Have you ever wished you could have a material that could change its properties based on the environment around it? Well, scientists have been working on this concept for years and have finally made progress with the development of “smart materials”. One such material is a type of photochromic colloid, which is a material whose properties can be altered by light. These colloids are made up of tiny particles that are suspended in a liquid or gas, and when exposed to certain wavelengths of light, they change shape, color, or other physical properties. This makes them incredibly useful in a variety of applications, from medical devices to solar cells and more. The possibilities for this type of “smart material” are endless!

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source: Phys.org