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The electronic behaviour of complex oxides such as LaNiO₃ depends on many intrinsic and extrinsic factors, making it challenging to identify microscopic mechanisms. Here the authors demonstrate the influence of oxygen vacancies on the thickness-dependent metal-insulator transition of LaNiO₃ films.

Microscopic imaging and biochemical studies show that sinuses in mouse and human form a highly dynamic surface that regulates fluid movement and immune cell surveillance via RAMP1-dependent regulation of smooth muscle contraction and RAMP2-dependent regulation of the sinus endothelial barrier.

The growing demand for rare earth elements (REEs) underscores the need for sustainable recovery methods and a reliable supply. Here the authors establish a platform using a yeast to produce bio-oxalic acid for REE recovery, achieving 99% REE recovery from low-grade ore.

The authors consider the changing sensitivity of the leaf-onset date to temperature (S_T) for boreal deciduous broadleaf forests. S_T increased between 1982–1996 and 1998–2012—potentially linked to enhanced chilling accumulation—but this increase is underestimated in phenology models.

The formation of exciton crystals is challenging because excitons possess short lifetimes and exhibit weaker interactions than electrons. Now, an exciton Wigner crystal is observed in a moiré electron–hole bilayer.

Aqueous two-phase systems have potential as biomimetic materials, but often lack stability and are prone to collapse. Here, the authors use interfacial assembly of chitin nanofibres and cellulose nanocrystals to prepare a biobased system with permeability and switchable motility.

Polymer thin films that emit and absorb circularly polarised light are promising in achieving important technological advances, but the origin of the large chiroptical effects in such films has remained elusive. Here the authors demonstrate that in non-aligned polymer thin films, large chiroptical effects are caused by magneto-electric coupling, not structural chirality as previously assumed.

The APOE-ε4 allele is the strongest genetic risk factor for late-onset Alzheimer’s disease, but it is not deterministic. Here, the authors show that common genetic variation changes how APOE-ε4 influences cognition.

Insights into regulatory T cell biology are accelerating therapeutic innovation in cancer immunotherapy, autoimmune diseases and transplant rejection.

A genome assembly method called hifiasm (ONT) allows the assembly of chromosomes from telomere to telomere without the need for ultra-long reads, and outperforms conventional methods on most evaluation metrics.

From 2014–2017, marine heatwaves caused global mass coral bleaching, where the corals lose their symbiotic algae. The authors find, this event exceeded the severity of all prior global bleaching events in recorded history, with approximately half the world’s reefs bleaching and 15% experiencing substantial mortality.

The authors study epitaxial thin films of the pyrochlore-sublattice compound LiTi2O4 by RIXS and ARPES. They observe cooperation between strong electron correlations and strong electron-phonon coupling, giving rise to a mobile polaronic ground state in which charge motion and lattice distortions are coupled.

To date, thermodynamic computers have been designed to work in thermal equilibrium. Here, the authors show that thermodynamic circuits can perform nonlinear computations, similar to those performed by neural networks, and do so at a specified observation time, whether in or out of equilibrium.

Genomic and transcriptomic analysis of samples from patients with multiple myeloma, followed by in vitro validation, indicate mechanisms of antigen escape in response to GPRC5D T cell-engager talquetamab, including biallelic deletions, small nucleotide variants, insertion-deletions and chromatin silencing.

Samples returned from asteroid Bennu by NASA’s OSIRIS-REx mission contain N-rich organics with prebiotic implications. This material probably formed in the earliest stages of the asteroid’s history possibly even before its water ice melted.

The authors demonstrate dual-probe multi-messenger imaging of high-energy-density plasmas based on laser-wakefield-accelerated electrons. This enables spatiotemporally resolved simultaneous probing of plasma hydrodynamics and electromagnetic field evolution with both x-ray and electron beams.

Natural products and their synthesis have always fascinated organic chemists, frequently providing the inspiration and testing ground for new synthetic methods. This Review considers examples of natural products that were prepared first synthetically and predicted to be natural products prior to their isolation from nature.

Graph neural networks built on physically motivated representations enable gradient-based optimization of complex upconverting nanoparticle heterostructures, revealing photophysical design rules and a roadmap for deep learning in nanoscience.

The existing ENCODE registry of candidate human and mouse cis-regulatory elements is expanded with the addition of new ENCODE data, integrating new functional data as well as new cell and tissue types.

This study demonstrates that the extracellular matrix (ECM) of the developing brain stabilizes recently born synapses. The authors identify a microglial metalloprotease that digests the ECM to increase the plasticity of these newborn synapses.

Urban heat islands and rising cooling demands highlight the need for sustainable nature-based solutions. A meta-analysis of 373 studies shows nature-based solutions cut daytime temperatures by 2.04 °C and cooling loads by 1.32%, with green infrastructure being the most effective across most climates.

Global Burden of Disease estimates show that between 1990 and 2023, the prevalence and burden of drug use disorders, inclusive of amphetamine, cannabis, cocaine and opioid use, have been increasing in high-income countries, particularly in the USA.

Fungal parasites infect key nitrogen-fixing cyanobacteria during Baltic Sea blooms, drawing on carbon and nitrogen reserves. Here, authors find up to a fifth of newly fixed nitrogen is diverted to fungi in the cyanobacterium Dolichospermum, altering the fate of new nitrogen and trophic transfer.

Modulation of random heteropolymers results in globular polymer clusters with catalytic activity mimicking proteins.

This Perspective explores the multiscale transport mechanisms of water and solutes in desalination and ion selective membranes, offering mechanistic insights to guide the design of next-generation membranes and nanoporous systems for applications in water purification, separations, and energy technologies.

Differentiating DCs express ALDH1A2, which produces retinoic acid and suppresses DC activity. Blocking this pathway with a new inhibitor, KyA33, enhances immune responses and boosts the effectiveness of DC cancer vaccines in mouse models.

Triacetic acid lactone (TAL) is a platform chemical with a wide range of applications. Here, the authors report the discovery of a polyketoacyl-CoA thiolase from Burkholderia sp. RF2-non_BP3, termed as BktBbr, which has unusually high in vivo and in vitro activity for production of TAL.

Here, the authors create a high-quality-factor chiral metasurface that enables record-high room-temperature valley-selective emission in MoSe₂ monolayers, independent of excitation polarization.

Cornell et al. show that target cells with low cortical tension induce macrophages to preferentially trogocytose, or engulf in small fragments, whereas target cells with high cortical tension tend towards phagocytosis.

Dedicated wind-sourced hydrogen (H2) can decarbonize industries but requires thousands of tonnes of H2 storage. Storing H2 as methylcyclohexane can outcompete alternative aboveground solutions with modest effects on delivery costs.

Ricca et al discover a new family of tubular pili in Microcystis aeruginosa, a harmful algal bloom-forming cyanobacterium. These pili are crucial for buoyancy by forming cell micro-colonies, which increases drag and prevents sinking. The pili also enrich microcystin and co-localize with iron-enriched extracellular matrix components, suggesting a vital role in bloom proliferation.

The rapid expansion of agricultural irrigation raises concerns about exacerbating water scarcity, but land–atmosphere interactions are often overlooked. This study isolates irrigation impacts from other drivers using a multi-model framework to reveal that historical irrigation expansion substantially reduces net atmospheric water influx, intensifying drying trends and accelerating terrestrial water storage depletion, urging immediate mitigation strategies.

The potential roles of viruses in microbial-induced permafrost thaw, which is accelerated by climate change, are unclear. Here, Trubl et al. sample a permafrost thaw gradient and identify thousands of new viruses carrying genes with metabolic-related functions, which might influence the fate of stored carbon.

Kalia et al. investigate metabolic changes in Alzheimer’s disease (AD) using blood metabolomics, and show that lysophosphatidylcholines are associated with early amyloidosis in AD as measured by P-tau181 and P-tau217.

The ALICE Collaboration provides details on the microscopic mechanism that ends up creating antideuteron in high-energy proton–proton collisions at the Large Hadron Collider.

The cofactor iron is essential for cellular energy metabolism. Proteomics reveals how the interplay of iron limitation with glucose signaling underlies how a green alga turns off photosynthesis during lipid accumulation.

Kinematic measurements of the Perseus galaxy cluster reveal two drivers of gas motions: a small-scale driver in the inner core associated with black-hole feedback and a large-scale driver in the outer core powered by mergers.

Humanity’s Last Exam, a multi-modal benchmark at the frontier of human knowledge, is designed to be an expert-level closed-ended academic benchmark with broad subject coverage.

Tree cover gains in the moist tropics (1982–2015) were 56% naturally regenerated forests and 27% managed tree systems, with forest type influencing carbon recovery. Effective forest restoration requires robust tracking of forest types established by restoration efforts.

Myeloperoxidase, a highly expressed neutrophil protein, disassembles nucleosomes, facilitating neutrophil extracellular trap (NET) formation, and binds stably to NETs extracellularly.

Current lithium-ion batteries still rely heavily on nickel (Ni), whose growing demand raises serious economic and environmental concerns. This work now presents a cathode that delivers longer cycle life than high-Ni chemistry while substantially reducing Ni use.

ENTRAP-seq systematically links protein sequence to transcriptional output in a native plant context.

Water-vapor interfaces have been studied with many techniques, yet open questions persist about their electronic and molecular structure. Here, the authors demonstrate the application of soft x-ray second harmonic generation to study the water surface by leveraging attosecond pulses at the LCLS and a flat liquid sheet microjet, providing insights on the H-bond structure.

The shift in fluorescence lifetime of tumour tissue with respect to normal tissue after systemic injection of the near-infrared dye indocyanine green can be used to distinguish tumour tissue from normal tissue with high accuracy.