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Updated: Oct 10, 2026

Fluorescent Silver Staining of Proteins in Polyacrylamide Gels
Published on: April 21, 2019
Rapid staining of proteins on polyacrylamide gels and nitrocellulose membranes using a mixture of fluorescent dyes
G Ganesh1, T K Kumar, S T Pandian
1Department of Chemistry, National Tsing Hua University, Hsinchu, Taiwan.
Abstract:
The present work describes a novel, fluorescence-based method for staining proteins on SDS-PAGE and membrane(s). In this method, proteins are stained using a mixed-dye (sulfo-rhodamine B and 1-anilino-8-naphthalene sulfonic acid (NH(4)(+))) solution. The mixed-dye staining protocol can detect proteins up to a concentration of 15 ng. This method is generally applicable to all proteins and is more sensitive than the conventional Coomassie blue method. The staining method is rapid and efficient. Staining-destaining of proteins using the mixed-dye protocol takes less than half an hour. Another interesting feature of the staining protocol described here is the applicability to the staining of proteins on nitrocellulose membranes.
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