PVDF Membrane (0.22 μm) is a type of pore size 0.22 μm polyvinylidene fluoride (PVDF) blotting membrane. This membrane is hydrophobic and offers a uniformly controlled pore structure with a high binding capacity for biomolecules. PVDF membrane is mainly used for immunoblotting (e.g. western blot), which can transfer proteins from various gel matrices to membranes, with higher adsorption rates for proteins with molecular weight <20 kDa.