What's the difference between ion and sequester?

Ion


Definition:

  • (n.) One of the elements which appear at the respective poles when a body is subjected to electro-chemical decomposition. Cf. Anion, Cation.

Example Sentences:

  • (1) Structure assignment of the isomeric immonium ions 5 and 6, generated via FAB from N-isobutyl glycine and N-methyl valine, can be achieved by their collision induced dissociation characteristics.
  • (2) It has recently been suggested that procaine penicillin existed in solution in vitro and in vivo as a "procaine - penicillin" complex rather than as dissociated ions.
  • (3) The transport of potassium ions through membranes of red blood cells was examined in in bitro experiments using a CMF of 4500 oersted.
  • (4) of PLA2 caused marked degranulation of mast cells in the rat mesentery which was facilitated by addition of calcium ion (10 mM) but antagonized by pretreating with three antiinflammatory agents.
  • (5) Results suggest that Cd-MT is reabsorbed and broken down by kidney tubule cells in a physiological manner with possible subsequent release of the toxic cadmium ion.
  • (6) The influence of calcium ions on the electrophoretic properties of phospholipid stabilized emulsions containing various quantities of the sodium salts of oleic acid (SO), phosphatidic acid (SPA), phosphatidylinositol (SPI), and phosphatidylserine (SPS) was examined.
  • (7) Finally, it could be observed that elevated osmotic pressures reduced the lysis of isolated secretory granules when bicarbonate ions were present in the incubation medium.
  • (8) Since intracellular Ca2+ seems to play a role in stimulus-secretion coupling and ion movements, several aspects of Ca2+ homeostasis have been investigated in CF.
  • (9) An investigation of the constitutive ions of salts revealed that their effects were additive only in the case of salts that have no specific binding capability.
  • (10) Resorption of calcium and depositon of inorganic phosphates in the implanted ceramics suggested that ions were being exchanged with the body fluids.
  • (11) Dose distributions were evaluated under thin sheet lead used as surface bolus for 4- and 10-MV photons and 6- and 9-MeV electrons using a parallel-plate ion chamber and film.
  • (12) In voltage-clamp experiments the ion current flowing through the channels was homogeneous indicating a defined conformation and a uniform size.
  • (13) Previous evidence includes changes in Ca2+ fluxes and intracellular activity, membrane potential changes, and effects of ion-channel blockers.
  • (14) Excessive accumulation of hydrogen ions in the brain may play a pivotal role in initiating the necrosis seen in infarction and following hyperglycemic augmentation of ischemic brain damage.
  • (15) Measurements of acetylcholine-induced single-channel conductance and null potentials at the amphibian motor end-plate in solutions containing Na, K, Li and Cs ions (Gage & Van Helden, 1979; J. Physiol.
  • (16) EGTA was ineffective in removing calmodulin from particulate preparations, but treatment with the tervalent metal ion La3+ resulted in a loss of up to 98% of calmodulin activity from these preparations.
  • (17) The present results suggest that TMB-8 blocks twitches by preventing the release of Ca++ ions bound to the intracellular surface of the t-tubular membrane which is often called the store of 'trigger-calcium' ions.
  • (18) Blockade of beta-adrenoceptors interferes with haemodynamic and metabolic adaptations and ion balance during dynamic exercise.
  • (19) Mechanosensitive ion channels may play a key role in transducing vascular smooth muscle (VSM) stretch into active force development.
  • (20) PFP-MAM is separated by capillary GC and identified mass spectrometrically by selected ion monitoring (SIM).

Sequester


Definition:

  • (v. t.) To separate from the owner for a time; to take from parties in controversy and put into the possession of an indifferent person; to seize or take possession of, as property belonging to another, and hold it till the profits have paid the demand for which it is taken, or till the owner has performed the decree of court, or clears himself of contempt; in international law, to confiscate.
  • (v. t.) To cause (one) to submit to the process of sequestration; to deprive (one) of one's estate, property, etc.
  • (v. t.) To set apart; to put aside; to remove; to separate from other things.
  • (v. t.) To cause to retire or withdraw into obscurity; to seclude; to withdraw; -- often used reflexively.
  • (v. i.) To withdraw; to retire.
  • (v. i.) To renounce (as a widow may) any concern with the estate of her husband.
  • (n.) Sequestration; separation.
  • (n.) A person with whom two or more contending parties deposit the subject matter of the controversy; one who mediates between two parties; a mediator; an umpire or referee.
  • (n.) Same as Sequestrum.

Example Sentences:

  • (1) Both organisms have previously been found to be sequestered in the posterior lens capsule by histological and microbiological examination of excised capsular specimens.
  • (2) The original agricultural wastes had captured CO2 from the air through the photosynthesis process; biochar is a low-tech way of sequestering carbon, effectively for ever.
  • (3) The rate of release of an aqueous solution of pilocarpine hydrochloride sequestered in hydrogel-type materials can be reduced by plasma treatment of the polymer surface.
  • (4) Clearance into the mediastinum may be the major pathway for liquid sequestered in the loose, binding connective tissue.
  • (5) Since some genotoxic metals are diffused in the environment and are often sequestered as insoluble precipitates in water sediments and sludges, the introduction of NTA is likely to increase the risk of environmental pollution because of its ability to solubilize and make those metals reactive.
  • (6) The idea that these problems exist on the other side of the world, and that we Australians can ignore them by sheltering comfortably in our own sequestered corner of the globe, is a fool’s delusion.” Brandis sought to reach out to Australian Muslims, saying the threat came “principally from a small number of people among us who try to justify criminal acts by perverting the meaning of Islam”.
  • (7) MCTP-treated rats receiving control serum (CS) tended to sequester more 111In-labeled platelets than respective DMF controls, but this was not statistically significant.
  • (8) Although the chemical basis of these results is not known, they indicate that profilin can tightly sequester actin monomers and support the earlier suggestion that the affinity of profilin for actin may be under metabolic control.
  • (9) Membrane receptor binding of luteolytic hormones activates production of a second messenger (such as a product of PI turnover) that stimulates release of sequestered, intracellular Ca2+ by a mechanism linked to inhibition of microsomal Ca2+-ATPase activity.
  • (10) The self-antigen may be poorly presented by APC or sequestered in a particular body compartment; alternatively, these T cells may have low affinity receptors needing high levels of antigen.
  • (11) We found that the 3' splice site of the C4-M1 intron is sequestered in a stem-loop structure, which inhibits the splicing reaction in vitro.
  • (12) This paper also discusses the effects on tissue concentrations and half-lives of trapping HCB in the intestines by sequestering a large portion of it there.
  • (13) However, in less than 15 sec, LTB4-treated PMN lose the ability to respond further to LTB4; decrease the affinity and number of high affinity receptors available for binding LTB4; sequester LTB4 in plasmalemma-associated sites that are inaccessible to a releasing buffer regimen; and begin internalizing LTB4.
  • (14) In the preceding paper we showed that de novo initiation at the L gene is prevented by a hairpin structure that sequesters the ribosomal binding site.
  • (15) The sequester is about as illogical process as you could possibly conceive."
  • (16) Light and electron microscopy revealed bacteria sequestered within the capsular bag.
  • (17) Stimulating the cells with noradrenaline (NA) also induced release of sequestered Ca2+ and an influx of extracellular Ca2+.
  • (18) Further, they demonstrate that the copper bound to metallothionein is not permanently sequestered, but can be incorporated into other copper proteins.
  • (19) By contrast, when trout were injected with cadmium intraperitoneally, most of the metal accumulated in the liver where it was sequestered by the two isoforms of metallothionein.
  • (20) There is as yet no easy explanation for regression in case of prolapsed, perhaps even sequestered, disc tissue.

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