What's the difference between freezing and gelation?
Freezing
Definition:
(p. pr. & vb. n.) of Freeze
(a.) Tending to freeze; for freezing; hence, cold or distant in manner.
Example Sentences:
(1) In attacking the motion to freeze the licence fee during today's Parliamentary debate the culture secretary, Andy Burnham, criticised the Tory leader.
(2) Collagen production of rapidly thawed ligaments was studied by proline incubation at 1 day, 9 days, or 6 weeks after freezing and was compared with that of contralateral fresh controls.
(3) A simple method for ultrarapid freezing of cell cultures in monolayers was developed.
(4) We’re learning to store peak power in all kinds of ways: a California auction for new power supply was won by a company that uses extra solar energy to freeze ice, which then melts during the day to supply power.
(5) To selectively stain polyanionic macromolecules of growth plate cartilage and to prevent artifacts induced by aqueous fixation, proximal tibial growth plates were excised from rats, slam-frozen, and freeze-substituted in 100% methanol containing the cationic dye Alcian blue.
(6) The freeze-etch technique was used to study the morphology of Treponema refringens (Nichols).
(7) Reconstituted freeze dried allogeneic skin grafts contained virtually no blood, a phenomenon possibly analogous to the 'no reflow' phenomenon of microsurgery.
(8) The freezing procedure increased sperm motility in approximately 30% of samples from both animals.
(9) It is suggested that the intercalated disc functioned as a barrier to the freezing process.
(10) Healthbars such as Nakd fit this category and promise to deliver one of your five a day, based on the quantity of freeze-dried date paste used.
(11) Freeze-dried mannitol preparations were shown to be of a crystalline nature.
(12) Freezing may be valuable while quality control procedures are performed following radiolabeling as well as if temporary storage or shipment of radioantibodies prior to patient dosing is undertaken.
(13) The sea ice usually then begins to freeze again over the winter.
(14) We conclude that differences in incorporation between syngeneic and allogeneic bone grafts are reduced by pretreatment with deep-freezing or demineralisation.
(15) Previous studies are reviewed in the light of new information on retrograde axonal transport, circumventricular organs, the proper use of horseradish peroxidase, freeze-fracturing, immunocytochemistry and plasma protein gene expression in the developing human brain.
(16) Freezing enrichment cultures prior to testing for toxicity eliminated many nonbotulinal toxic substances that killed mice.
(17) The process of interaction between macrophages and promastigote and amastigote forms of Leishmania mexicana amazonensis was analyzed using freeze fracture and cytochemistry.
(18) The results of the rapid-freeze and deep-etch procedure showed that the ridges observed by the surface replica method consisted of linear arrangements of elliptical particles on the ES face of the plasma membrane.
(19) Cryotherapy with high-flow nitrous oxide was applied to the lid margin for 45 seconds in a freeze-thaw-freeze cycle.
(20) Three freeze-thaw cycles released a large proportion (50% to 60%) of the TCA-precipitable radioactivity from the worms.
Gelation
Definition:
(n.) The process of becoming solid by cooling; a cooling and solidifying.
Example Sentences:
(1) In addition, two semiquantitative tests (erythrocytes-agglutination test (FM-test) and ethanol gelation test (EGT] were included in the study.
(2) Under the conditions used, elimination of the gelation factor did not substantially alter growth, shape, motility, or chemotactic orientation of the cells towards a cAMP source.
(3) At low concentrations of gelactin, the gelatin of actin exhibits a bell-shaped dependency on free calcium ion concentration, being stimulated between pCa 8 and 6 and inhibited at pCa below 5.5, while at high gelactin concentrations the calcium sensitivity of actin gelation is apparently abolished.
(4) While nanograms of the Veillonella and Fusobacterium LPS killed the chick embryos and gelated the Limulus lysates, microgram amounts of the Bacteroides LPS were needed to give positive reaction in the same test systems.
(5) The onset of gelation was found to correspond to the same macroscopic rheology (i.e.
(6) The gelation induced by warming (to 25 degrees C) the 100,000 g supernatant fraction (extract) of HeLa cells lysed in a buffer containing sucrose, ATP, DTE, EGTA, imidazole, and Triton X-100 was studied in the presence of myosin and heavy meromyosin (HMM).
(7) The effect of three components of troponin (TN C, I, T) on the gelation of F-actin was investigated by measuring the increase in viscosity at a very low velocity gradient in a rotating viscometer.
(8) Similarly, 20 mM-Mg2+ also enhanced Ca2+-induced hyalin gelation.
(9) Included are quasielastic light scattering techniques to determine the compressibility moduli of polymer lattices, resonance methods that can be used to measure the shear modulus of weak gels, assays that probe the swelling and contraction of mucin aggregates, and microscope based light scattering techniques to probe gelation within single cells.
(10) We report here that alpha-actinin from striated muscle is an endogenous PtdInsP2-bound protein and that the specific interaction between alpha-actinin and PtdInsP2 regulates the F-actin-gelating activity of alpha-actinin.
(11) Above minimal gelling concentration calculation of thermodynamic parameters for gelation of arachin revealed a constant delta Hbonding (-1220 cal.mol-1) where delta Sbonding values varied with an increase in protein concentration (ranging from -4.01 e.u.
(12) One may consider the removal of fibrinopeptide B to act as a switch: after it is removed fibrin assembles rapidly to thick fibers and gelation is fast; but when this peptide is still attached, there is a slow assembly of thin fibers, and gelation, especially of dilute fibrin, is delayed.
(13) Trypsin and acid phosphatase-containing silica sol-gel glasses were obtained by mixing a solution of an enzyme with polyethylene glycol (PEG) 6000 and tetramethoxy orthosilicate at room temperature, followed by gelation and drying.
(14) In cirrhosis higher levels of E. coli O antibodies were found in endotoxin-positive than in endotoxin-negative patients, supporting the view that the limulus gelation test specifically detects endotoxin (i.e.
(15) The fragments failed to affect the low-shear viscosity of F-actin up to a molar ratio to actin monomer of 1:3.2, indicating that gelation activity of the parental molecules was lost and the fragments have only a single binding site on F-actin.
(16) Subsequent extensive coaggulation studies revealed a positive ethanol gelation test, low levels of firbrinogen, plasminogen, alpha2-macroglobulin and P&P and high level of AHF related protein for the stage of pregnancy, i.e.
(17) It is concluded that the finding of a positive ethanol gelation test is not due to the fibrinogen concentration per se.
(18) On the basis of their similarities in composition, solubility, and rate of movement, we have proposed that the particulates responsible for microtubule gelation-contraction are the insoluble protein complexes, which have been suggested to be the transported component of SCa.
(19) Two protein factors which bind to, and induce gelation of, actin filaments were purified from Ehrlich tumour cells.
(20) The assay results obtained by the colorimetric Limulus test correlate better with the pyrogenicity of the test synthetic compounds than those given by the gelation method, although the dependence of pyrogenicity on chemical structure is greater.