| 单词 | osmotic shock |
| 释义 | > as lemmasosmotic shock osmotic shock n. a sudden lowering of the osmotic pressure of the liquid surrounding a cell or virus, causing inflow of liquid and consequent rupture. ΘΚΠ the world > life > biology > biological processes > movement > [noun] > diffusion through porous membrane > osmotic shock osmotic shock1950 1950 T. F. Anderson in Jrnl. Appl. Physics 21 70/1 The similar viruses, T2, T4, and T6 which appear in the electron microscope to have membranes surrounding the internal structures of the heads can be disintegrated by what might be termed ‘osmotic shock’... Presumably, the virus heads swell when the osmotic pressure is suddenly reduced, and actually burst if the reduction is sufficiently large and sudden. 1973 D. A. Anderson Introd. Microbiol. x. 110/1 The cells of many bacteria..are likely to burst when placed in distilled water. This method (osmotic shock) is often used to release components from inside the cell for biochemical analysis. 1990 BioFactors 2 136/1 After removal of their perigranular membrane by osmotic shock, purified granules can still generate membrane vesicles from the granule matrix. < as lemmas |
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