this post was submitted on 07 Sep 2024
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Researchers say procedure not yet tested on people could eventually be used to help locate injuries or tumours

Researchers have peered into the brains and bodies of living animals after discovering that a common food dye can make skin, muscle and connective tissues temporarily transparent.

Applying the dye to the belly of a mouse made its liver, intestines and bladder clearly visible through the abdominal skin, while smearing it on the rodent’s scalp allowed scientists to see blood vessels in the animal’s brain.

Treated skin regained its normal colour when the dye was washed off, according to researchers at Stanford University, who believe the procedure opens up a host of applications in humans, from locating injuries and finding veins for drawing blood to monitoring digestive disorders and spotting tumours.

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[–] SpacePirate@lemmy.ml 47 points 1 week ago (2 children)

To red light, and only to the depth the dye penetrates, not yet tested on humans or below the surface of the skin.

[–] Drusas@fedia.io 24 points 1 week ago (2 children)

Great. Maybe my doctors could see what the fuck is wrong with me.

[–] Empricorn@feddit.nl 4 points 1 week ago

But can they see why kids love Cinnamon Toast Crunch!?

[–] fuckingkangaroos@lemm.ee 3 points 1 week ago (1 children)

"Yeah so just, ya know, smear that crap all over my head and let's figure this out"

[–] nomous@lemmy.world 4 points 1 week ago (1 children)

"We've decided the problem is you."

[–] Drusas@fedia.io 2 points 1 week ago

I'm female. The problem will be in my head.

[–] noride@lemm.ee 24 points 1 week ago (2 children)

Any bets on how long it takes before this becomes a fetish?

[–] girlfreddy@lemmy.ca 9 points 1 week ago
[–] kn33@lemmy.world 3 points 1 week ago

It has been for a while, just without the technology to back it up

[–] dditty@lemm.ee 16 points 1 week ago (1 children)

The dye in question is tartrazine/Yellow 5

[–] Monument@lemmy.sdf.org 7 points 1 week ago

I like to look up stuff, even if I’m not remotely qualified to understand the results.

Tartrazine induces structural and functional aberrations and genotoxic effects in vivo
Is tartrazine really safe? In silico and ex vivo toxicological studies in human leukocytes: a question of dose

My (thin) grasp of things is that even though it’s a food additive, it’s not heavily studied, and not at higher doses, but the two studies above don’t paint a great picture. And slathering it on your skin is definitely more than you’d come into contact with than what’s needed to color food.
So, yeah - not a parlor trick I’d do to gross out my friends.

[–] Wutchilli@feddit.org 12 points 1 week ago

Time for my twoface cosplay

Doritos would be way cooler if they turned your finger tips transparent

[–] CitizenKong@lemmy.world 8 points 1 week ago

Looking forward to the halloween pranks...

[–] teft@lemmy.world 6 points 1 week ago

I'm going to look like Slim Goodbody on nights and weekends.

[–] x00za@lemmy.dbzer0.com 4 points 1 week ago

Tartrazine is a synthetic lemon yellow azo dye primarily used as a food coloring. It is also known as E number E102, C.I. 19140, FD&C Yellow 5, Yellow 5 Lake, Acid Yellow 23, Food Yellow 4, and trisodium 1--4--5-pyrazolone-3-carboxylate. Tartrazine is a commonly used coloring agent all over the world, mainly for yellow, and can also be used with brilliant blue FCF or green S to produce various green shades.

[–] dan1101@lemm.ee 4 points 1 week ago

This is going to be the sort of thing if you use it four or five times your skin melts off.