US scientists made animals transparent with food coloring
Researchers at Stanford University have made a sensational discovery: applying the common food dye tartrazine to the skin of mice allows you to temporarily see their internal organs and other structures. This dye is known as FD&C Yellow 5. It helps overcome the problem of light scattering caused by protein and fatty components of the skin that make it opaque.
According to the study, tartrazine absorbs light in the near ultraviolet and blue part of the spectrum, which allows red and orange light to penetrate deeper into the tissues. The temporary transparency effect is easily reversible: just rinse off the dye.
The scientists applied the technique to the abdomens of mice, observing neurons with fluorescent markers in real time. The dye was also applied to the skulls of the mice, allowing them to see the workings of brain blood vessels, and to the hind limbs, making the musculature visible.
This discovery could greatly improve understanding of digestive problems. The researchers anticipate a significant increase in imaging depth, which could lead to new advances in biomedical research, including multiphoton imaging of the mouse brain and detection of tumors under centimeter-thick tissue without surgery.
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At the annual meeting of the European Association for the Study of Diabetes 2024 in Madrid, the results of clinical trials of the new insulin efsitor, which is administered once a week, were presented. The tests showed that the new drug is as effective as degludec, which is administered daily.
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Neuralink's Revolutionary Technology: A New Era of Vision for the Blind
Neuralink has created a technology that will allow people who have lost their eyes to see, as well as those who are blind from birth (but with a healthy visual cortex).
In the first stages, such “vision” will have a low resolution, like Atari's 8-bit graphics, but gradually it will “surpass natural vision” and even allow people to see in infrared, ultraviolet or radar, Musk promises.
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