Research Briefing in 2024

The Haber–Bosch process for making ammonia has been world-changing, but is highly energy-intensive owing to the high temperatures and pressures involved. A detailed understanding of the catalytic steps that occur in the basic reactions, and what limits them, opens the way to developing greener versions of the process.

An analysis of the genomes of hybrids of distinct swordtail fish species uncovered a lethal incompatibility between certain combinations of nuclear and mitochondrial genes that encode subunits of complex I — a component of the mitochondrial respiratory chain. The evolutionary history of this incompatibility indicates that the genes involved were transferred between the species through hybridization in the past.

Supersolids are long-sought-after quantum materials with two seemingly contradictory features: a rigid solid structure and superfluidity. A triangular-lattice cobaltate material provides evidence for a quantum spin analogue of supersolidity, with an additional giant magnetocaloric effect — discoveries that pave the way for helium-free cooling to temperatures below 1 kelvin with frustrated quantum magnets.

High-entropy ceramics can be transformative for several applications, but the development of this class of materials is limited by costly and time-consuming experimental processes. The disordered enthalpy–entropy descriptor is a mathematical formula that accelerates the computational discovery of synthesizable high-entropy ceramics, and has already guided the synthesis of nine new high-entropy carbonitrides and borides.

A type of sodium channel previously thought to be specific to neurons is also present in chondrocytes — cells that are crucial for joint health. Despite having low density, the sodium channels have an outsized role in the progression of osteoarthritis, and their genetic deletion or pharmacological inhibition reduced joint damage in mouse models.