In comet dust, researchers discovered composite organic-inorganic mineral grains that are likely to be the original “bricks and mortar” of the solar system. “Forensic” samples preserved from the birth of the solar system allow investigations into the nature of the atomic and molecular ancestry of the terrestrial planets and life on Earth. Read more »
A 2D Lattice of Molecular Qubits for Quantum Computing
Researchers developed a way to build a 2D lattice of molecular-spin qubits (quantum bits of information), with control over qubit orientation and localization. The work enables the integration of molecular quantum-information hardware into the scalable, robust, solid-state architectures needed for performing quantum computation. Read more »
Structure Reveals Mechanism Behind Periodic Paralysis
X-ray crystallography of a membrane protein provided a structural understanding of how a single mutation can result in periodic muscle paralysis. The results suggest possible drug designs that could provide relief to patients with a genetic disorder that causes them to be overcome suddenly with profound muscle weakness. Read more »
Oxygen Vacancies Matter in the LaNiO3 Metal–Insulator Transition
Electronic structure measurements using x-ray absorption spectroscopy suggest that oxygen vacancies contribute to the metal–insulator transition in ultrathin films of LaNiO3. The results give scientists another “knob” to turn to tune this important transition, which could be useful for making advanced electronic devices. Read more »
Infrared Beams Show Cell Types in a Different Light
By shining highly focused infrared light on living cells, scientists hope to unmask individual cell identities and to diagnose whether the cells are diseased or healthy. Their focus is on developing a rapid, noninvasive way to easily identify cell types and features within living cells, to aid in biological and medical research. Read more »
Graphene-Based Catalyst Improves Peroxide Production
Scientists characterized a graphene-based electrocatalyst that potentially makes the production of hydrogen peroxide more selective, efficient, and cost effective. Hydrogen peroxide is an important commodity chemical with growing demand in many areas, including the electronics industry, wastewater treatment, and paper recycling. Read more »
A Designed Material Untangles Long-Standing Puzzle
The origin of the metal-to-insulator transition in a key material system was revealed by nanostructures designed to decouple simultaneous phase transitions. This approach could lead to new materials with emergent physics and unique electronic properties, supporting broader research efforts to revolutionize modern electronics. Read more »
Structures Reveal New Target for Malaria Vaccine
Researchers isolated human-derived antibodies that protect against malaria, and protein-structure studies revealed the antibodies’ site of attack. The discovery paves the way for the development of a more effective and practical human vaccine for malaria, which is responsible for half a million deaths every year. Read more »
Experimental Evidence of Chiral Ferrimagnetism in Amorphous GdCo Films
Harnessing high‐resolution Lorentz microscopy, Robert Streubel and co‐workers visualize chiral ferrimagnetic domain walls in amorphous films, revealing a composition dependence that potentially enables a temperature control of intrinsic domain wall properties. The reconstructed electron phase (magnetic induction) of achiral Bloch domain walls is shown here. Read more »
Reversible Fe(II) uptake/release by magnetite nanoparticles
The coexistence of magnetite and aqueous Fe2+ is common in anoxic subsurface environments and can have a great influence on important biogeochemical redox processes. This study demonstrates that the flow direction of electron equivalents in the form of Fe(II) across the magnetite–solution interface changes in a predictable fashion by altering solution pH, background Fe2+(aq) concentration, and magnetite loading. Read more »
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