Why it matters to you Contact lenses embedded with biosensors may help patients monitor their conditions and even detect diseases early on.
In the future, your contacts lenses may do more than help you see clearly — they may help save your life.
Engineers at Oregon State University are working to embed transparent sensors into contact lenses, which could then monitor biomarkers to track drug use, blood glucose levels, or even detect early signs of cancer.
“My group had been working on a different technology for glucose sensing … which is similar to what is used for glucose test strips,” Greg Herman, a chemical engineer who is leading the research, told Digital Trends. “On a separate project, we were working on transistors that can be transparent. It came to me that we could modify the transistor to be a sensor and make it fully transparent.” The step from conception to creation came quickly, he added.
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In order to design the biosensors, Herman referred to indium gallium zinc oxide (IGZO), a compound he invented with some colleagues years ago while working in industry. IGZO has already revolutionized touchscreen sensitivity.
Instead of offering consumers higher resolution devices, Herman’s new use for IGZO enables continuous glucose monitoring by carrying an enzyme that reacts with glucose to change the lenses conductivity and signal a patient’s glucose level.
“The thought with the contact lens is that it will give diabetic patients more flexibility in managing their glucose levels,” he said.
Over 2,500 different biosensors could theoretically be embedded in a 1mm square of these contact lenses, according to Herman, detecting things like uric acid levels and cancer biomarkers. However, such a device is still some years off.
“We are still in the early stages, and it is difficult to say how long it will be before they are available commercially,” he said. “We have talked to a couple companies, and are hoping to work with them to accelerate the technology.”
Herman presented his research this week at a meeting of the American Chemical Society.
whenoverwhelmedrun on April 8th, 2017 at 16:46 UTC »
I am sick of this articles. Let me know what is invented on a daily basis these days, let me know about real stuff. Not shitty predictions that are just in idea phase.
sweatyfish on April 8th, 2017 at 16:04 UTC »
As a -9 in one eye, I'd just be happy if they could get me to 20/20...
Wyndove419 on April 8th, 2017 at 15:53 UTC »
Monitoring drug use in that fashion is something I vehemently disagree with. That's like 1984 on steroids. I get that it's intended for medical use, but I have no doubt it will track pupil dilation from MDMA/meth or hallucinogens and pupil constriction from opioids. Then keep that on file somewhere and your insurance premium goes through the roof. Edit: Don't bother replying to this post if you're going to spout some ignorant bullshit about drug users deserving to pay more insurance for "destroying their bodies" do some god damn research into LSD and psilocybe and you will see how little physical effects they have on the body. Alcohol is one of the only two drugs with withdrawals that can kill you. Alcohol destroys your liver faster than heroin.