摘要 |
Embodiments described herein relate to in vitro cell culture. Embodiments include a substrate having a support layer that includes support molecules having a first region configured to bind to the substrate and having a photo-responsive region configured to change conformation between at least two conformations. In a first conformation of the photo-responsive region, the support molecules are configured to be more accessible to cells. In a second conformation of the photo-responsive region, the support molecules are configured to be less accessible to cells.
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