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News from CAS Headquarters

Updates every hour. Last Updated: 25-Dec-2025 20:11 ET (26-Dec-2025 01:11 GMT/UTC)

19-Dec-2025

Researchers show impact of mountain building and climate change on alpine biodiversity

Chinese Academy of Sciences Headquarters
Peer-Reviewed Publication

Researchers from Xishuangbanna Tropical Botanical Garden of the Chinese Academy of Sciences, along with collaborators, explored the impact of mountain building and climate cooling over 30 million years across five major mountain systems in the Northern Hemisphere and revealed that these processes are key drivers of the rich plant diversity found in the Earth's alpine biome.

Journal: Science Advances

16-Dec-2025

Scientists discover how cell walls guide stem cells

Chinese Academy of Sciences Headquarters
Peer-Reviewed Publication

A new study led by Dr. YANG Weibing from the Center for Excellence in Molecular Plant Sciences of the Chinese Academy of Sciences has discovered a hidden "molecular gatekeeper" that controls the stiffness of these walls, directly guiding the fate of plant stem cells.

Journal: Science

16-Dec-2025

Researchers develop new strategy to improve spray-coated perovskite device performance

Chinese Academy of Sciences Headquarters
Peer-Reviewed Publication

A research team from the Qingdao Institute of Bioenergy and Bioprocess Technology (QIBEBT) of the Chinese Academy of Sciences has developed a confined crystallization strategy. This approach reconstructs—i.e., redesigns—the crystallization pathway during spray coating at its source through solvation structure regulation. Specifically, the team established a localized high-concentration (LHC) precursor system within individual spray droplets, enabling precise control over nucleation behavior during film formation.

Journal: Joule

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News from CAS Institutes

Updates every hour. Last Updated: 25-Dec-2025 20:11 ET (26-Dec-2025 01:11 GMT/UTC)

24-Dec-2025

Triboluminescence of metal halide perovskite films

Light Publishing Center, Changchun Institute of Optics, Fine Mechanics And Physics, CAS
Peer-Reviewed Publication

The triboluminescence (TL) of metal halide perovskite (MHP) films is found for the first time. Scraping the MHP film with a lower Fermi-level material (e.g., Cu) causes electron transfer from the MHP, creating a positive surface electric field, which stretches the MHP lattice, enhancing the photoluminescence (PL). Scraping the MHP film with a higher Fermi-level material (e.g., Al), instead, quenches the PL. This work reveals the unique TL mechanism in MHPs, opening up new research avenues for appealing perovskite materials.

Journal: Light Science & Applications
Funder: Strategic Priority Research Program of the Chinese Academy of Sciences, DICP I202456, Liaoning Revitalization Talents Program

23-Dec-2025

New study uncovers the lingering, evolving threat of "thirdhand smoke" in our homes

Institute of Atmospheric Physics, Chinese Academy of Sciences
Peer-Reviewed Publication

While the dangers of secondhand smoke are widely recognized, a new study reveals a more persistent and stealthier hazard hiding in our indoor spaces: "Thirdhand Smoke." This residue, which lingers on surfaces long after a cigarette is put out, is not just a stale smell but a dynamic source of continuous air pollution.

Journal: Building and Environment

22-Dec-2025

Study quantifies ‘hot drought’ impact: 2025 Los Angeles wildfire risk amplified by up to 210%

Institute of Atmospheric Physics, Chinese Academy of Sciences
Peer-Reviewed Publication

As the one-year anniversary of the devastating early January 2025 wildfires in Los Angeles approaches, a pressing question remains: what made these fires, among the most destructive in the region's history, so extreme? New research now provides a quantifiable answer, pinpointing the critical role of combined high temperatures and drought conditions.

Journal: Advances in Atmospheric Sciences

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