Chemistry & Physics
Updates every hour. Last Updated: 8-May-2025 22:09 ET (9-May-2025 02:09 GMT/UTC)
Simultaneous acceleration of sulfur reduction and oxidation on bifunctional electrocatalytic electrodes for quasi-solid-state Zn-S batteries
Science China PressIn a paper published in SCIENCE CHINA Chemistry, a bifunctional electrocatalytic sulfur matrix that simultaneously accelerates sulfur reduction and ZnS oxidation is proposed to realize a highly efficient Zn-S cell. It is revealed that the N-heteroatom hotspots are more favorable for facilitating the conversion of S to ZnS while the CoO nanocrystal substantially lowers the ZnS activation energy barrier thereby suppressing the formation of disproportionation species (e.g., SO42−) and accumulation of inactive ZnS.
- Journal
- Science China Chemistry
Uncovering a centaur’s tracks: UCF scientists examine unique asteroid-comet hybrid
University of Central FloridaPeer-Reviewed Publication
Using the James Webb Space Telescope, UCF Florida Space Institute (FSI) scientists recently led a team that found, for the first time, that Chiron has surface chemistry unlike other centaurs. Its surface it has both carbon dioxide and carbon monoxide ice along with carbon dioxide and methane gases in its coma, the cloud-like envelope of dust and gas surrounding it.
- Journal
- Astronomy and Astrophysics
ISS National Lab-sponsored projects on cancer, neurodegenerative conditions, and more return from space station
International Space Station U.S. National LaboratoryBusiness Announcement
iEnergy has been officially included in the ESCI
Tsinghua University PressGrant and Award Announcement
iEnergy has been officially included in the Emerging Sources Citation Index (ESCI) by Web of Science, a leading global provider of scientific and scholarly research information.
Application of heavy-ion irradiation mutagenesis to improve the production efficiency of the antifungal drug micafungin
Tsinghua University PressPeer-Reviewed Publication
Micafungin is a semisynthetic echinocandin antifungal agent derived from fungal natural product FR901379 produced by Coleophoma empetri, which faces challenges in rational transformation of industrial strains due to poor chassis performance and unclear high-yield mechanisms. Recently, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences and Institute of Modern Physics Chinese Academy of Sciences cooperated on heavy-ion irradiation mutagenesis, significantly improving the production performance of FR901379 (253.7%), and analyzed the heavy-ion irradiation damage repair mechanism and high-yield mechanism. This study not only provides better chassis cells and theoretical guidance for subsequent metabolic engineering modifications, but also provides a reference for the application of heavy-ion irradiation in filamentous fungal breeding.
- Journal
- Mycology: An International Journal on Fungal Biology
Researchers detect elevated levels of PFAS in some fitness tracker and smartwatch bands
University of Notre DamePeer-Reviewed Publication
- Journal
- Environmental Science & Technology Letters