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Polyacrylamide Gel Electrophoresis (PAGE) Acrylamide gels serve as a size-selective sieve during separation. As proteins move through a gel in response to an electric field, the smaller molecules travel more rapidly than larger proteins (see
Visual detection of cocaine was performed using a DNA modified linear polyacrylamide polymer, which was crosslinked with a cocaine aptamer and loaded with Au-NPs. In presence of cocaine, the hydrogel dissolves and Au-NPs are released in
