Meselson, Stahl and Vinograd 1 first described the equilibrium density gradient technique for the examination of DNA in the analytical ultracentrifuge, and the technique has since been used to ...

Isolation of viable mononuclear and polymorphonuclear cells from blood serves as the starting point for a wide spectrum of immunology and cell biology studies. Unlike red blood cells and platelets, ...

A new UBC study published recently in Proceedings of the National Academy of Science (PNAS) has unveiled insights into how microscopic organisms such as marine plankton move through water with ...

This paper presents an estimate of the Vancouver metropolitan area's density profile to show the presence of density gradient inversions. A number of explanations for the inversions are offered and ...

Enrichment of leukocytes from blood products like buffy coat, leukocyte reduction chambers (LRSC) or leukapheresis material can be time consuming and could influence the physiology of the target cells ...

Beckman Coulter Life Sciences, a Danaher company and a global leader in laboratory automation and innovation, announces the launch of the OptiMATE Gradient Maker, a groundbreaking instrument designed ...

Supernatant fluids from cultures of a mouse mammary tumor (MT) cell line were found to produce a specific cell detachment effect when inoculated into HeLa cells. The cell detachment factor (CDF) ...

It is tempting to think that some materials are always heavier than other materials. For example, someone might say that metal is heavier than air. But it depends on how much of each material there is ...