Comprehensive screening analysis of organohalogen compounds in blubber samples of 11 toothed whale species stranded on Japanese coasts revealed species-specific accumulation profiles, with a total of over 300 organohalogen compounds detected. For the first time, the composition profiles of marine natural products were found to be useful indicators of the feeding habitats and migration history of individual whale species. The research findings were published in Environmental Science & Technology on February 14, 2025.

This study provides an innovative approach to achieving self-biased water splitting by coupling spectral beam splitting with a PV-PEC system, resulting in improved solar energy harvesting efficiency.

Tokyo, Japan – A team led by a member of Tokyo Metropolitan University have made advances in the search for dark matter, observing galaxies using new spectrographic technology and the Magellan Clay Telescope. With a mere 4 hours of observations, precise measurements in the infrared range have set new limits on the lifetime of dark matter. Their findings highlight the crucial utility of their technology and extend the search to less explored parts of the spectrum.

Nanozymes are synthetic materials that have enzyme-like catalytic properties, and they are broadly used for biomedical purposes, such as disease diagnostics. However, inorganic nanozymes are generally toxic, expensive, and complicated to produce, making them unsuitable for the agricultural and food industries. A University of Illinois Urbana-Champaign research team has developed organic-material-based nanozymes that are non-toxic, environmentally friendly, and cost effective. In two new studies, they introduce next-generation organic nanozymes and explore a point-of-use platform for molecule detection in agricultural products.

Tsinghua University Press announces the 2025 Carbon Future Young Investigator Award.

Quantum dot light-emitting diodes (QLEDs) have made rapid progress in luminescence, efficiency, and stability, making them promising candidates for displays and solid-state lighting applications. However, achieving high-performance QLEDs with high color purity remains a persistent challenge, particularly red QLEDs, thus limiting the popularity of ultra-high definition devices. Recently, Soochow University, in collaboration with Macau University of Science and Technology and other research institutes, reported a facile high-temperature successive ion layer adsorption and reaction (HT-SILAR) strategy for the growth of high-quality, large-particle, alloyed red QDs. These QDs exhibit a near-unity photoluminescence quantum yield (PLQY), and narrow emission with a full width at half maximum (FWHM) of 17.1 nm. As a result, a record external quantum efficiency (EQE) of 38.2%, luminance over 120,000 cd m⁻², and exceptional operational stability T₉₅ (tested at 1,000 cd m⁻²) of 24,100 hours were achieved for QLEDs. This work opens new avenues for synthesizing high-quality QDs with high color purity and was published in Science Bulletin.