to sea level rise, according to an analytical method.

Organic ferroelastic crystals have promise as materials for photonic devices, but control of bending can be challenging. Here, the authors report the development of isomorphous, Schiff base crystals, with sharp bending at multiple interfaces.

In this pre-specified interim analysis, patients with resected stage IIB/C melanoma who received adjuvant nivolumab had significantly prolonged recurrence-free survival compared to placebo-treated patients, providing another treatment option for this population.

Biphoton digital holography is developed to perform quantum state tomography in a short measurement time. The interference between an unknown and a reference biphoton state is used to retrieve amplitude and phase information through coincidence imaging on a time-stamping camera.

Epithelial-mesenchymal transition (EMT) plays a key role in embryonic development, wound healing and cancer. Here the authors develop an electrochemical sensor to detect EMT using E-cadherin antibody-quantum dot conjugates and a carbon nanotube-gold nanoparticle-modified electrode as a detection platform.

Epithelial organoids share a common central lumen with various shapes and dynamics. Here, authors show that epithelial cysts formed from three different cell types obey the same physical laws and end up with a single lumen following conserved rules depending on their luminal pressure.

Polariton condensation of topological propagating edge states is demonstrated with halide perovskite microcavities.

A first principles understanding of the origins of the Earth's magnetic field requires the study of iron and nickel at high temperatures and pressures. Here, the authors find anomalies in the electronic properties of nickel and iron-nickel alloys, which may be important for the physics of geomagnetism.

A hybrid exciton is observed at the interface between an organic semiconductor and a transition metal dichalcogenide. This suggests engineering the exciton wavefunction can lead to efficient charge and energy transfer processes in such structures.

The axial Higgs mode is theoretically attributed to a hidden ferroaxial component of charge order. In rare-earth tritellurides, this ferroaxial order is now shown to be induced by intertwined orbital and charge orders.

Epithelial organoids are grown without Matrigel using a single-chain antibody.

Surface structures can have an important effect on the traits of two-dimensional electron liquids. Here, the authors demonstrate how the surface terminations of SrTiO₃(001) affect the mechanism and properties of the two-dimensional electron liquid.

The relationship between superconductivity and antiferromagnetism is an unresolved question in electron-doped high-T_c superconductors. Saadaoui et al. perform low-energy muon spin relaxation measurements to study the phase diagram of La_2−xCe_xCuO_4−δat the magnetic-superconducting transition region.

A proper theoretical description for unconventional superconductivity in iron-based compounds remains elusive. Here, the authors, to capture the electron correlation strength and the role of Fermi surfaces, report ARPES measurements of three iron chalcogenide superconductors to establish universal features.

Electrocatalytic co-reduction of CO₂ and nitrate to synthesize urea is a sustainable and promising option to the alternative conventional Bosch-Meiser. Here, the authors report a CeO_x-integrated diatomic electrocatalyst overcomes the traditional trade-off between urea yield and Faradaic efficiency.

Understanding the complex flow of soft amorphous materials requires going beyond standard rheometers, which fail to capture stress heterogeneities at the mesoscopic scale. By combining shear rheometry with time-resolved X-ray micro-tomography on 3D foams, the study uncovers universal master curves in local stress dynamics and reveals how microstructural rearrangements drive non-local stress redistribution, explaining macroscopic elastoplastic behavior.

Insects are declining in many regions. Here the authors show that arthropod biomass losses in Jena Experiment and Biodiversity Exploratories time series are driven more by species loss than by species identity and abundance declines, and are mitigated by high plant diversity and low land-use intensity.

Graphene on boron nitride gives rise to a moiré superlattice displaying the Hofstadter butterfly: a fractal dependence of energy bands on external magnetic fields. Now, by means of capacitance spectroscopy, further aspects of this system are revealed—most notably, suppression of quantum Hall antiferromagnetism at particular commensurate magnetic fluxes.

Although heterogeneous ice nucleation is investigated in a number of fields, a mechanism for the process remains elusive. Ice with a pentagon-based chain structure is now seen to form on a Cu(110) surface, revealing that the structure of ice–water films can adapt to maximize water–metal bonding and achieve strong hydrogen bonding within the layer.

Spontaneous fluctuations in brain activity exhibit complex spatiotemporal patterns across animal species. Here the authors show that sensory-motor regions and spatial heterogeneity in excitation-inhibition balance might shape multi-stability in brain dynamics.

The SrTiO₃/LaAlO₃ system is widely studied because it forms a two-dimensional electron gas at the interface. This study investigates the effects of diluting the LaAlO₃ layer with SrTiO₃, and finds that the threshold thickness required for the onset of conductivity scales inversely with the fraction of LaAlO₃, suggesting an intrinsic origin for the electron gas.

Quantum teleportation moves the quantum state of a system between physical locations without losing its coherence, an essential criterion for emerging quantum information applications. Now, electron-spin-state teleportation in covalent organic electron donor–acceptor–stable radical molecules is demonstrated using entangled electron spins produced by photo-induced electron transfer.

By measuring terahertz photon echoes, multidimensional spectroscopy demonstrates that interlayer tunnelling in a cuprate superconductor remains largely unaffected by electronic disorder, even near the phase transition.

17β-oestradiol establishes an anti-ferroptotic state in female kidney tubules.

Cholesterol plays a key role in membrane biology. Here, authors employ evolutionary molecular dynamics simulations to explore interactions driven by linear protein sequences, challenging the predictive power of traditional cholesterol-binding motifs.

The results from the phase II NICHE trial on immunotherapy in mismatch-proficient colon cancer are presented.

Traditional methods for tuning the dimensions of organic electronic device structures often rely on cumbersome processes with limited resolution. Here, the authors report ultraviolet irradiation in ambient conditions for tuning structural parameters for organic small molecule hole transport layers.

Through shaping of colloidal particles, optical traps with prescribed force–displacement profiles are generated and are used to design a microscopic constant-force spring capable of delivering a constant piconewton-scale restoring force for displacements of several micrometres. Potential future applications include the imaging of sensitive biological membranes.

Observations from a borehole in the Kamb Ice Stream suggest that discrete subglacial discharge events dominate channel melt and sediment transport.

The superconducting gap structure of FeSe remains a debated issue. Here, Hashimoto et al. report momentum dependence of the gap in single- and multi-domain regions of orthorhombic FeSe crystals, revealing an unusual node lifting of the gap structure in multi-domain regions.

The authors identify thousands of genetic variants affecting RNA splicing in primary human chondrocytes and link several of them to osteoarthritis risk using genome editing and computational approaches.