US Patent 11932838 Cell culture media extending materials and methods

This disclosure provides a cell culture media extending material capable of releasing nutrients into the cell culture environment slowly overtime. In embodiments, this material is a part of a cell culture vessel. In embodiments, the material is a coating or a film on a surface of a cell culture material. In additional embodiments, the material is a surface upon which cells are cultured, such as a cell culture vessel or a microcarrier.