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Polycarbonates and polyesters with materials properties like those of high-density polyethylene can be recycled chemically by depolymerization to their constituent monomers, re-polymerization yielding material with uncompromised processing and materials properties.
Using lanthanide-doped nanomaterials and flexible substrates, an approach that enables flat-panel-free, high-resolution, three-dimensional imaging is demonstrated and termed X-ray luminescence extension imaging.
Structures of the human sodium-dependent citrate transporter NaCT in complexes with citrate or a small-molecule inhibitor reveal how the inhibitor—which binds to the same site as citrate—arrests the transport cycle of NaCT.
During the repair of double-stranded DNA breaks, cohesin mediates the extrusion of loops of DNA along which phosphorylated H2AX spreads to establish a repair zone.
Nano-Raman spectroscopy reveals localization of some vibrational modes in reconstructed twisted bilayer graphene and provides qualitative insights into how electron–phonon coupling affects the vibrational and electronic properties of the material.
Suitably shaped X-ray pulses are used to coherently steer the quantum dynamics of atoms’ nuclei rather than their electrons, with few-zeptosecond temporal stability of the phase control.
Siberian mammoth genomes from the Early and Middle Pleistocene subepochs reveal adaptive changes and a key hybridization event, highlighting the value of deep-time palaeogenomics for studies of speciation and long-term evolutionary trends.
Mesocrystal formation is investigated for haematite in the presence of oxalate, showing that chemical gradients at interfaces cause nucleation near surfaces rather than in the bulk, followed by particle attachment.
The tumour microenvironment is low in glucose and high in the alternative metabolite lactate, which regulatory T cells are shown here to use, maintaining their ability to suppress effector immune cells.
Specific macrophage populations provide a transient niche that activates muscle stem cells after muscle injury and supply proliferation-inducing cues that govern the repair process mediated by these cells in both zebrafish and mouse injury models.
Dispersion of colloidal disks in a nematic liquid crystal reveals several low-symmetry phases, including monoclinic colloidal nematic order, with interchange between them achieved through variations in temperature, concentration and surface charge.
Atmospheric data and chemical-transport modelling show that CFC-11 emissions from eastern China have again decreased, after increasing in 2013–2017, and a delay in ozone-layer recovery has probably been avoided.
Atmospheric concentration measurements at remote sites around the world reveal an accelerated decline in the global mean CFC-11 concentration during 2018 and 2019, reversing recent trends and building confidence in the timely recovery of the stratospheric ozone layer.
The Moderna (mRNA-1273) and Pfizer–BioNTech (BNT162b2) vaccines elicit anti-RBD antibodies similar to those elicited through natural infection with SARS-CoV-2, but their potent neutralizing activity was reduced or abolished by new viral variants of concern.
A compact, high-performance silicon photonics-based light detection and ranging system for three-dimensional imaging is developed that should be amenable to low-cost mass manufacturing
A logical qubit encoded in multi-photon states of a superconducting cavity is protected with autonomous correction of certain quantum errors by tailoring the dissipation it is exposed to.
