• Researchers find the best way for bacteria to navigate maze-like environments

    Thursday, Dec 9, 2021
    by By Patricia Waldron, School of Engineering

    When bacteria spread through soil, tissues and other environments crammed with obstacles, keeping on the straight and narrow path leads to dead ends. Instead, bacteria move through open spaces until they get trapped, then reorient to hop through an opening to the next hole. A new model developed by Princeton researchers explains why this hop-and- trap strategy works for bacteria and how it could be optimized for self-propelled polymers.

  • New chip hides wireless messages in plain sight

    Tuesday, Nov 23, 2021
    by Engineering Communications

    Emerging 5G wireless systems are designed to support high-bandwidth and low-latency networks connecting everything from autonomous robots to self-driving cars. But these large and complex communication networks could also pose new security concerns.

  • Battery visionary Kelsey Hatzell on the power of interfaces

    Tuesday, Nov 16, 2021
    by Molly A. Seltzer, Andlinger Center

    Kelsey Hatzell made a career of seeing things that could not be seen. When she saw potential in nascent battery technology, one that could not be studied because of its opaque nature, she developed novel imaging techniques to see the hidden interface between the energy-carrying electrons and energy-generating electrodes. With it, she uncovered the ability of solid-state batteries to help store renewable energy power and reduce global emissions.

  • Ultra-pure semiconductor opens new frontier in the study of electrons

    Thursday, Nov 4, 2021
    by Scott Lyon, School of Engineering

    Princeton researchers have created the world's purest sample of gallium arsenide, a semiconductor used in devices that power such technologies as cell phones and satellites.

    The team baked their material down to one impurity for every 10 billion atoms, reaching a level of quality that outstrips even the world's purest silicon sample used in verifying the one-kilogram standard. The finished gallium arsenide chip, a square about the width of a pencil eraser, allowed the team to probe deep into the very nature of electrons.

  • Fractured artificial rock helps crack a 54-year-old mystery

    Friday, Nov 5, 2021
    by Adam Hadhazy, School of Engineering

    Princeton researchers have solved a 54-year-old puzzle about why certain fluids strangely slow down under pressure when flowing through porous materials, such as soils and sedimentary rocks. The findings could help improve many important processes in energy, environmental, and industrial sectors from oil recovery to groundwater remediation.

  • Projects that blaze new trails in research will receive Dean for Research Innovation funding

    Wednesday, Jul 21, 2021
    by Catherine Zandonella, Office of the Dean for Research

    Nine exploratory projects, from an effort to exploit inter-microbial warfare in the search for new antibiotics to the development of artificial intelligence for the transcription of ancient documents, have been selected to receive support through the Dean for Research Innovation Funds.

  • New method found for moving tiny artificial swimmers

    Friday, Jul 16, 2021
    by Adam Hadhazy, School of Engineering

    Princeton researchers have debuted a novel way of generating and potentially controlling locomotion in tiny objects called artificial swimmers. These swimmers have sparked considerable interest for their potential applications in medicine, industry and other sectors.

  • Shared prosperity is key to clean energy transition, say experts at E-ffiliates retreat

    Wednesday, Jul 14, 2021
    by Molly A. Seltzer, School of Engineering

    To successfully slash greenhouse emissions, the United States must ensure rural communities benefit from producing solar, wind, biofuels and other low-carbon fuels, panelists said at the annual Princeton E-ffiliates Partnership Retreat on June 3.

    “We need to get down to the grassroots, the real grassroots, and talk about ‘do I have a stake in this nation?’” Art Cullen, a Pulitzer-prize-winning reporter and editor of the Storm Lake Times, who sat on a panel about stakeholder perspectives, said about his community of Iowan corn growers.

  • Princeton's new research data environment offers security, collaboration

    Wednesday, Jul 14, 2021
    by Eoin O'Carroll, Princeton Research Computing

    Led by a research team at Princeton University, the New Jersey Families Study examines the lives of young children using an innovative methodology: The researchers put video cameras inside families’ homes. 

    The researchers recruited about 20 households who agreed to the unobtrusive cameras for two weeks. The project, which studies how families prepare their pre-school-aged children for school, promises to yield unprecedented insight into the lives of families with young children.


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