Summary:
- This article discusses the development of a new technology called "Optogenetic Microtissues" that can be used to control and monitor the behavior of cells in the body.
- The technology uses light-sensitive proteins called "opsins" that can be genetically engineered into cells, allowing researchers to control the cells' activities using light.
- This technology has potential applications in fields like regenerative medicine, where it could be used to guide the growth and behavior of stem cells and other cell types to repair damaged tissues.