ultracentrifuge

The homogenised sample is now ready for centrifugation in an ultracentrifuge.

There are two kinds of ultracentrifuges, the preparative and the analytical ultracentrifuge.

On his return from England Both created an ultracentrifuge for isolating very fine viruses.

It is a Herculean task and an ultracentrifuge is undoubtedly a mechanical miracle.

Beams was awarded the National Medal of Science in 1967 for his work on the ultracentrifuge.

A protein sample is then layered on top of the gradient and spun at high speeds in an ultracentrifuge.

M is obtained from viscosimetry and M by sedimentation in an analytical ultracentrifuge.

Stand alone centrifuges (heavy devices like the ultracentrifuge)

The bacteria were cultivated while being rotated in an ultracentrifuge at high speeds corresponding to 403,627 times "g" (the normal acceleration due to gravity).

The vacuum ultracentrifuge was invented by Edward Greydon Pickels.

Ribosomal components are commonly designated by their "S values," which refer to their rate of sedimentation in an ultracentrifuge.

In 1949, Spinco introduced the Model L, the first preparative ultracentrifuge to reach a maximum speed of 40,000 rpm.

In order to investigate this phenomenon, a centrifuge with even higher speeds was needed, and thus the ultracentrifuge was created to apply the theory of sedimentation-diffusion.

An ultracentrifuge consists of a refrigerated, low-pressure chamber containing a rotor which is driven by an electrical motor capable of high speed rotation.

American scientist Jesse Beams and his team at the University of Virginia developed the process by separating two chlorine isotopes through a vacuum ultracentrifuge.

The aqueous portion of the extraction was layered onto a cushion of 5.7 M CsCl in ultracentrifuge tubes.

The tremendous rotational kinetic energy of the rotor in an operating ultracentrifuge makes the catastrophic failure of a spinning rotor a serious concern.

In 1946, Pickels cofounded Spinco (Specialized Instruments Corp.) and marketed an ultracentrifuge based on his design.

In the autumn of 1941, Groth, Harteck, and Albert Suhr began the construction of an ultracentrifuge for the enrichment of uranium-235.

Under his supervision Wilhelm Groth conducted the last enrichment experiments with the ultracentrifuge in Celle, a small town 120 km south of Hamburg.

The lysate was transferred to a TLS55 ultracentrifuge tube, over-layered sequentially with 30% and 5% sucrose in TENV.

In chemistry, sedimentation has been used to measure the size of large molecules (macromolecule), where the force of gravity is augmented with centrifugal force in an ultracentrifuge.

The work went slowly, but shortly before the end of the war he had designed an ultracentrifuge (to spin at 60,000 rpm) which he was hopeful would achieve the required results.

During World War II, he worked on the Manhattan Project, where his ultracentrifuge was used to demonstrate the separation of the uranium isotope U-235 from other isotopes.

The ultracentrifuge is a centrifuge optimized for spinning a rotor at very high speeds, capable of generating acceleration as high as 2 000 000 G (approx 19 600 km/s2).