butters
High on a Hill
- Joined
- Jul 2, 2009
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a process that enabled scientists to view the brain development of young mice in a non-intrusive fashion.
not entirely a political post, but definitely a current events. If mice have to be experimented on, I'd far sooner they had some tartrazine-infused water rubbed on their wee little heads than have their brain pans sliced into.
not entirely a political post, but definitely a current events. If mice have to be experimented on, I'd far sooner they had some tartrazine-infused water rubbed on their wee little heads than have their brain pans sliced into.
How tartrazine changes light waves
Tartrazine absorbs blue and near-ultraviolet light. A principle of optics links absorption at one set of wavelengths to changes in refractive index at other wavelengths.
Add a dye that soaks up blue, and you can nudge water’s refractive index upward in the red and near-infrared – the wavelengths that already go deeper into tissue.
Water begins to act a little more like the fats around it, so the light scatters less and the image gets clearer.
The team first checked this in gels and thin tissue slices. The pattern held: there was less scatter where it mattered. Then they moved to live mice and applied a diluted solution to the skin.
https://www.earth.com/news/doritos-...scientists-create-mice-with-see-through-skin/To the naked eye, the area looked darker because the dye absorbs blue light. To a camera set for red or near-infrared, the patch turned more transparent for a short time.