Why Biopolymer Microgels with Dynamically Switchable Properties Would be a Great Tool‐Box for the Cultivation of Stem Cells

In this short perspective article, it is asked why – different from their macroscopic bulk counterparts – biopolymer‐based microgels with dynamically switchable mechanical properties are basically non‐existent. The article pinpoints why such dynamic control over the viscoelasticity of microgels would be desirable for the encapsulation of stem cells, how switchable mechanical properties may be achievable in biopolymer‐based microgel systems, and what pitfalls and issues need to be addressed to realize such a complex, engineered microenvironment for cells.