Researchers at UT Dallas, led by Dr. Zihao Ou, have developed a groundbreaking technique using tartrazine, a common food dye, to make live mouse skin transparent. This innovative method enhances the visibility of blood vessels and organs, enabling real-time observation of biological processes. By altering the tissue's refractive index, the technique offers potential for non-invasive medical diagnostics and deeper understanding of diseases. While still in early stages for human application, it holds promise for advanced imaging, drug delivery, and less intrusive procedures.