| 영문 | permeability | 한글 | 투과성 |
|---|---|---|---|
| 설명 | 어떤 물질계나 구조에 액체나 기체 등의 확산이 있는 경우에 그 구조가 확산성 물질분자의 통과나 침입을 허용하는 성질. 생물학적으로는 특히 세포막을 비롯한 여러 생체의 막구조가 가지는 투과성이 중요하다. 이 생체막의 대부분은 용매나 일부의 한정된 용질 분자만을 통과시키기 쉬운 반투막을 가지며, 이 성질은 그 생체막이 살아 있는 상태에서만 유지된다. 생체막의 투과성은 그 막을 지나서 일어나는 여러 가지 물질의 이동에 깊은 관계가 있다. 삼투압에 의한 단순한 확장에 주로 기인하는 수동적인 경우로부터 염류-포도당-아미노산 등의 흡수 때 에너지를 필요로 하는 능동적 수송까지 여러 가지가 있다. 또한 분비-흡수-배출, 막의 흥분성 등 수많은 중요한 생리현상의 요인이다. |
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| HPE | hepatic portoenterostomy; high-permeability edema; history and physical examination; holoprosencepha... |
|---|---|
| LIS | laboratory information system; lateral intercellular space; left intercostal space; library informat... |
| LISS | low-ionic-strength saline |
| ACMP | alveolar-capillary membrane permeability |
| BPI | bacterial permeability-increasing [protein]; Basic Personality Inventory; beef-pork insulin; blood p... |
| Ii | Ionic |
|---|---|
| IS | Ionic Strength |
| LISS | Low ionic strength solutions |
| BPI | Bactericidal permeability increasing protein |
| Lp | Hydraulic permeability |
| non-ionic contrast media | <radiology> A class of radiographic contrast media which do not ionise in solution, thereby decreasing effective osmolarity and toxicity. (05 Mar 2000) |
|---|---|
| ionic | Relating to an ion. (05 Mar 2000) |
| ionic coupling | <chemistry> The same as electrical coupling. (18 Nov 1997) |
| ionic medication | Movement of ions as a result of an applied electric field. For example the delivery of a charged molecule from the end of a micropipette without hydraulic flow. (18 Nov 1997) |
| ionic strength | Symbolised as g/2 or I and set equal to 0.5σmizi2, where mi equals the molar concentration and zi the charge of each ion present in solution; if molar concentrations (ci) are used instead of molality (and the solution is dilute), then I == 0.5(1/ρo)σcizi2 where ρo is the density of the solvent; a number of biochemically important events (e.g., protein solubility and rates of enzyme action) vary with the ionic strength of a solution. (05 Mar 2000) |
| capillary permeability | Property of blood capillary walls that allows for the selective exchange of substances. Small lipid-soluble molecules such as carbon dioxide and oxygen move freely by diffusion. Water and water-soluble molecules cannot pass through the endothelial walls and are dependent on microscopic pores. These pores show narrow areas (tight junctions) which may limit large molecule movement. (12 Dec 1998) |
| capillary permeability factor | A mixture of bioflavonoids extracted from plants (especially citrus fruits). It reduces the permeability and fragility of capillaries and is useful in the treatment of certain cases of purpura that are resistant to vitamin C therapy. See: hesperidin, quercetin, rutin. Synonym: capillary permeability factor, citrin, permeability vitamin. (05 Mar 2000) |
| cell membrane permeability | A quality of cell membranes which permits the passage of solvents and solutes into and out of cells. (12 Dec 1998) |
| permeability | The property or state of being permeable. (18 Nov 1997) |
| permeability coefficient | A coefficient associated with simple diffusion through a membrane that is proportional to the partition coefficient and the diffusion coefficient and inversely proportional to membrane thickness. (05 Mar 2000) |
| permeability constant | A measure of the ease with which an ion can cross a unit area of membrane driven by a 1.0 m difference in concentration; usually expressed in centimeters per second. Compare: permeability coefficient. (05 Mar 2000) |
| permeability theory of narcosis | That the permeability of the cell membrane is decreased by narcotic concentrations of aliphatic and other central nervous system depressants. (05 Mar 2000) |
| permeability vitamin | A mixture of bioflavonoids extracted from plants (especially citrus fruits). It reduces the permeability and fragility of capillaries and is useful in the treatment of certain cases of purpura that are resistant to vitamin C therapy. See: hesperidin, quercetin, rutin. Synonym: capillary permeability factor, citrin, permeability vitamin. (05 Mar 2000) |
| soil permeability | The ease with which gases, liquids or plant roots penetrate or pass through a layer of soil. (09 Oct 1997) |
| dental enamel permeability | <dentistry> The property of dental enamel to permit passage of light, heat, gases, liquids, metabolites, mineral ions and other substances. It does not include the penetration of the dental enamel by microorganisms. (12 Dec 1998) |
제품명 |
판매사 |
보험코드 | 성분/함량 | 구분/보험급여 |
|---|
제품명 |
판매사 |
보험코드 | 성분/함량 | 구분/보험급여 |
|---|