Counterion-dye staining method for DNA in agarose gels using crystal violet and methyl orange. Yang, Y, Jung, D W, Bai, D G, Yoo, G S, & Choi, J K Electrophoresis, 22(5):855–9, March, 2001. ![Counterion-dye staining method for DNA in agarose gels using crystal violet and methyl orange. [link]](https://bibbase.org/img/filetypes/link.svg "link")
Paper doi abstract bibtex Sensitive and safe methods for visualization of DNA in agarose gels are described. 0.001% crystal violet dissolved in distilled water was used for DNA staining on agarose gels and it could detect as little as 16 ng of DNA (3 kb, pGem-7Zf/EcoRI) without destaining procedure. The detection limit is four times lower than that of ethidium bromide. To improve the sensitivity, we studied a counterion-dye staining method using methyl orange as a counterion-dye which contributes to reduce excessive background staining by crystal violet. Dye concentration, pH of staining solution, mixing molar ratio of two dyes, and staining times were optimized for the counterion-dye staining. By the staining with a mixed solution of 0.0025% crystal violet and 0.0005% methyl orange in distilled water, 8 ng of the 3 kb DNA in an agarose gel was detected within 30 min.
@article{Yang2001,
title = {Counterion-dye staining method for {DNA} in agarose gels using crystal violet and methyl orange.},
volume = {22},
issn = {0173-0835},
url = {http://www.ncbi.nlm.nih.gov/pubmed/11332752},
doi = {10.1002/1522-2683()22:5<855::AID-ELPS855>3.0.CO;2-Y},
abstract = {Sensitive and safe methods for visualization of DNA in agarose gels are described. 0.001\% crystal violet dissolved in distilled water was used for DNA staining on agarose gels and it could detect as little as 16 ng of DNA (3 kb, pGem-7Zf/EcoRI) without destaining procedure. The detection limit is four times lower than that of ethidium bromide. To improve the sensitivity, we studied a counterion-dye staining method using methyl orange as a counterion-dye which contributes to reduce excessive background staining by crystal violet. Dye concentration, pH of staining solution, mixing molar ratio of two dyes, and staining times were optimized for the counterion-dye staining. By the staining with a mixed solution of 0.0025\% crystal violet and 0.0005\% methyl orange in distilled water, 8 ng of the 3 kb DNA in an agarose gel was detected within 30 min.},
number = {5},
journal = {Electrophoresis},
author = {Yang, Y and Jung, D W and Bai, D G and Yoo, G S and Choi, J K},
month = mar,
year = {2001},
pmid = {11332752},
keywords = {\#nosource, Agar Gel, Azo Compounds, DNA, DNA: analysis, Electrophoresis, Ethidium, Gentian Violet, Hydrogen-Ion Concentration, Indicators and Reagents, Sensitivity and Specificity, Solutions, Staining and Labeling, Staining and Labeling: methods, Water},
pages = {855--9},
}
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To improve the sensitivity, we studied a counterion-dye staining method using methyl orange as a counterion-dye which contributes to reduce excessive background staining by crystal violet. Dye concentration, pH of staining solution, mixing molar ratio of two dyes, and staining times were optimized for the counterion-dye staining. 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