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Engineers print wearable sensors directly on skin without heat
TechExplore ^ | 10/09/2020 | Ashley J. Wennersherron, Pennsylvania State University

Posted on 10/10/2020 3:30:02 PM PDT by BenLurkin

Wearable sensors are evolving from watches and electrodes to bendable devices that provide far more precise biometric measurements and comfort for users. Now, an international team of researchers has taken the evolution one step further by printing sensors directly on human skin without the use of heat.

Led by Huanyu "Larry" Cheng, Dorothy Quiggle Career Development Professor in the Penn State Department of Engineering Science and Mechanics, the team published their results in ACS Applied Materials & Interfaces.

Cheng and his colleagues previously developed flexible printed circuit boards for use in wearable sensors, but printing directly on skin has been hindered by the bonding process for the metallic components in the sensor. Called sintering, this process typically requires temperatures of around 572 degrees Fahrenheit—300 degrees Celsius—to bond the sensor's silver nanoparticles together.

"To get around this limitation, we proposed a sintering aid layer—something that would not hurt the skin and could help the material sinter together at a lower temperature."

By adding a nanoparticle to the mix, the silver particles sinter at a lower temperature of about 212 F (100 C).

The room temperature sintering aid layer consists of polyvinyl alcohol paste—the main ingredient in peelable face masks—and calcium carbonate—which comprises eggshells. The layer reduces printing surface roughness and allows for an ultrathin layer of metal patterns that can bend and fold while maintaining electromechanical capabilities. When the sensor is printed, the researchers use an air blower, such as a hair dryer set on cool, to remove the water that is used as a solvent in the ink.

The sensor remains robust in tepid water for a few days, but a hot shower will easily remove it.

(Excerpt) Read more at techxplore.com ...


TOPICS: Science
KEYWORDS: engineers; pennstate; science; sensor; skin

1 posted on 10/10/2020 3:30:02 PM PDT by BenLurkin
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To: BenLurkin

Oh, this has absolutely NO Mark Of The Beast stuff going on. NO NO NO!


2 posted on 10/10/2020 3:31:40 PM PDT by Lazamataz (The NYT commits acts of violence with their words.)
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To: Lazamataz

Is there an End Times ping list?


3 posted on 10/10/2020 3:48:58 PM PDT by madison10
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To: BenLurkin

What SKIN ?

Article fails to say what area of your skin gets this neat little sensor.

My first thoughts were an elbow or knee or finger but those areas would probably have no need of measuring anything .... then I of course thought of my nether parts.

At 70, my wife would probably like an alarm to ring if there was anything worth paying attention to.

Article is vague but thx for the post.


4 posted on 10/10/2020 3:48:59 PM PDT by jcon40 (The other post before yours really nails it for me. IOr keep people from / PC ing in ver and alway)
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To: Lazamataz

LOL. I wonder if folks thought the first pacemaker was “the mark of the beast”? Implanted blood pressure sensors and defibrillators? Is Rush Limbaugh’s cochlear implant satanic?!? Everything new is the mark of the beast, or proof of the end times.


5 posted on 10/10/2020 4:00:27 PM PDT by ETCM
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To: jcon40

6 posted on 10/10/2020 4:06:25 PM PDT by Spirit of Liberty (It's morning in America again!)
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To: Spirit of Liberty

Well there you go. Huh. Missed the picture. Not the first time. Thx.


7 posted on 10/10/2020 4:14:23 PM PDT by jcon40 (The other post before yours really nails it for me. IOr keep people from / PC ing in ver and alway)
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To: BenLurkin

Don’t sinter my skin, bro!


8 posted on 10/10/2020 4:16:13 PM PDT by TigersEye (In all things ... trigger discipline.)
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To: Lazamataz

If the mark of the beast washes off in warm water, that is a pretty wimpy beast.


9 posted on 10/10/2020 4:18:41 PM PDT by CurlyDave
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To: BenLurkin

Get yer vaccine tattoo, tracking device, amazon alexa, and credit card all in one.


10 posted on 10/10/2020 4:20:53 PM PDT by dynachrome (The panic will end, the tyranny will not)
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To: CurlyDave

The Mark Of The Wimpy Beast.


11 posted on 10/10/2020 4:25:24 PM PDT by Lazamataz (The NYT commits acts of violence with their words.)
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To: BenLurkin

By adding a nanoparticle to the mix, the silver particles sinter at a lower temperature of about 212 F is tepid? Water boils at sea level at 211F

So you get have to have 3rd degree burns?


12 posted on 10/10/2020 5:15:55 PM PDT by PIF (They came for me and mine ... now its your turn)
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To: ETCM

Don’t they now have an injected monitor for blood sugars levels?

Had gestational diabetes. Sticking my finger 10 times a day. Ugh. Luckily it didn’t stick around.

But if it did, I would have went for a monitor.


13 posted on 10/10/2020 5:39:07 PM PDT by lizma2
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To: BenLurkin

No thanks


14 posted on 10/10/2020 5:46:52 PM PDT by Secret Agent Man (Gone Galt; Not Averse to Going Bronson.)
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To: lizma2

Don’t they now have an injected monitor for blood sugars levels?

Had gestational diabetes. Sticking my finger 10 times a day. Ugh. Luckily it didn’t stick around.

But if it did, I would have went for a monitor.
........................................................

One prick of a small needle twice a month in the back of my arm, above the elbow, as opposed to 150 to 200 finger pricks per month.

You betcha, I wear a sensor.


15 posted on 10/11/2020 12:43:33 AM PDT by Graybeard58 (Born after V.E. day but before V.J. day but I did co pilot the Enola Gay.)
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To: BenLurkin

A minister, a rabbi and a priest sinter up to a bar...


16 posted on 10/11/2020 2:44:28 PM PDT by Albion Wilde ("When you open your heart to patriotism, there is no room for prejudice." --Donald Trump)
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To: jcon40

It seems more like either sensors for medical measurements, like body temperature, blood oxygen content or pulse, or to detect and send out nerve impulses for prosthetic limbs. It doesn’t help that the pick-up shown looks more like the make-up for Seven of Nine than anything normal people would actually wear.


17 posted on 10/11/2020 3:58:32 PM PDT by jmcenanly ("The more corrupt the state, the more laws." Tacitus, Publius Cornelius)
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