(n.) A double salt of boric and silicic acids, as in the natural minerals tourmaline, datolite, etc.
Example Sentences:
(1) Both series were prepared by incorporating a silanated barium borosilicate filler into a visible-light-activated polyphenylene polymethacrylate resin matrix.
(2) Results of these studies are presented in this article and are discussed in terms of the interactions between borosilicate glasses and aqueous solutions.
(3) The generator column is a borosilicate glass tube with 30 microns fused glass frit containing 0.75 ml AG1X8 anion exchange resin.
(4) Medium Eagle MEM with the addition of allogeneic serum and borosilicate glass were used.
(5) As has been observed in the past, fibrinogen adsorption peaked at intermediate plasma concentrations on both Pyrex and borosilicate glass (the so-called Vroman effect), but almost twice as much fibrinogen adsorbed to glass when TRIS was used to dilute the plasma instead of CPBSz.
(6) Blood lead, erythrocyte protoporphyrin, and hemoglobin levels were measured for family members of workers exposed to lead borosilicate dust in a capacitor and resistor plant in Colorado.
(7) It was observed that borosilicate glass prefilters have a high absorptive capacity for isolated rat-liver mitochondria and that this binding does not need any kind of chemical procedure.
(8) The elements are extracted with concentrated nitric acid in borosilicate glass tubes at 90 degrees C for 1 h, and determined by flame atomic absorption spectroscopy.
(9) Borosilicate glass (G) and commercial poly(methyl methacrylate) (PMM) surfaces were examined at pH 7, monovalent ionic strength 0.14 and 22 degrees C. Thrombin concentrations ranged from 6 X 10(-9) to 5.2 X 10(-8)M. Decreases in thrombin concentration in 10 ml vessles were determined by clotting time assay.
(10) PCV determinations were made on five patient blood samples using eight tubes of varying diameters, four made of soda-lime glass and four made of borosilicate glass.
(11) Gel portions containing protein stained with Ponceau S are excised and transferred to borosilicate glass digestion tubes containing 0.9 ml of 1 mM NaOH or 5 mM Na2HPO4.
(12) A 0.32 mm id X 30 m fused silica column and a 0.75 mm id X 30 m borosilicate glass column (both with OV-1 bonded phase) are investigated.
(13) There was no sorption to soda glass tubes, borosilicate glass volumetric flasks or soda glass microlitre syringes but minor sorption to polypropylene syringes, polypropylene pipette tips and rubber bottle stoppers after 240 min contact.
(14) The surface topography of USP Type I borosilicate glass containers was viewed after exposure to "sulfur," ammonium bifluoride, and sulfuric acid treatments.
(15) Gel filtration high performance liquid chromatography using a Borosil TSK 400 column shows that the tetrameric state of the native enzyme is not affected by the presence of the effectors.
(16) The uptake or adsorption of radioisotopically labeled oleic acid and cholic acid by plastic tubing of Tygon, Teflon, and polyethylene, and Pyrex, and borosilicate glass, and steel was measured.
(17) Extended-tip shunting was avoided by fabricating Na+ ion-selective microelectrodes from aluminosilicate rather than borosilicate glass.
(18) Borosilicate surface was rated at an intermediate level, but it did not provide good matrix for coating due to its poor reproducibility.
(19) In contrast, hydrolysis in borosilicate glass vials is useless, since nanomoles of sulfate added cannot be recovered adequately.
(20) This article discusses the results of studies that utilized Electron Spectroscopy for Chemical Analysis (ESCA), a surface analytical technique, in conjunction with Ar+ ion milling, a method of depth profiling, to examine some borosilicate glass containers.
Silicate
Definition:
(n.) A salt of silicic acid.
Example Sentences:
(1) Folch extraction and partition followed by silicic acid column chromatography revealed the antigens to be glycolipids.
(2) The UE and KE fractions were then separated by silicic acid column chromatography with a stepwise elution method using ether-hexane.
(3) Increased levels of influenza virus multiplication concomitant with decreased levels of interferon occurred in cell monolayers pretreated with silicates.
(4) The dissolution t50 and various pharmacokinetic parameters showed directly compressible starch and carboxymethylstarch to be the most effective disintegrants in the concentrations employed while magnesium aluminum silicate and microcrystalline cellulose were about equal but less effective than the previous disintegrants.
(5) As with SRS-A, pSRS could be absorbed onto Amberlite XAD-2 and silicic acid.
(6) The in vivo experiments confirmed previous reports concerning unfavourable pulp reaction caused by silicate cement, while the glass ionomer cement caused mainly a mild pulp reaction after 8 days of observation.
(7) The results are negative in swampy meadow -- habitats on siliceous soils.
(8) The origin of aluminum silicate inclusions in pulmonary macrophages has yet to be determined, although preliminary evidence strongly suggests that they are derived from inhaled tobacco smoke.
(9) Purification was achieved by sequential use of partitioning in solvents, DEAE-Sephadex chromatography, base treatment, and silicic acid chromatography.
(10) Chromatography of rat-liver lipids on a column of silicic acid or a mixture of silicic acid and Hyflo Super-Cel, with chloroform-methanol mixtures, gave monophosphoinositide-containing fractions which were invariably contaminated by the presence of nitrogen-containing phospholipids.
(11) Hemolysis from silicates is decreased by interventions which remove superoxide anion or hydrogen peroxide from the medium, or by pretreatment of dusts with iron chelators.
(12) Condensation of 1,2,3,4,6-penta-O-acetyl-beta-D-galactopyranose with benzyl 2-azido-4,6-di-O-benzyl-2-deoxy-beta-D-galactopyranoside in the presence of trimethylsilyl triflate gave crystalline benzyl 2-azido-4,6-di-O-benzyl-2-deoxy-3-O-(2,3,4,6-tetra-O-acetyl-beta-D-ga lactopyranosyl)-beta-D-galactopyranoside (76%), which was converted into benzyl 2-azido-4,6-di-O-benzyl-2-deoxy-3-O-(2,6-di-O-benzyl-beta-D-galactopy ranosyl)-beta-D-galactopyranoside and condensed with 3,4,6-tri-O-acetyl-2-azido-2-deoxy-alpha-D-galactopyranosyl bromide in the presence of silver silicate on alumina and molecular sieve 4 A to give 61% of benzyl O-(3,4,6-tri-O-acetyl-2-azido-2-deoxy-beta-D-galactopyranosyl)-(1----4)- O-(2,6-di- O-benzyl-beta-D-galactopyranosyl)-(1----3)-2-azido-4,6-di-O-benzyl-2-deo xy- beta-D-galactopyranoside.
(13) Total neutral and acidic glycosphingolipids were prepared from whole tissues of the sea-water bivalve, Meretrix lusoria, and the former preparation was further fractionated into subgroups by silicic acid column chromatography.
(14) Talc (magnesium silicate) is a widely used, generally considered benign substance.
(15) Silica is a component of talc (magnesium silicate) used as a drug filler.
(16) Silicic acid could, by hydrogen bonding, alter the conformation of organic macromolecules, since hydrogen bond association can inhibit silanol condensation.
(17) A novel phosphonoglycosphingolipid named SGL-I' containing 1 mol of 2-aminoethylphosphonate residue was isolated from the skin of Aplysia kurodai using two silicic acid chromatography systems.
(18) Treatment of exposed dentin with calcium hydroxide reduced the pulp irritating effect of silicate cement restorations, but induced only limited volumes of irregular secondary dentin formation.
(19) The activity to induce IgE antibody production by fly ash instillation was almost the same as that by aluminum silicate, studied previously.
(20) Isolated cells from the siliceous sponge Geodia cydonium as well as small primary aggregates (diameter: 70 mum) consisting of them show no increase in rates of programmed syntheses and mitotic activity with time.