Ultracentrifuge
Ultracentrifuge is a type of centrifuge that has been designed to rotate at extremely high speeds. These devices are commonly used in the field of biochemistry for isolating and purifying biomolecules, including proteins, nucleic acids, and lipids. Ultracentrifuges can achieve rotational speeds of up to 1,000,000 g.
History[edit | edit source]
The ultracentrifuge was invented by Theodor Svedberg in 1925. Svedberg's invention was a significant advancement in the field of biochemistry, as it allowed for the separation of different types of biomolecules based on their size and density. The first commercial ultracentrifuges were produced by the Beckman Coulter company in the 1940s.
Design and operation[edit | edit source]
Ultracentrifuges are designed to withstand the extreme forces generated by high-speed rotation. They are typically made of strong materials such as steel or titanium, and are equipped with safety features to prevent accidents. The sample to be centrifuged is placed in a rotor, which is then placed in the ultracentrifuge. The rotor is spun at high speed, causing the components of the sample to separate based on their size and density.
Applications[edit | edit source]
Ultracentrifuges are used in a variety of scientific research and industrial applications. In biochemistry, they are used to isolate and purify biomolecules for further study. In molecular biology, they are used to separate DNA and RNA molecules based on their size. In virology, they are used to purify viruses for research or vaccine production. Ultracentrifuges are also used in the production of nanoparticles and in the study of macromolecules.
See also[edit | edit source]
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