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Equipment designed to transfer nucleic acid (DNA or RNA) and/or protein samples typically from an agarose gel onto a membrane (e.g., nylon, nitrocellulose, polyvinylidene difluoride-PVNF ) or less frequently to a filter or treated paper (i.e., blotting) after a gel electrophoresis procedure, a procedure that separates the molecules according to the charge and size. The transfer is usually performed using an electric gradient process; some systems use a vacuum capillary transfer process or less frequently a diffusion transfer. IVD blotters are intended to provide in an immobilized matrix an identical copy of the electrophoretic pattern present in the gel allowing the performance of a wide range of analytical procedures.
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