ultracentrifugation


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ultracentrifugation

 [ul″trah-sen-trif″u-ga´shun]
subjection of material to an exceedingly high centrifugal force, which will separate and sediment the molecules of a substance.

ul·tra·cen·tri·fu·ga·tion

(ŭl'tră-sen'tri-fyū-gā'shŭn),
The process of subjection to an ultracentrifuge.

ultracentrifugation

/ul·tra·cen·trif·u·ga·tion/ (ul″trah-sen-trif″u-ga´shun) subjection of material to an exceedingly high centrifugal force, which will separate and sediment the molecules of a substance.

ultracentrifugation

subjection of material to an exceedingly high centrifugal force, which will separate and sediment the molecules of a substance or subcellular components.
References in periodicals archive ?
As with the ultracentrifugation hemocyanin samples, 3 separate protein subunits eluted at 26.
6 mEq/L (mmol/L) using LipoClear, compared with ultracentrifugation (Figure 1, A and B).
After ultracentrifugation, samples were removed in 1-ml aliquots, starting from the top of the ultracentrifugation tube, and quantified at 260 nm.
In contrast to the time consuming ultracentrifugation with repeated CsCl-gradients (5,6,7) the presented method for cleaning and concentration of Ad-vectors was performed within 2-4 h with high yields.
The authors express their gratitude to Ralph Albrecht and Joe Heins for performing the particle size analysis by TEM and the Ultracentrifugation of the colloidal silver preparation; Janice Jeromin RN for scheduling and performing the veinipuncture; and Regina Jauregui for typing the manuscript.
The different lipoprotein particles were discovered by ultracentrifugation in which heavier LP's traveled farther in a glucose gradient than did lighter LP's.
Lipid rafts from HSG cells and mouse salivary gland tissues, were isolated using discontinuous sucrose density gradient ultracentrifugation method.
Rapid isolation of low density lipoprotein (LDL) subfractions from plasma by density gradient ultracentrifugation.
Plasma, either spiked with PbTx-3 or from mice treated for 30 min with PbTx-3, was fractionated into different-sized lipoproteins by iodixanol gradient ultracentrifugation.
Alfa Wasserman introduced the FOCUS Proteomics Separation System based on proteomics continuous-flow ultracentrifugation (pCFU).
Continuing about surprises, Rouse mentions the epistemic things disclosed by ultracentrifugation of sarcoma cells which led Albert Claude at the Rockefeller Institute to undertake greater normative accountability in 1938 by shifting from oncology to cytology, exemplified by microsomes, which later, in 1945, Keith Porter showed with his EM to be fragments of the endoplasmic reticulum, the lamellar system studded with ribosomes crucial to protein biosynthesis stipulated by the genetic code.
Using ultracentrifugation, we divided the milk into fractions and then identified the iron uptake characteristics of each fraction with cultures of human intestinal epithelial cells," says Glahn.