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  • Equipment designed to transfer nucleic acids (DNA or RNA) typically from an agarose gel onto a membrane (e.g., nylon, nitrocellulose, polyvinylidene difluoride-PDVF ) 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 nucleic acid 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. Nucleic acid blotters are used in tests usually known as southern or northern blots, for DNA and RNA respectively.
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