I am using Collagen IV for coating cell culture plate for differentiation of embryonic stem cells into hematopoietic progenitors. Is there a way to check if the plates are fully coated or if the collagen is not denatured?
may be you can check the plate surface under stereomicroscope and compare with non-coated plate, that may be useful. Second you may put some ink on the surface of coated vs non-coated surface and wash both of them very well, you may watch both under stereo microscope. Ink should not show up in non-coated plate.