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Open Access journal
ISSN (Online) 2041-1723
Published by Nature Publishing Group [110 journals]
- Experimental evidence of new tetragonal polymorphs of silicon formed
through ultrafast laser-induced confined microexplosion
Abstract: Ordinary materials can transform into exotic phases with new crystal structures at high pressure and temperature. Here, the authors demonstrate metastable phases of silicon, created by confined microexplosions initiated by ultrafast laser pulses, that are preserved for further utilisation.
- Corrigendum: Reduced IFNλ4 activity is associated with improved HCV
clearance and reduced expression of interferon-stimulated genes
- Lost cold Antarctic deserts inferred from unusual sulfate formation and
Abstract: Due to a paucity of terrestrial data, knowledge of the size of the East Antarctic ice sheet in the past is limited. Here, the authors present isotope data of sulfates from the Lewis Cliff Ice Tongue moraine, which suggest temporary existence of ice-free conditions in central Antarctica since the Miocene.
- Atomic species identification at the (101) anatase surface by simultaneous
scanning tunnelling and atomic force microscopy
Abstract: Anatase is a pivotal material in devices for energy-harvesting applications and catalysis. Here, Stetsovych et al . demonstrate the potential of simultaneously combining atomic force microscopy and scanning tunnelling microscopy to identify the atomic species populating the (101) surface of anatase.
- Co-translational capturing of nascent ribosomal proteins by their
Abstract: The synthesis of ribosomes requires the orderly assembly of many proteins and large RNA molecules, a process that involves several assembly factors. Here the authors show that dedicated chaperones capture the N termini of specific nascent ribosomal proteins to promote folding and assembly into maturing ribosomes.
- Glycan complexity dictates microbial resource allocation in the large
Abstract: The human gut microbiota helps us to degrade complex dietary carbohydrates such as xylan and, in turn, the carbohydrate breakdown products control the structure of the microbiota. Here the authors characterize the xylan-degrading apparatus of a key member of the gut microbiota, Bacteroides ovatus .
- Modulation of the molecular spintronic properties of adsorbed copper
Abstract: Modulation of the spin states of molecules adsorbed on metal surfaces facilitates potential spintronic applications. Here, the authors demonstrate the tuning of the electronic interaction between a gold surface and the ligand of a corrole complex, tuning its spin state through fused-ring-expansion.
- Structure and gating of the nuclear pore complex
Abstract: Nuclear pore complexes (NPCs) are large macromolecular assemblies that mediate the exchange of molecules between the nucleus and cytoplasm. Here the authors present a ∼20 Å cryo-EM structure of the X. laevis NPC in different states of transport to propose a model for the architecture of the NPC’s molecular gate within its central channel.
- Hyperbolic phonon-polaritons in boron nitride for near-field optical
imaging and focusing
Abstract: Hyperbolic phonon polariton modes in natural hyperbolic materials could have uses in near-field optical imaging, guiding, and focusing applications. Here Li et al. demonstrate enlarged imaging and super-resolution focusing from a flat slab of hexagonal boron nitride enabled by hyperbolic phonon polariton modes.
- Probing three-dimensional sodiation–desodiation equilibrium in
sodium-ion batteries by in situ hard X-ray nanotomography
Abstract: In situ 3D visualization of sodium-ion battery processes is challenging due to the highly active sodium metal and the sluggish kinetics. Here, the authors present a X-ray tomography technique, which enables tracking the sodiation–desodiation process of a Sn anode in battery operation.
- Sprite streamer initiation from natural mesospheric structures
Abstract: Sprites, electrical discharges in the upper atmosphere, are thought to be triggered by inhomogeneities. Here the authors present numerical models and propose that mesospheric structures created by atmospheric gravity waves can initiate sprite streamers, and also provide observations supporting this theory.
- Pliocene cooling enhanced by flow of low-salinity Bering Sea water to the
Abstract: Late Pliocene cooling led to the glaciation of the Northern Hemisphere, yet its trigger remains unclear. Here, the authors present neodymium and lead isotope records from the Bering Sea, and propose that the introduction of low-salinity water into the Arctic Ocean preconditioned Pliocene cooling.
- Decarbonylative organoboron cross-coupling of esters by nickel catalysis
Abstract: The Suzuki-Miyaura cross-coupling is a mainstay of organic synthesis, allowing carbon-carbon bond formation between a variety of coupling partners. Here, the authors report a decarbonylative process, whereby alkyl or aryl esters can be coupled with organoboron compounds using nickel catalysts.
- Cidea improves the metabolic profile through expansion of adipose tissue
Abstract: Unlike rodents, humans produce the protein Cidea in white adipose tissue, where it associates with lipid droplets. Here the authors generate mice that express human Cidea in fat tissues to show Cidea exerts beneficial metabolic effects by regulating the expansion of visceral fat in response to a high-fat diet.
- Extreme ultraviolet imaging of three-dimensional magnetic reconnection in
a solar eruption
Abstract: Magnetic reconnection is a fundamental energy release process taking place in various astrophysical environments, but it is difficult to observe it directly. Here, the authors provide evidence of three-dimensional magnetic reconnection in a solar eruption using combined perspectives of two spacecraft.
- Bipyramid-templated synthesis of monodisperse anisotropic gold
Abstract: Tuning the morphology of nanoparticles can alter their optical properties but often at the cost of monodispersity. Here, the authors report the synthesis of monodisperse anisotropic gold nanoparticles with various tip geometries as well as highly tunable size augmentations from purified gold bipyramids.
- Sustainability and dynamics of outcrop-to-outcrop hydrothermal circulation
Abstract: Much hydrothermal circulation occurs away from the mid-ocean ridges and out on ridge flanks, affecting lithospheric heat deficit, solute fluxes, and influencing the biosphere. Here, the authors use 3D simulations to look at what controls the circulation and flow rate between and through seamounts.
- Adiabatic elimination-based coupling control in densely packed
Abstract: Optical communications and quantum operations require active coupling control in closely packed integrated photonic circuits. Here, Mrejen et al. exploit adiabatic elimination to demonstrate active coupling control between two closely packed waveguides by tuning the mode index of an in-between decoupled waveguide.
- Specificity and catalysis hardwired at the RNA–protein interface in
a translational proofreading enzyme
Abstract: The editing domain of aminoacyl-tRNA synthetases is responsible for removing non-cognate amino acids from mischarged tRNAs. Here the authors show that the D -aminoacyl-tRNA deacylase fold of archaeal ThrRS does not rely on protein side chains for substrate specificity and catalysis.
- Kinetics and fracture resistance of lithiated silicon nanostructure pairs
controlled by their mechanical interaction
Abstract: It is imperative to understand how individual Si nanostructures interact in battery operations. Here, the authors design well-defined crystalline Si nanopillars and show how mechanical interactions of neighbouring Si structures affect their reaction kinetics and fracture resistance during electrochemical lithiation.
- Complex structural dynamics of nanocatalysts revealed in Operando
conditions by correlated imaging and spectroscopy probes
Abstract: Studying a catalyst during reaction ( operando conditions) can give significant insights into the changes a catalyst undergoes. Here, the authors use an operando approach to correlate X-ray spectroscopy and electron based imaging techniques to measure the dynamic changes in Pt nanoparticles during the catalytic hydrogenation of ethylene.
- Supramolecular amplification of amyloid self-assembly by iodination
Abstract: Amyloid assemblies lie at the heart of many physiological functions, as well as being the cause of numerous diseases. Here, the authors subtly modify wild-type pentapeptides with halides, and discover that the new halogen bonding interactions have a remarkable influence on their physical properties.
- A porous metal-organic framework with ultrahigh acetylene uptake capacity
under ambient conditions
Abstract: The efficient storage of high-energy gaseous fuels is problematic due to the risk of explosion. Here, the authors design and employ a metal-organic framework composed of Cu(II) and an octacarboxylate ligand, which is able to store acetylene in high density but at atmospheric pressure.
- In vivo nanoparticle-mediated radiopharmaceutical-excited fluorescence
Abstract: Insufficient imaging sensitivity can make it challenging to assess early stage tumour lesions in vivo . Here, the authors present the radiopharmaceutical-excited fluorescence imaging technique that can detect tumour lesions less than 2 mm in size in living mice.
- High rates of anaerobic methane oxidation in freshwater wetlands reduce
potential atmospheric methane emissions
Abstract: Freshwater wetlands are among the largest natural sources of methane to the atmosphere. Here, the authors report rates of anaerobic methane oxidation which rival those in marine environments, highlighting the importance of a long-overlooked anaerobic methane sink.
- Vibrational spectroscopy at electrolyte/electrode interfaces with graphene
Abstract: Understanding of electrolyte-electrode interfaces is limited due to the lack of suitable probing techniques. Here, the authors present a vibrational spectroscopy based on graphene gratings, which enables sensitive and interface-specific detection of molecular vibrations at electrolyte-electrode interfaces.
- Corrigendum: Evidence for photogenerated intermediate hole polarons in ZnO
- Variable Holocene deformation above a shallow subduction zone extremely
close to the trench
Abstract: Information regarding tectonic motion from before instrumental records can be found from palaeoshorelines and the reconstruction of sea level from observations. Here, the authors study corals uplifted by past earthquakes near the Solomon Islands and assess the Holocene deformation that took place there.
- PPL2ab neurons restore sexual responses in aged Drosophila males through
Abstract: We currently lack a detailed understanding of the neurobiological basis for the decline of male sexual desire with age. Here the authors demonstrate that restoring impaired dopaminergic signalling in a specific cluster of neurons in the Drosophila brain increases sexual behaviour in ageing male flies.
- Early emergence of Yersinia pestis as a severe respiratory pathogen
Abstract: Yersinia pestis , which evolved from a gastrointestinal pathogen, causes pneumonic and bubonic plague. Here Zimbler et al. show that the gain of a single protein enabled Y. pestis to first cause pneumonic plague, and one amino-acid change in the same protein then allowed the bacteria to efficiently cause bubonic plague.
- Metabolic and metagenomic outcomes from early-life pulsed antibiotic
Abstract: The potential recovery of the human gut microbiota after an antibiotic treatment, and its effects on our health, are poorly understood. Here, the authors use a mouse model mimicking paediatric antibiotic use to shed new light into these processes.
- Grb2 monomer–dimer equilibrium determines normal versus oncogenic
Abstract: Grb2 is an adaptor protein that can exist as a dimer that dissociates on phosphorylation of Y160. Here, the authors show that only the monomeric protein is capable of activating mitogen-activated protein kinase signal transduction and hence control oncogenic outcome.
- Strong piezoelectricity in single-layer graphene deposited on SiO2 grating
Abstract: Pristine graphene is not piezoelectric, but adsorbing dopant atoms can induce a piezoresponse by breaking the material’s inversion symmetry. Here the authors demonstrate strong out-of-plane piezoelectricity in graphene on a silica substrate, providing a system for two-dimensional sensing and actuation.
- The sorting protein PACS-2 promotes ErbB signalling by regulating
recycling of the metalloproteinase ADAM17
Abstract: ErbB signalling is stimulated by the release of its ligands from the cell surface through metalloproteinase-dependent cleavage. Dombernowsky et al . show that this process is controlled by the sorting protein PACS-2, which enhances ErbB ligand release by regulating trafficking of the metalloprotease ADAM17.
- Non-redundant requirement for CXCR3 signalling during tumoricidal T-cell
trafficking across tumour vascular checkpoints
Abstract: Tumours secrete many lymphocyte-attracting chemokines. Here the authors show that despite the abundance of their ligands, CCR2 and CCR5 do not mediate trafficking of effector CD8 T cells into the tumour, whereas CXCR3 is essential for this process and for T-cell-based elimination of melanoma in mice.
- Design and discovery of a novel half-Heusler transparent hole conductor
made of all-metallic heavy elements
Abstract: Materials that are both electrically conducting and transparent to light are vital for optoelectronic devices, but are rare. Here, the authors perform a quantum mechanical search for such materials and identify the compound TaIrGe as an unexpected possibility, which they then synthesize.
- Associative memory realized by a reconfigurable memristive Hopfield neural
Abstract: Memristors are passive electrical components that can act like simple memories. Here, the authors use an array of hafnium oxide memristors to create a type of artificial neural network, known as a Hopfield network, that is capable of retrieving data from partial information
- Force-induced chemical reactions on the metal centre in a single
Abstract: The investigation of the chemical reactivity of metal centres in metalloproteins in aqueous solution is challenging. Here, the authors demonstrate the use of single molecule force spectroscopy to study the chemical reactivity of the iron-sulfur centre in rubredoxin in aqueous solution.
- Adaptive rheology and ordering of cell cytoskeleton govern matrix rigidity
Abstract: Adherent cells actively probe the rigidity of their substrates. Gupta et al . show that actin cytoskeleton rheology transitions from fluid to solid with increased substrate stiffness along with an isotropic to nematic ordering, implicating the remodelling of the whole actin network in rigidity sensing.
- Large Seebeck effect by charge-mobility engineering
Abstract: The Seebeck effect causes an electrical potential across a temperature gradient in a material, and is therefore useful for generating useful current from waste heat. Here, the authors show that the Seebeck effect can arise due to charge-carrier relaxation in addition to the conventional mechanism.
- Silicon carbide-free graphene growth on silicon for lithium-ion battery
with high volumetric energy density
Abstract: The volume expansion of silicon is a big problem in lithium-ion batteries with silicon anodes. Here, the authors report direct graphene growth on silicon nanoparticles, which effectively mitigates the problem, leading to excellent electrochemical performance.
- Caenorhabditis elegans is a useful model for anthelmintic discovery
Abstract: Screening for new anthelmintic compounds that are active against parasitic nematodes is costly and labour intensive. Here, the authors use the non-parasitic nematode Caenorhabditis elegans to identify 30 anthelmintic lead compounds in an effective and cost-efficient manner.
- Nanoscale control of phonon excitations in graphene
Abstract: A fundamental understanding of electron–phonon interactions in graphene is crucial to developing graphene-based electronic and photonic devices. Here, the authors control the properties of phonons in graphene by tuning the interaction strength between graphene and an underlying platinum substrate.
- Single-site trinuclear copper oxygen clusters in mordenite for selective
conversion of methane to methanol
Abstract: Copper-exchanged zeolites with mordenite structure can mimic the active sites in particulate methane monooxygenase. Here, the authors show that mordenite micropores can stabilize trinuclear copper-oxo clusters that exhibit a high reactivity towards activation of carbon–hydrogen bonds in methane.
- Superstatistical analysis and modelling of heterogeneous random walks
Abstract: Conventional methods to quantify the migratory behaviour of cells assume that underlying parameters are constant. Mark et al. apply a superstatistical approach to extract time-dependent parameters of motile cells, and demonstrate an enhanced ability to distinguish between different migration strategies.
- Resonant tunnelling in a quantum oxide superlattice
Abstract: Quantum mechanical resonant tunnelling is believed to be only feasible in semiconductor-based heterostructures due to high crystalline quality required, which restricts the number of viable materials. Here, the authors demonstrate resonant tunnelling in a deliberately designed complex-oxide superlattice.
- Temporal tweezing of light through the trapping and manipulation of
temporal cavity solitons
Abstract: Optical tweezing typically refers to the trapping and manipulation of particles using lasers. Here, Jang et al . demonstrate analogous manipulation of ultrashort cavity soliton-pulses in the time domain, trapped by the phase modulation of a continuous wave laser beam, and moved by modifying the phase profile.
- Caspase-8 scaffolding function and MLKL regulate NLRP3 inflammasome
activation downstream of TLR3
Abstract: Inflammasome activation requires a complex and incompletely understood network of signalling events. Here the authors characterize step-by-step contributions of TLR3, caspase-8, RIPK3 and MLKL to the activation of NLRP3 inflammasome in response to double-stranded RNA.
- Digital microfluidic immunocytochemistry in single cells
Abstract: The ability to measure signalling responses in single cells following short pulses of stimulus would shed insight into temporal thresholds for cell activation. Here the authors introduce a microfluidic platform that allows downstream phosphorylation cascades to be observed following as little as one second of stimulus exposure.
- Imaging an aligned polyatomic molecule with laser-induced electron
Abstract: Laser-induced electron diffraction can provide structural information on gas-phase molecules with high spatial and temporal resolution. Going beyond previous diatomic cases, Pullen et al. apply this approach to acetylene and show that it can be used to measure bond lengths for polyatomic molecules.
- Inherited coding variants at the CDKN2A locus influence susceptibility to
acute lymphoblastic leukaemia in children
Abstract: Genome-wide association studies indicate a strong genetic susceptibility to acute lymphoblastic leukaemia in children, though the effect on protein-coding genes is not fully understood. Here Xu and Zhang et al. identify a missense variant in CDKN2A which reduces tumour suppression.
- A plastic relationship between vinculin-mediated tension and adhesion
complex area defines adhesion size and lifetime
Abstract: Cell-matrix adhesions may increase or decrease in size in response to tension; however, the factors determining which of these responses predominates remain unclear. Hernández-Varas et al . quantify the plastic relationship between adhesion size and tension and use modelling to explain this behaviour.
- IL-21 induces antiviral microRNA-29 in CD4 T cells to limit HIV-1
Abstract: HIV-infected patients who maintain undetectable virus levels possess elevated plasma concentrations of IL-21. Here, Adoro et al . show that IL-21 inhibits early viral infection in humanized mice and suppresses HIV-1 replication in vitro by upregulating a microRNA via the regulatory protein STAT3.
- Lead iodide perovskite light-emitting field-effect transistor
Abstract: Hybrid organic–inorganic perovskites have shown great potential for use in optoelectronic applications. Here, the authors create solution-processed lead iodide perovskite light-emitting field-effect transistors and demonstrate both ambipolar behaviour and gate-assisted electroluminescence.
- Nanoscale memristive radiofrequency switches
Abstract: Radiofrequency switches based on micro-electromechanical systems or phase-change materials are large and require high voltages. Here, the authors demonstrate a nanoscale radiofrequency switch based on a memristive device with actuation voltages as low as 0.4 V and a typical cutoff frequency of 35 THz.
- The immunomodulating V and W proteins of Nipah virus determine disease
Abstract: Nipah virus (NiV) can be transmitted from bats and other animals to humans, causing severe encephalitis and respiratory disease. Here, Satterfield et al. show that the W protein of NiV modulates the host immune response and determines disease course in a ferret model of infection.
- Ultralow noise miniature external cavity semiconductor laser
Abstract: Optical metrology applications require lasers with high spectral purity but on-chip devices with sub-100 Hz linewidth are yet to be realized. Here, Liang et al. present a heterogeneously integrated, chip-scale semiconductor laser with 30 Hz integral linewidth and sub-Hz instantaneous linewidth.
- Exosomes released by keratinocytes modulate melanocyte pigmentation
Abstract: The activity of melanocytes determines skin pigmentation, and is regulated by a tight dialogue with keratinocytes. Here, the authors show that exosomes released by keratinocytes have a direct effect on melanocyte function, and exosome content is dependent on skin phototype and is modulated by ultraviolet B radiation.
- A genome-wide association study identifies multiple loci for variation in
human ear morphology
Abstract: The shape of the pinna varies widely in the general human population but the genetic basis of this variation is unknown. Here Adhikari et al. conduct a genome-wide association study in Latin Americans and discover seven gene regions influencing pinna morphology, including EDAR and TBX15 .
- Printable elastic conductors with a high conductivity for electronic
Abstract: Printable electronics is highly desirable for high throughput device manufacture. Here, Matsuhisa et al . report an electric ink, made of a self-assembled network of sliver flakes on the surface of a fluorine rubber matrix, which exhibits high conductivity and mechanical durability to achieve this goal.
- A random forest approach to capture genetic effects in the presence of
Abstract: The discovery and mapping of causal variants in genome-wide association studies requires taking into consideration a range of confounding factors that can impact the results of the analysis. Here Stephan et al . propose a mixed random forest that captures nonlinear associations while accounting for population structure simultaneously.
- Piezoelectric effect in chemical vapour deposition-grown atomic-monolayer
triangular molybdenum disulfide piezotronics
Abstract: Two-dimensional transition-metal-dichalcogenide materials should have strong piezoelectric properties, making them useful for nanosensors and piezotronics. Here, the authors experimentally demonstrate the piezoelectric effect in monolayer molybdenum disulfide and show how this can modulate conductivity.
- Two-dimensional isobutyl acetate production pathways to improve carbon
Abstract: Achieving high carbon yields is crucial for biotechnological production of metabolites in engineered microorganisms. Here, Tashiro et al . generate E. coli strains that produce acetyl-CoA and a derived metabolite (isobutyl acetate) in the absence of pyruvate decarboxylation, leading to increased carbon yields.
- Cell migration and antigen capture are antagonistic processes coupled by
myosin II in dendritic cells
Abstract: Dendritic cells alternate between fast and slow migratory behaviours, however in the absence of a component of the antigen processing machinery, migration is uniform and fast. Chabaud et al . now show that slow migration results from the relocalisation of myosin II to the cell front where it promotes antigen capture.
- IL-1 receptor antagonist-deficient mice develop autoimmune arthritis due
to intrinsic activation of IL-17-producing CCR2+Vγ6+γδ T
Abstract: Control of γδ T-cell activation remains incompletely understood. Here the authors show that during autoimmune arthritis development αβ CD4 + T cells recruit a subset of IL-17-producing γδ T cells to the joints, and that both components are essential to cause pathology in a mouse model of the disease.
- Lucilia cuprina genome unlocks parasitic fly biology to underpin future
Abstract: Lucilia cuprina is a parasitic blowfly of major economic importance worldwide that feeds on the tissues of animals such as sheep. Here, the authors sequence the genome of L. cuprina and provide insights into the fly’s molecular biology, interactions with the host animal and insecticide resistance.
- Understanding nanocellulose chirality and structure–properties
relationship at the single fibril level
Abstract: Cellulose is a material found in many different biological systems, but the fine structure at the single-molecule level is still being assessed. Here, the authors present high-resolution imaging of cellulose structures at the single particle level, finding evidence of chirality in bundles and fibrils.
- Haploinsufficiency for BRCA1 leads to cell-type-specific genomic
instability and premature senescence
Abstract: BRCA1 functions in all cell types to help preserve genomic stability but oncogenesis is restricted to only a few tissues. Here Sedic et al. demonstrate a novel BRCA1 haploinsufficiency-induced senescence pathway in epithelial cells.
- Membranes with artificial free-volume for biofuel production
Abstract: The free-volume of a polymer is a key parameter in its ability to permit through transport of small molecules. Here, the authors develop a way of introducing different degrees of artificial free-volume to a polymer membrane, and thus tailor its penetrability for applications including biofuel purification.
- Enantiomer-specific analysis of multi-component mixtures by correlated
electron imaging–ion mass spectrometry
Abstract: Detecting enantiomers in dilute mixtures of volatile organic compounds is a challenge. Here, the authors demonstrate a method to identify enantiomers and enantiomeric excess in a multi-component mixture containing two chiral species using laser mass spectrometry and photoelectron circular dichroism.
- Orbital reconstruction in nonpolar tetravalent transition-metal oxide
Abstract: The iridate compounds display interesting physical properties, including quasi-two-dimensional behaviour similar to cuprates. Bogdanov et al. explore the d -level structure of Sr 2 IrO 4 using electron spin resonance measurements and detailed calculations and find it is inverted compared to its normal ordering
- Thermal transport in phononic crystals and the observation of coherent
phonon scattering at room temperature
Abstract: Silicon-based semiconductors are attractive for thermoelectric devices, but their phonon-dominated thermal conductivity is preventing their use. Here, Alaie et al. observe coherent phonon boundary scattering in phononic crystals at room temperature by introducing large (=100 nm) air holes in the Si matrix.
- Glycan clustering stabilizes the mannose patch of HIV-1 and preserves
vulnerability to broadly neutralizing antibodies
Abstract: The glycan patch that covers the HIV-1 envelope protein gp120 can be targeted by broadly neutralizing antibodies. Here, Pritchard et al. show that structural changes in the glycans do not significantly hamper antibody recognition, supporting the glycan patch as a stable target for vaccine design.
- Disruption of p21-activated kinase 1 gene diminishes atherosclerosis in
apolipoprotein E-deficient mice
Abstract: Atherogenesis involves coordinated action of different cell types and factors. Here the authors show that the kinase Pak1 represents a key pro-atherogenic factor affecting the function of macrophages and vascular smooth muscle cells, including their production of proinflammatory cytokine IL-6 and chemokine MCP-1, and retention of cholesterol.
- A scanning cavity microscope
Abstract: Fluorescence from nanoparticles enables high-resolution optical imaging, but this approach is limited to those structures that emit light. Here, the authors demonstrate a microscope that uses a cavity to enhance the measurement of the alternative optical properties of absorption and dispersion.
- Linking megathrust earthquakes to brittle deformation in a fossil
Abstract: Recent megathrust earthquakes have been documented to cause large-scale stress changes, although this has not been identified in a fossil system. Here, the authors present data that establish a link between the observations at active subduction zones and the structural record preserved in ancient mountain belts.
- Aging mechanisms in amorphous phase-change materials
Abstract: Phase-change materials are a route to high-density data storage, but changes in their properties in time are a limiting factor. Here, the authors combine numerical simulations, photothermal deflection spectroscopy and impedance spectroscopy experiments to investigate the aging process in germanium telluride.
- Ionic transport in hybrid lead iodide perovskite solar cells
Abstract: Understanding the mechanism of ionic transport in organic–inorganic halide perovskites is crucial for the design of future solar cells. Here, Eames et al. undertake a combined experimental and computational study to elucidate the ion conducting species and help rationalize the unusual behaviour observed in these perovskite-based devices.