| GF | gastric fistula; gastric fluid; germ-free; glass factor; glomerular filtration; gluten-free; grandfa... |
|---|---|
| GFR | glomerular filtration rate |
| Kfc | filtration coefficient |
| SFP | screen filtration pressure; simultaneous foveal perception; spinal fluid pressure; stopped flow pres... |
| SFR | screen filtration resistance; stroke with full recovery |
| gel diffusion precipitin tests in two dimensions | Precipitin test's made in a layer of agar that permits radial diffusion, in both of the horizontal dimensions, of one or both reactants. Double (gel) diffusion in two dimensions (Ouchterlony test, technique, or method) incorporates antigen and antibody solutions placed in separate wells in a sheet of plain agar, permitting radial diffusion of both reactants; this method is widely used to determine antigenic relationships; the bands of precipitate that form where the reactants meet in optimal concentration are of three patterns, referred to as reaction of identity, reaction of partial identity (cross-reaction), and reaction of nonidentity. (05 Mar 2000) |
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| gel diffusion reactions | Precipitin test's in which the immune precipitate forms in a gel medium (usually agar) into which one or both reactants have diffused; generally classified in two types, in one dimension, and in two dimensions. Synonym: gel diffusion reactions. (05 Mar 2000) |
| gel electrophoresis | <molecular biology> Electrophoresis using a gel supporting phase. Usually applied to systems where the gel is based on polyacrylamide. See: electrophoresis. (05 May 1997) |
| gel retardation assay | A lab technique used to find out if there are proteins binding a fragment of DNA (in a DNA-protein complex) by watching how fast the DNA fragment moves through an electric field and seeing whether it moves slower when a particular protein is also present. (09 Oct 1997) |
| gel structure | Brush heap structure of fibrils giving firmness to hydrocolloids. (05 Mar 2000) |
| gel transfer | Any lab technique used to transfer substances which had been separated using gel electrophoresis from the gel to a membrane for further processing or analysis. For example: any type of blotting. (09 Oct 1997) |
| pharmacopeial gel | A suspension, in a water medium, of an insoluble drug in hydrated form wherein the particle size approaches or attains colloidal dimensions. (05 Mar 2000) |
| colloidal gel | A colloid that has developed resistance to flow because of chemical or thermal change. (05 Mar 2000) |
| polyacrilamide gel | A white, water-soluble, solid gel used as a gel base for electrophoresisand as a thickening or adhesive additive in other industrialapplications. (09 Oct 1997) |
| polyacrylamide gel electrophoresis | Analytical and separative technique in which molecules, particularly proteins, are separated by their different electrophoretic mobilities in a hydrated gel. The gel suppresses convective mixing of the fluid phase through which the electrophoresis takes place and contributes molecular sieving. Commonly carried out in the presence of the anionic detergent sodium dodecylsulphate (SDS). SDS denatures proteins so that noncovalently associating sub unit polypeptides migrate independently and by binding to the proteins confers a net negative charge roughly proportional to the chain weight. See: SDS PAGE. (21 Jun 1999) |
| pulsed-field gel electrophoresis | Gel electrophoresis in which, after electrophoretic migration has begun, the current is briefly stopped and reapplied in a different orientation; allows for the purification of long DNA molecules. Synonym: pulsed-field gel electrophoresis. (05 Mar 2000) |
| pulse-field gel electrophoresis | Gel electrophoresis in which, after electrophoretic migration has begun, the current is briefly stopped and reapplied in a different orientation; allows for the purification of long DNA molecules. Synonym: pulsed-field gel electrophoresis. (05 Mar 2000) |
| sol gel transformation | Transition between more fluid cytoplasm (endoplasm) and stiffer gel like ectoplasm proposed as a mechanism for amoeboid locomotion: since the endoplasm cannot really be considered a simple fluid and has visco elastic properties like a gel, the term is misleading. (18 Nov 1997) |
| disc gel | Confusingly, nothing to do with shape, gels in which there is a discontinuity in pH or gel concentration or buffer composition. (18 Nov 1997) |
| electrophoresis, agar gel | Electrophoresis in which agar or agarose gel is used as the diffusion medium. (12 Dec 1998) |