(n.) A salt formed by the combination of boric acid with a base or positive radical.
Example Sentences:
(1) The derivatives are separated on a reversed-phase column (TSKgel ODS-120T) by gradient elution of acetonitrile in a mobile phase containing borate buffer (pH 8.5) and tetra-n-butylammonium chloride, and then determined by fluorimetry.
(2) Ultracentrifuge analyses showed similar molecular weights and laser quasi-elastic light scattering showed similar diffusions at pH 7.0 and 9.0 in borate and in the absence of borate.
(3) In both clincis phenylmercuric borate was used for desinfection of the thermometers.
(4) In borate buffer pH 8.0, with 0.15 M cyclohexanedione, the inactivation proceeds with a pseudo-first-order rate constant 0.084 hr.-1.
(5) At pH 9.0, nearly 2 mol of borate were complexed per glycotripeptide.
(6) The ability of LY 171,883 to antagonize LTC4 was eliminated in the presence of 45 mM serine borate in endothelium denuded tissues.
(7) Genomic RNA profiles were analysed by polyacrylamide gel electrophoresis (PAGE) on both 10% Laemmli and tris-borate-EDTA-(TBE)-urea gels.
(8) Noninfectious arbovirus antigens were prepared from borate-saline suspensions of infected suckling mouse brain buffered with tris(hydroxmethyl)aminomethane and treated with beta-propiolactone (BPL).
(9) Fertility (fertile eggs per 100 set) and hatchability (live chicks per 100 fertile eggs) were both nil in the borate-treated hens, compared with 57 and 95 and 59 and 100 for the control and aluminate-treated hens, respectively.
(10) (2) Borate decreases the equilibrium constant of the overall reaction in the direction of ethanol oxidation, therefore, borate enters directly into the overall reaction rather than merely decreases the effectiveness of the catalyst.
(11) The largest quantities of 125I BSA eluted with 1 M roprionic acid at pH 2.7 (86%) and 0.1 M borate buffer at pH 11.25 (80%).
(12) The nucleotide reactant NAD+ has no effect on the inactivation rate in either the presence or absence of borate.
(13) Borate also preserves white blood cells in urine and thereby marginally improved the diagnosis of pyuria.
(14) Borate bands are also observed in the spectra of other basic analytes, as well as when certain variations are made in the silver colloid preparation.
(15) glycerol or mannitol) be used to change the pH of the borate buffer for the production of greater pH gradient with a range of up to 4-5 pH units.
(16) The 0.1% dipivalyl epinephrine treatment approximated the results obtained with 1% epinephrine borate or phenylephrine 5% in reducing the intraocular pressure.
(17) In borate buffer the bulk of membranes partitioned in the poly(ethylene glycol)-rich top phase, whereas plasma membranes were pulled selectively into the dextran-rich bottom phase in the presence of ligand.
(18) The fluorophores produced in phosphate or borate buffer were the same but the fluorescence intensities were suppressed in borate buffer.
(19) S1 and G1, which comigrated in an SDS-sodium borate system, showed different mobilities upon addition of 5 M urea to the system.
(20) The bottom of the trachea was lined with mucus simulants, gels prepared from locust bean gum cross-linked with sodium borate.
Boron
Definition:
(n.) A nonmetallic element occurring abundantly in borax. It is reduced with difficulty to the free state, when it can be obtained in several different forms; viz., as a substance of a deep olive color, in a semimetallic form, and in colorless quadratic crystals similar to the diamond in hardness and other properties. It occurs in nature also in boracite, datolite, tourmaline, and some other minerals. Atomic weight 10.9. Symbol B.
Example Sentences:
(1) The compound caused extensive clumping, of cells, which appeared not to be related to the ability of boronates to esterify to diols.
(2) Examples are p-boronophenylalanine or boronated porphyrius.
(3) Fractions from the boronate gel column or aliquots of NaIO4-treated cell extract are quantitated directly by the RIA.
(4) The second part of the paper describes a case where neodynium-iron-boron magnets were used to assist eruption of an unerupted, vertically impacted upper right canine.
(5) A neodymium iron boron magnet is attached to the unerupted tooth, and a second, larger magnet is incorporated in a removable appliance.
(6) The various boron compounds being investigated for NCT are evaluated on the basis of necessary minimum boron content in tumor.
(7) N-Allylation of a trimethoxybenzazepine followed by cleavage of the methyl ethers with boron tribromide was the preferred method.
(8) Because boronated phenylalanine has been demonstrated to be preferentially taken up by melanoma cells through the biosynthetic pathway for melanin, there is special interest in a trial of boron neutron capture therapy for metastatic melanoma in brain.
(9) After separation by thin-layer chromatography, the bands of the lipid classes studied were scraped off, transmethylated according to the boron trifluoride-methanol procedure, and the fatty acid methyl esters were extracted and analysed.
(10) However, at 1000 and 2000 ppm boron, male fertility was significantly reduced.
(11) A parameter of major importance is the minimum concentration of boron needed in tumor in order to produce improved results in cancer therapy.
(12) Boron-11 spectral intensities decreased in the living rat over a 25-h period.
(13) In some areas, wastewater is used for irrigation and crops grown under these conditions are generally confined to those relatively insensitive to boron toxicity.
(14) These data indicate that broilers grown on boric acid-treated litter do not consume enough boric acid to cause elevated boron levels in tissues.
(15) In the course of re-assessment of boron-neutron capture therapy (BNCT) for malignant brain tumors, fractionation of neutron irradiation has been proposed.
(16) Six-day exposures of the differentiated cells to a 1-mM dose of aluminum or boron yielded increases in tau protein immunoreactivity to the monoclonal antibodies Tau-1 and Alz-50.
(17) Recovery of the serine and threonine derivatives was improved by substituting boron trifluoride-diethyl etherate for trifluoroacetic acid in the thiazolinone cleavage reactions.
(18) Boron levels in the brain dropped about 6%-8% and were more diffusely distributed on the images obtained 30 minutes after BSH infusion.
(19) The boron derivatives also caused L-1210 DNA strand scission.
(20) Glycosylation was estimated using boronate affinity chromatography with the myosin dissolved in a pyrophosphate buffer, the glycosylated myosin being displaced with sorbitol.