Scientists from the Institute of Oceanology of the Chinese Academy of Sciences have discovered a massive hydrogen-rich hydrothermal system beneath the western Pacific seafloor, offering a new glimpse into deep-sea serpentinization—a process in which iron- and magnesium-rich rocks chemically react with water to form serpentine minerals and release hydrogen.

Organic molecules that combine efficient light emission for displays and strong light absorption for bioimaging are difficult to design due to conflicting structural requirements. Researchers from Japan addressed this challenge by developing CzTRZCN, a single molecule that switches structure depending on light interaction, enabling both two-photon absorption and thermally activated delayed fluorescence. These dual functions are useful in OLEDs and biomedical imaging, paving the way for versatile organic materials in electronics, medicine, and life sciences.

How can quantum technologies be developed responsibly? In the journal Science, researchers from the Technical University of Munich (TUM), the University of Cambridge, Harvard University and Stanford University argue that international standards should be established before laws are enacted. Prof. Urs Gasser explains why the authors propose a quality management system for quantum technologies, how standards create trust and where even competing countries such as China and the US can cooperate.

Scandium aluminium nitride (ScAlN) has emerged as a promising barrier material for improving the performance of gallium-nitride (GaN)-based high electron mobility transistors (HEMTs). However, current methods for growing ScAlN layers on GaN require expensive equipment and high temperatures. In a new study, researchers investigated how sputtering can be used to successfully grow ScAlN layers on GaN at relatively lower temperatures and reduced costs, paving the way towards commercialization of high-performance ScAlN-based GaN devices.

This study reveals that female Helicoverpa armigera moths utilize plant-emitted CO₂ as a key cue for egg-laying, preferring young leaves with higher CO₂ emissions to enhance offspring survival. However, the increase of CO₂ concentration in the atmosphere disrupts this oviposition strategy. Three gustatory receptors (HarmGR1, HarmGR2, and HarmGR3) were essential for CO₂ detection in H. armigera. Disrupting any of these receptors impaired CO₂ sensing and oviposition behavior. These findings highlight how climate change may alter insect reproduction and crop pest dynamics.

Solid-oxide fuel cells are a promising material for future green energy infrastructure due to their high efficiency and long lifespan. However, they require operation at high temperatures of around 700-800℃. Now researchers at Kyushu University have succeeded in developing a new SOFC material with an efficient operating temperature of 300℃. The team expects that their new findings will greatly accelerate the practical application of green energy devices.