New data show reduced overall PFAS exposures in subarctic ocean
Peer-Reviewed Publication
Updates every hour. Last Updated: 2-May-2026 06:16 ET (2-May-2026 10:16 GMT/UTC)
Pilot whale samples from 1986-2023 show that legacy PFAS are declining in the open ocean. Newer PFAS remain a major unknown and may be accumulating in near-source environments.
Professor Hirotoshi Mori (Department of Applied Chemistry, Faculty of Science and Engineering, Chuo University), together with Nichika Ozawa (first-year Ph.D. student at Ochanomizu University) and Assistant Professor Nahoko Kuroki of Ochanomizu University, has proposed a new design principle for QM/MM (quantum mechanics/molecular mechanics) simulations. The approach enables objective and automatic determination of the quantum-mechanical region based on electronic-state changes, addressing a long-standing challenge in multiscale molecular simulations. This work was published online in Advanced Science on December 23, 2025 (JST), an international journal that features conceptually innovative and interdisciplinary breakthroughs across materials science, life science, chemistry, and physics. This article will be published in issue 17 (March 23rd) of Advanced Science, and the cover design suggestion has been selected to be featured on a frontispiece in it. A frontispiece is a full-page image (similar to a cover) placed at the beginning of this article that highlights outstanding results.
Scientists have created the highest resolution map of the dark matter that threads through the Universe – showing its influence on the formation of stars, galaxies and planets.
Even with regular brushing, teeth can become stained from genetic factors or consuming foods and drinks like tomatoes and coffee. Chemical whiteners can help, but they can also damage teeth in the process. So, researchers reporting in ACS Nano have designed a prototype teeth-whitening powder that is activated by the vibrations from an electric toothbrush. The system both brightened and protected teeth in lab demonstrations.
Together with an international team, researchers from the Molecular Physics Department at the Fritz Haber Institute revealed how atoms rearrange themselves before releasing low-energy electrons in a decay process initiated by X-ray irradiation. For the first time, they gain detailed insights into the timing of the process – shedding light on related radiation damage mechanisms.
Muons are particles used to study fundamental physics and to image large structures such as volcanoes, bridges and ancient buildings. But despite their apparent benefits to science – and even society more broadly – muons only have a half-life of around one microsecond. Now researchers at the University of Plymouth have suggested a means of overcoming that, using intense laser pulses to reduce the rate of decay and at least double the muon’s lifetime.