Comb, Electrophoresis

Description (Brief)
This white plastic electrophoresis comb has 17 tines. Scientists at Genentech, a biotechnology company, made this comb themselves in the late 1970s by cutting it out of a sheet of plastic.
Electrophoresis combs are used to create the wells in gels for electrophoresis, a technique that uses the electrical charges of molecules to separate them by their length. It is often used to analyze DNA fragments. When a gel is poured, a comb is inserted. After the gel solidifies, the comb is removed, leaving wells for samples.
Currently not on view
Object Name
comb, electrophoresis
Genentech, Inc.
Physical Description
plastic (overall material)
overall: 1 1/4 in x 5 7/16 in; 3.175 cm x 13.81125 cm
United States: California, South San Francisco
ID Number
accession number
catalog number
See more items in
Medicine and Science: Biological Sciences
Science & Mathematics
Biotechnology and Genetics
Data Source
National Museum of American History, Kenneth E. Behring Center


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