Rice postdoctoral research fellow Alessandro Alabastri, alumnus Andrew Treleaven â€™13 and graduate student Pratiksha Dongare attended the inaugural University Innovation and Entrepreneurship Showcase in Washington, D.C., to demonstrate SNOWater, a solar water desalination project they pioneered at Riceâ€™s Nanotechnology-Enabled Water Treatment Research Center. SNOWater converts high-salinity and polluted water to freshwater and allows the use of solar energy for off-the-grid water purification. The Nov. 14 showcase highlighted the role of federally funded university research in fueling entrepreneurship, innovation and competitiveness across the country. The Association of Public and Land-Grant Universities and the Association of American Universities in partnership with the National Academy of Inventors and VentureWell hosted the event.Â
Like a tuning fork struck with a mallet, tiny gold nanodisks can be made to vibrate at resonant frequencies when struck by light. In new research, Rice University researchers showed they can selectively alter those vibrational frequencies by gathering different-sized nanodisks into groups.
â€śIn the tuning fork analogy, it would be as if we could alter the sounds of several forks by bringing them close together,â€ť said Rice nanoscientistÂ Stephan Link, the lead researcher onÂ a studyÂ in this weekâ€™s Proceedings of the National Academy of Sciences. â€śBut at the nanoscale, we do not hear a tonal shift; we instead see a tiny change in color. Weâ€™ve shown that by grouping nanodisks, we can shift their acoustic resonance in an orderly and predictable way, which could be useful in optomechanics.â€ť
Like a tuning fork struck with a mallet, gold nanodisks on a glass surface can be made to vibrate at resonant frequencies with a pulse of laser light. Rice University researchers found that acoustic vibrations from larger particles modified the resonant frequencies of smaller particles nearby. (Image courtesy of C. Yi/Rice University)
To make continuous, strong and conductive carbon nanotube fibers, itâ€™s best to start with long nanotubes, according to scientists at Rice University.
The Rice lab of chemist and chemical engineer Matteo Pasquali, which demonstrated itsÂ pioneering method to spin carbon nanotube into fibersÂ in 2013, has advanced the art of making nanotube-based materials with two new papers in the American Chemical Societyâ€™sÂ ACS Applied Materials and Interfaces.
Iron impurities are easy to see in a bundle of carbon nanotubes viewed through a transmission electron microscope. Researchers at Rice University and the National University of Singapore are leading the charge to purify nanotubes for use in continuous, strong and conductive carbon nanotube fibers. Courtesy of the Pasquali Group
NEST360Â°, a visionary 10-year effort to save the lives of 500,000 African babies per year, is a finalist for the MacArthur Foundationâ€™s first $100 millionÂ 100&ChangeÂ grant.
NEST360Â°Â is one ofÂ four 100&Change finalistsÂ named today by the foundation. One finalist will be awarded $100 million in December. TheÂ 100&ChangeÂ competition, whichÂ beganÂ more than a year ago, aims to solve one of the worldâ€™s critical problems. The competition drew more than 1,900 applications, and eight semifinalists were selected in February.
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