Definition & Meaning | English word DEXTRAN

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Definitions of DEXTRAN

1. (carbohydrate) A biopolymer of glucose produced by enzymes of certain bacteria; used as a substitute for blood plasma, and as a stationary phase in chromatography.

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Examples of Using DEXTRAN in a Sentence

• During World War II, Swedish chemist Björn Ingelman (who worked for Arne Tiselius at Uppsala university) researched various uses for the polysaccharide dextran.
• mutans produces dextran via the enzyme dextransucrase (a hexosyltransferase) using sucrose as a substrate in the following reaction:.
• These highly specialized gel filtration and chromatographic media are composed of macroscopic beads synthetically derived from the polysaccharide dextran.
• mesenteroides is an obligate heterolactic fermentative lactic acid bacterium (LAB) that is mostly used in industrial dairy fermentation, playing various roles, such as production of dextran, gas, and flavor compounds.
• brevis is one of the major lactobacilli found in tibicos grains, used to make kefir, but Lentilactobacillus species are responsible for the production of the polysaccharide (dextran and kefiran) that forms the grains.
• DEAE-Dextran (DEAE-D) is a positively charged dextran derivative that can be used for vaccine production, gene therapy, protein stabilization, dyslipidemia prevention, flocculating agents, and many other applications.
• Telluria mixta (formerly called Pseudomonas mixta) is a species of Gram-negative soil bacteria that actively degrades polysaccharides including dextran, inulin, pectate, starch, and xylan.
• Responsible exogenous solutes include sucrose-containing IVIg, mannitol, dextran, contrast dye, and hydroxyethyl starch.
• Other anterograde tracers widely used in neuroanatomy are the biotinylated dextran amines (BDA), also used in retrograde tracing.
• Later, sonoporation mediated microinjection of dextran molecules showed that membrane permeability mechanisms differ depending on the size of dextran molecules.
• In 1957, Porath discovered that columns filled with dextran gel could be used as "molecular sieves" to separate biomolecules by size.
• Biotinylated dextran amines (BDA) are organic compounds used as anterograde and retrograde neuroanatomical tracers.
• Dextran 1 is a hapten inhibitor that greatly reduces the risk for anaphylactic reactions when administering dextran.
• During his research on molasses he discovered several compounds in molasses, for example betaine, asparaginic acid, glutamic acid, arabinose, arabinic acid, dextran, phosphoglyceride and cholesterol.
• To improve the delivery of this compound, since it has a narrow therapeutic window, the Ainslie lab encapsulated it in acetalated dextran microparticles and also applied the formulation for Salmonella enterica and Francisella tularensis infection.
• Dextran drug delivery systems involve the use of the natural glucose polymer dextran in applications as a prodrug, nanoparticle, microsphere, micelle, and hydrogel drug carrier in the field of targeted and controlled drug delivery.

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