Nav: Home

Wireless, battery-free sensors monitor skin exposure to solar radiation

December 05, 2018

Researchers have created wireless, battery-free sensors that can monitor exposure to solar radiation in real time. Their miniature devices provide a portable and flexible method to track light exposure that could prove useful in monitoring doses of ultraviolet (UV) radiation during outdoor activities and optimizing light-based treatments for skin conditions. High exposure to UV light can lead to an increased risk of melanoma and other skin cancers, which together cost over $8.1 billion a year in the U.S. and are projected to reach "epidemic proportions" in the country. Light exposure can also be therapeutic, however: the use of blue light therapy has become a standard-of-care treatment for infants with jaundice - a liver condition that affects 50% to 60% of preterm infants. Existing UV monitoring devices suffer from various drawbacks such as limited battery life, which has hindered their broader use. To overcome these obstacles, Seung Yun Heo and colleagues created a low-cost technology that consists of flexible, adherent sensors that can monitor various forms of radiation. It features a "system on a chip" design, allowing wireless, smartphone-based access to an individual's sensor-read solar exposure data. Healthy volunteers wore the sensors during outdoor recreational activities (including walking and swimming) over a four-day period, and the authors observed that the devices remained functional and reliably recorded UVA solar radiation doses. What's more, the sensors were fabricated in different shapes and sizes, and could capture UVA and UVB exposure for clinical phototherapy. They also successfully monitored light exposure in infants undergoing blue light therapy for jaundice. Heo et al. say that the sensors even remained functional after a cycle through a washing machine.
-end-


American Association for the Advancement of Science

Related Radiation Articles:

Cloudy with a chance of radiation: NASA studies simulated radiation
NASA's Human Research Program (HRP) is simulating space radiation on Earth following upgrades to the NASA Space Radiation Laboratory (NSRL) at the US Department of Energy's Brookhaven National Laboratory.
Visualizing nuclear radiation
Extraordinary decontamination efforts are underway in areas affected by the 2011 nuclear accidents in Japan.
Measuring radiation damage on the fly
Researchers at MIT and elsewhere have found a new way to measure radiation damage in materials, quickly, cheaply and continuously, using transient grating spectroscopy.
Radiation that knocks electrons out and down, one after another
Researchers at Japan's Tohoku University are investigating novel ways by which electrons are knocked out of matter.
Novel advancements in radiation tolerance of HEMTs
When it comes to putting technology in space, size and mass are prime considerations.
Radiation-guided nanoparticles zero in on metastatic cancer
Zap a tumor with radiation to trigger expression of a molecule, then attack that molecule with a drug-loaded nanoparticle.
Graphene is both transparent and opaque to radiation
A microchip that filters out unwanted radiation with the help of graphene has been developed by scientists from the EPFL and tested by researchers of the University of Geneva (UNIGE).
Radiation causes blindness in wild animals in Chernobyl
This year marks 30 years since the Chernobyl nuclear accident.
No proof that radiation from X rays and CT scans causes cancer
The widespread belief that radiation from X rays, CT scans and other medical imaging can cause cancer is based on an unproven, decades-old theoretical model, according to a study published in the American Journal of Clinical Oncology.
Some radiation okay for expectant mother and fetus
During pregnancy, approximately 5 to 8 percent of women sustain traumatic injuries, including fractures and muscle tears.

Related Radiation Reading:

Best Science Podcasts 2019

We have hand picked the best science podcasts for 2019. Sit back and enjoy new science podcasts updated daily from your favorite science news services and scientists.
Now Playing: TED Radio Hour

Climate Crisis
There's no greater threat to humanity than climate change. What can we do to stop the worst consequences? This hour, TED speakers explore how we can save our planet and whether we can do it in time. Guests include climate activist Greta Thunberg, chemical engineer Jennifer Wilcox, research scientist Sean Davis, food innovator Bruce Friedrich, and psychologist Per Espen Stoknes.
Now Playing: Science for the People

#527 Honey I CRISPR'd the Kids
This week we're coming to you from Awesome Con in Washington, D.C. There, host Bethany Brookshire led a panel of three amazing guests to talk about the promise and perils of CRISPR, and what happens now that CRISPR babies have (maybe?) been born. Featuring science writer Tina Saey, molecular biologist Anne Simon, and bioethicist Alan Regenberg. A Nobel Prize winner argues banning CRISPR babies won’t work Geneticists push for a 5-year global ban on gene-edited babies A CRISPR spin-off causes unintended typos in DNA News of the first gene-edited babies ignited a firestorm The researcher who created CRISPR twins defends...