(n.) A letter, syllable, or word, added to the end of another word; a suffix.
(v. t.) To annex; specifically (Gram.), to add or annex, as a letter, syllable, or word, to the end of another or principal word; to suffix.
Example Sentences:
(1) Postfixation of Kryofix-treated tissue with formalin results in false-negative immunostaining.
(2) The addition of oxalate to a suspension of rabbit peritoneal neutrophils before fixation with glutaraldehyde and postfixation with osmium tetroxide-antimonate greatly enhanced the amount of calcium antimonate precipitate subsequently detectable with the electron microscope.
(3) Intravascular fat in tissue postfixed in osmium tetroxide, embedded in epoxy or paraffin, and stained with toluidine blue, hematoxylin, or Oil Red O is more easily visualized than in frozen tissue that is stained with Oil Red O.
(4) Short (t less than 1 h) postfixation with either OsO4 plus K4Fe (CN)6 or OsO4 plus aminotriazole, added to lysosomal cerium localization a high membrane contrast.
(5) When such sections were postfixed in formalin, immunoreactivity was not diminished even after prolonged fixation.
(6) Postfixation with unbuffered ferrocyanide-reduced osmiumtetroxide contributes to a better localization of microperoxisomes in both celltypes.
(7) The blood cells were subsequently postfixed in osmium tetroxide, embedded in epoxy resins, and studied by electron microscopy.
(8) Tobacco mosaic virus particles were found in small packets and in small numbers, with the electron microscope, in necrotic leaf cells of Nicotiana glutinosa when the samples were fixed in glutaraldehyde and postfixed in OsO(4), and the sections were stained with heavy metals.
(9) Postfixation treatment of glutaraldehyde fixed pericardium aids spontaneous endothelialization and decreases tissue calcification.
(10) On the other hand, when fresh-frozen sections were fixed before or after incubation with various solutions (postfixation method) and then treated with various salt solutions, greater differences were seen in immunostaining of ER between saline-injected and hormone-treated animals.
(11) Slices of lung tissue were fixed in aldehyde, labelled with a battery of lectin-horseradish peroxidase conjugates, incubated in a diaminobenzidine-hydrogen peroxide medium and then postfixed in an osmium tetroxide solution.
(12) The use of gaseous (DEPC, BOV) postfixation of frozen-dried tissues for the fixation of non-hormone proteins was systematically studied.
(13) Sections were postfixed in -20 degrees C methanol and stained immediately by indirect immunofluorescence using sheep anti-mouse laminin, sheep antimouse type IV collagen, rabbit anti-mouse heparan sulfate proteoglycan, and mouse monoclonal anti-porcine plasma fibronectin.
(14) Chitin was visualized in cell walls after hydrolysis with potassium hydroxide and subsequent postfixation of the deacetylated polysaccharide (chitosan) in OsO4.
(15) Following a 30-min buffer wash (4 C) they are postfixed in buffered 2% osmium tetroxide for 2 hr at room temperature, washed, and dehydrated through an ethanol series and two acetone baths.
(16) The method consists of vascular perfusion with 5% glutaraldehyde dissolyed in a 300 mOsm Millonig buffer containing 200 mOsm sucrose and 2.7% low molecular dextran, a postfixation in the same medium, a rinse overnight in a normoton phosphate buffer containing 200 mOsm sucrose, an asmication in 2% OsO4 dissolved in a phosphate buffer, an extensive stepwise dehydration starting in 10% acetone and, finally, embedding in Vestopal W.
(17) However, CD45 and CD74 (LN2) were detectable in B5 postfixed material.
(18) Tissue samples were prepared by glutaraldehyde fixation of whole dissected larvae or whole embryos without osmium tetroxide postfixation.
(19) For the ultrastructural study, some blocks of every portion of the specimen were postfixed in osmium and embedded in Epon.
(20) Marked reductions in the length of the synapses, as determined on EPTA-postfixed tissue where noted.
Prefix
Definition:
(v. t.) To put or fix before, or at the beginning of, another thing; as, to prefix a syllable to a word, or a condition to an agreement.
(v. t.) To set or appoint beforehand; to settle or establish antecedently.
(n.) That which is prefixed; esp., one or more letters or syllables combined or united with the beginning of a word to modify its signification; as, pre- in prefix, con- in conjure.
Example Sentences:
(1) The present studies were performed to determine if the omission of prefixation would provide a better method for localizing adenylate cyclase in cardiac muscle.
(2) Close correspondence was found between the two eyes with respect to both prefixation tonic level and magnitude of tonic after-effect.
(3) In rigor control, crossbridges were most regular in muscles that were stabilized before freezing by prefixation in glutaraldehyde followed by 'hardening' with neutralized tannic acid, so all nucleotide treatments were terminated by such fixation.
(4) The difference in adhesivity between intact and stimulated PEC can be abolished by glutaraldehyde prefixation.
(5) Prolongation of the prefixation and increasing the pH of the incubation medium increased the staining intensity of the secondary granules and decreased the staining intensity of the primary granules.
(6) The frontal basal cisterns could not be filled sufficiently with the contrast agent due to haematoma and a prefixed chiasm accompanied by arachnoid adhesions in two cases.
(7) Prefixation digestions of epidermal sheets with chondroitinase ABC.
(8) When most utterances were long enough to include pronominal prefixes as well as roots, morphological structure was apparently discovered.
(9) Prefixed virus was round with peak diameters of 141 and 130 nm, respectively, in phosphotungstate, and 148 and 117 nm, respectively, in uranyl acetate.
(10) The retrochiasmal location of a tumour and the presence of a prefixed chiasm pose a major difficulty in total excision of craniopharyngiomas.
(11) After filipin incubation of prefixed vibratome slices, filipin-cholesterol complexes appeared as 20-30 proturberances and pits on P- and E-faces.
(12) Randomly distributed alpha-mannan was detected by scanning electron microscopy at the surface of prefixed protoplasts using colloidal gold labelled with Concanavalin A as a marker.
(13) Exposure to TPA or the use of a hyperosmolal prefixative vehicle both yielded higher DC numbers than did controls or conventional prefixative vehicles, respectively.
(14) On the resulting radiographs some prefixed distances were measured.
(15) While these machinations have been taking place behind the scenes, chief executive David Abraham has masterminded a rolling rebrand that has seen the company's 10 channels gradually drop the UKTV prefix on-screen in favour of attention-seeking one-word names.
(16) Prefixation in glutaraldehyde had little effect on vesicle sensitivity to subsequent tonicity change, not did the fixative per se exert an obvious osmotic effect.
(17) The possible relation with prefixation flow heterogeneity in the vasodilated preparation is discussed.
(18) After prefixation with hyperosmolal vehicles, however, TPA treatment did not induce higher DC yield than in a control series.
(19) After prefixation in formaldehyde, samples were immunostained with poly- or monoclonal antibodies to desmin or vimentin, and indirectly tagged with colloidal gold probes by the biotin-streptavidin method.
(20) The results confirm that 3T3 cells contain aggregated intramembranous particles and that native SV3T3 cells do not, regardless of whether cells are prepared in glycerol, sucrose, tissue culture medium or following prefixation in paraformaldehyde.