Soft, flexible hydrogels have enabled significant advancements in engineering biological tissue by mimicking the natural scaffolding that provides structure and support to cells. Existing engineered hydrogels, however, fall short in a significant way. Unlike in nature, they do not have the dynamic ability to change their structure or support depending on what the biological tissue needs. The answer may rest in shining a light on the problem—literally, according to a team led by researchers at Yokohama National University.

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