You want to use special plates, microcarriers, or scaffolds for cell expansion. You want to start the development and/or optimization of your protocols for the 3D-culture of a complex cell type. You want to expand your portfolio by customizing your device to the needs of different cell types. You have an unconventional device whose full potential could be explored by a change in surface properties. You want to harness the knowledge of a team of cell biology and biomaterial experts.