density-gradient technique

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• Density gradient — is a spatial variation in density over an area. The term is used in the natural sciences to describe varying density of matter, but can apply to any quantity whose density can be measured. [1] [2] Contents 1 Aerodynamics 2 …   Wikipedia

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• Sucrose gradient centrifugation — is a type of centrifugation often used to purify enveloped viruses (with densities 1.1 1.2 g/cm³) and ribosomes, and also to separate cell organelles from crude cellular extracts. This method is also used to purify exosomes. [cite journal |… …   Wikipedia

• Céramique technique — La céramique technique est une branche de la céramique dédiée aux applications industrielles, par opposition aux créations artisanales (poterie) ou artistiques (céramique d art) ou porcelaine. L objectif de cette industrie est la création et l… …   Wikipédia en Français

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• Protein purification — is a series of processes intended to isolate a single type of protein from a complex mixture. Protein purification is vital for the characterisation of the function, structure and interactions of the protein of interest. The starting material is… …   Wikipedia

• Sediment Profile Imagery — (SPI) is an underwater technique for photographing the interface between the seabed and the overlying water. The technique is used to measure or estimate biological, chemical, and physical processes occurring in the first few centimetres of… …   Wikipedia

• Isopycnic centrifugation — Isopycnic centrifugation, also known as density gradient centrifugation or equilibrium sedimentation is a technique used to separate molecules on the basis of buoyant density. (The word isopycnic means equal density .) Typically, a self… …   Wikipedia

• centrifuge — centrifugation /sen trif yeuh gay sheuhn, trif euh /, n. /sen treuh fyoohj /, n., v., centrifuged, centrifuging. n. 1. an apparatus that rotates at high speed and by centrifugal force separates substances of different densities, as milk and cream …   Universalium

• Isopycnic — Viruses purified by isopycnic centrifugation a density gradient was formed during high speed centrifugation of a solution of caesium chloride and the two virus types come to rest at points corresponding to their density. The tube is about 10cm… …   Wikipedia