Permeable supports are available with three materials of construction:
Transwell® Permeable Supports are available in a broad range of pore sizes from 0.4 to 8.0 μm. This high pore density membrane is suitable for a variety of applications. It allows for maximum diffusion when studying transport, secretions, or drug uptake.
Collagen-coated PTFE membranes are available in limited pore sizes (0.4 and 3.0 μm). These coated membranes promote cell attachment and allow cells to be visualized during culture.