DNA Electrophoresis

We offer a broad selection of DNA ladders to support your everyday research needs. Our ladders support fragment sizes from 10 bp to 48.5 kb and provide accurate analysis of double-stranded DNA in agarose or polyacrylamide gels. Thermo Scientific DNA ladders are manufactured and quality controlled to exceed industry standards. Our most popular ladders are Thermo Scientific GeneRuler DNA Ladders. Learn more about our full offering of DNA ladders, including those designed for fast separation, step ladders for more accurate sizing, and custom ladder preparations.

Learn more about the family of Thermo Scientific DNA Ladders

Loading dyes are essential for the preparation of DNA ladders, markers, and samples for loading on agarose or polyacrylamide gels. Depending on your DNA fragment of interest you can chose between different dyes that prevent DNA masking during gel exposure to UV light.

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Thermo Scientific agarose

Agarose is a nontoxic polysaccharide extracted from seaweed. It is easy to use and relatively inexpensive. For DNA and RNA electrophoresis, high-quality agarose is needed to obtain sharp bands. Thermo Scientific TopVision Agarose is available in powder (standard and low melting point) as well as convenient and easy-to-use tablet formats.

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The electrophoretic mobility of DNA molecules depends on the applied voltage as well as the composition of the electrophoresis buffer. Thermo Scientific offers Tris-borate-EDTA (TBE) and Tris-acetate-EDTA (TAE) buffers for everyday electrophoresis.

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