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  • Dental plaque is no match for catalytic nanoparticles

    Twice-daily rinses of FDA-approved nanoparticles broke apart oral biofilms and prevented tooth decay in a study led by School of Dental Medicine researchers
    Koo ferumoxytol treatment
    Treatment with a nanoparticle and hydrogen peroxide (right panel) left little in the way of bacteria (in blue) or the sticky biofilm matrix (in red), making the combination a potent force against dental plaque.

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  • From the frontlines of climate change
    Mangroves growing on a small island separated from the mainland due to abrasion in  West Java.

    Image: Aditya Irawan/NurPhoto via AP Images

    From the frontlines of climate change

    People living on small islands and territories face mounting climate impacts, but little is known about their stance on the issue. Research from a team including Parrish Bergquist, assistant professor of political science, aims to fill those gaps.

    Sep 8, 2025

    A new way to guide light, undeterred
    Bo Zhen and He Li power a series of lasers atop a table.

    nocred

    A new way to guide light, undeterred

    Penn researchers developed a system that allows light to be guided through a tiny crystal, undeterred by bumps, bends, and back-reflections. Their findings pave the way for robust, controllable light-based chips, smarter routing for data links, and more stable lasers.

    Sep 8, 2025

    A summer of student enrichment, from big ideas to bold beats
    Grade school drummers in music class.

    A West Philadelphia High School student practices the drum as part of a July summer program in partnership with the Netter Center for Community Partnerships and nonprofit Musicopia. 

    nocred

    A summer of student enrichment, from big ideas to bold beats

    The Netter Center for Community Partnerships finished its summer of programming for West Philadelphia students, impacting 640 students and six University-Assisted Community Schools.

    Sep 2, 2025