MIT nanotechnologists fabricated microscopic chemical sensors that can be sprayed as an aerosol to monitor pollution, detect chemical leaks, or even ingested as a medical nasal spray. Each sensor chip is 110 micrometers across, about the width of a single human hair, just 1 micrometer thick, and powered by ambient light. From Science News
Right now, researchers can determine whether their sensors have come in contact with certain particles only after the fact — by collecting the chips and hooking them up to electrodes. These electrodes test how easily electric current flows through a chip’s chemical detector, which reveals whether it touched a particular chemical after it was sprayed. But future sensors could emit light signals when in contact with target particles, says study coauthor Michael Strano, a chemical engineer at MIT....
Unlike silicon-based devices that might pose environmental or health hazards, the polymers and the minute amounts of 2-D materials used to make the new devices are expected to be more biofriendly, (says researcher Kourosh Kalantar-Zadeh).
"Colloidal nanoelectronic state machines based on 2D materials for aerosolizable electronics" (Nature Nanotechnology)
California AG office reviewing DoJ filing, “[We] look forward to defending California’s state net neutrality protections.”
U.S. Secretary of State Mike Pompeo today announced a five-part “Clean Network” effort from the Trump administration which Pompeo says is to limit potential national security risks from China.
Graham Clark, the 17-year-old Florida boy accused of pulling off the big Twitter hack, pled not guilty to charges on Tuesday. During the security breach, top accounts including Democratic presidential candidate Joe Biden and Tesla/SpaceX CEO Elon Musk were taken over to push a bitcoin scam.
If you’re a photographer, videographer, or graphic designer, you’ve got a lot of competition charging up behind you. Because while you’ve been trained as a content creator, the task of snapping brilliant images, capturing well-composed video, and posting effective social media is now part of literally everyone’s skill set. For years, Adobe and their ubiquitous […]
After years of hearing a steady drumbeat about the necessity of surfing the web under the protection of a VPN, even the most technophobic among us are starting to come around. But even knowing the dangers one can face from cybercrooks phishing for information from unsuspecting victims online, those last holdouts still have some fears. […]
You may not realize it, but some of the biggest films in movie history have been edited using the same tools some of you use to cut your video of vacationing at Disney World. Giant movies from Oscar favorites The Social Network and Gone Girl to blockbusters like Avatar, Deadpool, and last year’s Terminator: Dark […]