How Scientists Are Using Diaper Technology to Study Brains

The video explores the limitations of traditional light microscopy and introduces expansion microscopy as a solution to visualize smaller biological structures. It explains how sodium polyacrylate, a chemical found in diapers, is used to expand tissue samples, allowing scientists to overcome the Abe diffraction limit. The process involves fixing tissues, adding fluorescent molecules, and expanding them with water. Expansion microscopy is cost-effective and applicable to various biological samples, though it has limitations like the need for specialized molecules and the fragility of expanded samples.

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