A Temporary Tattoo That Lets Athletes Know When To Take A Break
University of California-San Diego researchers have created a wearable biosensor that measures lactate levels in sweat in real time. Future iterations could transmit data to a smartphone app via Bluetooth.
Kecia Lynn has worked as a technical writer, editor, software developer, arts administrator, summer camp director, and television host. A graduate of Case Western Reserve University and the Iowa Writers' Workshop, she is currently living in Iowa City and working on her first novel.
What's the Latest Development?
Joseph Wang and colleagues at the University of California-San Diego have created a biosensor that sticks onto the skin -- much like a temporary tattoo -- and measures the amount of lactate in the wearer's sweat in order to determine when they are about to "hit the wall" during vigorous exercise. It works by using an enzyme to oxidize the lactate, releasing a small amount of electrical current. The more lactate present, the larger the current. A device attached to the sensor measured the current during tests, but Wang says that in the future they hope to transmit the data wirelessly using Bluetooth.
What's the Big Idea?
Rising lactate levels are an early sign that a body's energy stores are waning, and precede the sudden fatigue often associated with hitting the wall. Often, lactate levels are measured via blood tests. A wearable biosensor that doesn't slide off during exercise is much more convenient, and tests showed that its readings were just as accurate as those taken by scraping sweat off test subjects and analyzing it in a lab.
Dogs' floppy ears may be part of why they and other domesticated animals love humans so much.
- Nearly all domestic animals share several key traits in addition to friendliness to humans, traits such as floppy ears, a spotted coat, a shorter snout, and so on.
- Researchers have been puzzled as to why these traits keep showing up in disparate species, even when they aren't being bred for those qualities. This is known as "domestication syndrome."
- Now, researchers are pointing to a group of a cells called neural crest cells as the key to understanding domestication syndrome.
Protected animals are feared to be headed for the black market.
Giving our solar system a "slap in the face."
- A stream of galactic debris is hurtling at us, pulling dark matter along with it
- It's traveling so quickly it's been described as a hurricane of dark matter
- Scientists are excited to set their particle detectors at the onslffaught
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