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Shigui Yuan et al.
Environmental science & technology, 42(16), 6092-6099 (2008-09-05)
Two different sulfonephthalein indicators, cresol red (CR) with a pKa of approximately 8.3 and bromothymol blue (BTB) with pKa of approximately 7.4, were tested for an analysis of freshwater over a broad range of pH and total alkalinity values. Measurements
Nicolas Bruffaerts et al.
PloS one, 10(7), e0132288-e0132288 (2015-07-15)
The only tuberculosis vaccine currently available, bacille Calmette-Guérin (BCG) is a poor inducer of CD8(+) T cells, which are particularly important for the control of latent tuberculosis and protection against reactivation. As the induction of strong CD8(+) T cell responses
[Fundamental studies on the measurement of urinary NAG and determination of the normal values for NAG activity in various age groups].
Y Iimura et al.
Rinsho byori. The Japanese journal of clinical pathology, 31(2), 179-184 (1983-02-01)
An internal indicator for alkaline denaturation of double-stranded DNA in dideoxy sequencing reactions.
B H Taylor et al.
BioTechniques, 14(4), 560-560 (1993-04-01)
Berthold Borucki et al.
Biochemistry, 41(31), 10026-10037 (2002-07-31)
We studied the kinetics of proton uptake and release by photoactive yellow protein (PYP) from Ectothiorhodospira halophila in wild type and the E46Q and E46A mutants by transient absorption spectroscopy with the pH-indicator dyes bromocresol purple or cresol red in
Mingming Zou et al.
Ultrasonics sonochemistry, 20(2), 685-695 (2012-11-17)
The interaction of Cresol Red derivatives (Cresol Red (o-Cresolsulfonphthalein), Cresol Red-DA (3,3'-Bis [N,N-di (carboxymethyl) aminomethyl]-o-cresolsulfonphthalein) and Cresol Red-DA-Fe(III) (3,3'-Bis [N,N-di (carboxymethyl) aminomethyl]-o-cresolsulfonphthalein-Ferrous(III)) with bovine serum albumin (BSA) were studied by the combination of ultraviolet spectroscopy, circular dichroism (CD) spectroscopy, fluorescence
Paula C A Jerónimo et al.
The Analyst, 130(8), 1190-1197 (2005-07-16)
An optical biosensor based on immobilised carbonic anhydrase and its application to the determination of the anti-glaucoma agent acetazolamide by enzyme inhibition measurements, is described. The enzyme and a pH indicator dye, cresol red, were physically immobilised in overlapped sol-gel
T D O'Leary et al.
Annals of clinical biochemistry, 20(Pt 3), 153-156 (1983-05-01)
A procedure is described for monitoring the temperature in the reaction cuvettes of analytical systems that use photometers. The method employs the temperature-dependent change in absorbance of solutions of either 3,5-dinitrosalicylic acid or cresol red. The procedure is simple to
Martin Gallenberger et al.
Experimental eye research, 128, 83-91 (2014-09-28)
There is an ongoing controversy regarding the role of WDR36 sequence variants in the pathogenesis of primary open-angle glaucoma (POAG). WDR36 is a nucleolar protein involved in the maturation of 18S rRNA. The function of WDR36 is essential as homozygous
M Swati et al.
Analytica chimica acta, 676(1-2), 68-74 (2010-08-31)
An optical biosensing scheme based on urease encapsulated calcium alginate microspheres which are coated with polyelectrolyte nanofilms predominantly composed of cresol red (CR) dye is demonstrated in this paper. The dye molecules within the nanofilms are deposited via the layer-by-layer
E Hodges et al.
Molecular pathology : MP, 50(3), 164-166 (1997-06-01)
Diagnostic immunoglobulin (Ig) polymerase chain reaction (PCR) clonality analyses need to be simple, reproducible, and rapid. Sucrose and cresol red (gel loading buffer reagents) were added to a routine IgH PCR reaction mix to obviate the need for adding gel
K Horie et al.
Analytical biochemistry, 137(1), 80-87 (1984-02-01)
A highly sensitive quantitative method was developed to detect protons released or taken up upon ligand binding. A small change in pH due to proton release or uptake was detected by measuring the difference in the absorbance of a pH
Bahram Hemmateenejad et al.
The Analyst, 135(7), 1747-1758 (2010-04-28)
This paper addresses the solution of peak overlapping, as a fundamental problem in TLC, by multivariate analysis of the images recorded by a digital camera. We report the results of our study on the application of multivariate image analysis (MIA)
P K Pal et al.
Indian journal of biochemistry & biophysics, 30(4), 214-217 (1993-08-01)
Numerous stereochemical and kinetic investigations on the reaction pathway of creatine kinase (CK) suggest that this enzymic reaction proceeds via direct in-line transfer of phosphate between participating substrates and to date there has been no chemical evidence for any plausible
F Ahmadi et al.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 67(2), 412-419 (2006-09-09)
The effects of cationic cetyltrimethylammonium bromide (CTAB), hexadecylpyridinum chloride (HDPC) and anionic sodium dodecylsulphate (SDS) surfactants on dissociation constants and transition intervals of methyl red, methyl orange and cresol red were studied spectrophotometrically. The results show that all studied indicators
Bao-sheng Liu et al.
Guang pu xue yu guang pu fen xi = Guang pu, 23(3), 539-542 (2003-09-05)
The reactions between HSA and acidic phenolsulfonphthaleins, including phenol red, cresol red, chlorophenol red, bromocresol purple and m-cresol purple, have been investigated by fluorescence spectrometry. The experiments showed that all of the selected acidic phenolsulfonphthaleins strongly quenched the fluorescence produced
An improved method for the detection and preservation of urease activity in polyacrylamide gels.
M B Shaik-M et al.
Analytical biochemistry, 103(1), 140-143 (1980-03-15)
R E Mensink et al.
European journal of biochemistry, 208(2), 289-294 (1992-09-01)
The pre-steady-state ATPase activity of nitrogenase has been reinvestigated. The exceptionally high burst in the hydrolysis of MgATP by the nitrogenase from Azotobacter vinelandii communicated by Cordewener et al. (1987) [Cordewener J., ten Asbroek A., Wassink H., Eady R. R.
R Schubert
Zentralblatt fur Bakteriologie, Mikrobiologie und Hygiene. Serie B, Umwelthygiene, Krankenhaushygiene, Arbeitshygiene, praventive Medizin, 187(3), 266-268 (1989-02-01)
A new medium is described for the isolation of P. aeruginosa organisms which have been damaged by chlorination. This medium utilises the fact that with arginine. P. aeruginosa produces a strongly alkaline reaction resulting in an easily identified colour change
Rutendo B L Zinyama-Gutsire et al.
PloS one, 10(4), e0122659-e0122659 (2015-04-02)
Polymorphism in the MBL2 gene lead to MBL deficiency, which has been shown to increase susceptibility to various bacterial, viral and parasitic infections. We assessed role of MBL deficiency in HIV-1 and schistosoma infections in Zimbabwean adults enrolled in the
Ewa Iwaszko et al.
Journal of photochemistry and photobiology. B, Biology, 74(1), 13-21 (2004-03-27)
The effect of light on proton transport across lipid membranes of small unilamellar liposomes containing incorporated major light-harvesting pigment-protein complex of Photosystem II (LHCII) has been studied with the application of pH-sensitive dyes entrapped inside vesicles. Proton permeability coefficient for
H S Van Walraven et al.
European journal of biochemistry, 144(3), 555-561 (1984-11-02)
ATP hydrolysis-induced proton translocation and electric potential generation have been studied in ATPase proteoliposomes by means of various optical probes. The proteoliposomes consisted of reconstituted ATPase complex and native lipid mixture isolated from the thermophilic cyanobacterium Synechococcus 6716 [Van Walraven
Maurizio Caselli et al.
Annali di chimica, 92(5-6), 501-512 (2002-07-20)
The pKa of 3',3",5',5"tetrabromo-m-cresolsulfonephtalein (Bromocresol Green) and o-cresolsulphonephtalein (Cresol Red) was spectrophotometrically measured in a water/AOT/isooctane microemulsion in the presence of a series of buffers carrying different charges at different water/surfactant ratios. Extended Principal Component Analysis was used for a
Gui-zhi Zhao et al.
Guang pu xue yu guang pu fen xi = Guang pu, 23(1), 157-159 (2003-08-28)
A spectrophotometric method for the determination of Roxithromycin has been developed based on the charge transfer reaction between Roxithromycin as donor and cresol red as acceptor. The conditions of reaction have been studied. The reaction time, reaction temperature, reaction medium
K Elamrani et al.
Biochimica et biophysica acta, 727(1), 22-30 (1983-01-05)
The kinetics of H+/OH- diffusion across dimyristoyl phosphatidic acid bilayer membranes was measured by following the absorbance of the pH-sensitive indicator Cresol red (o-cresolsulfonphthalein) entrapped in single lamellar vesicles after rapidly changing the external pH in a stopped-flow apparatus. The
H N Nigg et al.
Journal of economic entomology, 97(6), 1850-1860 (2005-01-26)
We needed a technique to compare the consumption of baits by individual Carribbean fruit fly, Anastrepha suspensa (Loew). By improving consumption and determining individual dose, we could lower pesticide concentration while retaining bait/pesticide efficacy and potentially reduce the environmental impact
C K S Chui et al.
Journal of clinical microbiology, 53(9), 2942-2950 (2015-07-03)
Persons with hepatitis C virus (HCV) genotype 1a (GT1a) infections harboring a baseline Q80K polymorphism in nonstructural protein 3 (NS3) have a reduced virologic response to simeprevir in combination with pegylated interferon-alfa and ribavirin. We aimed to develop, validate, and
Z Yu et al.
Protein and peptide letters, 9(6), 545-552 (2003-01-30)
A direct and continuous spectrophotometric method was developed for determining arginine kinase (phosphoarginine synthesis) activity. Protons are produced during the phosphoarginine synthesis course, so adding the complex acid-base indicator to this solution and monitoring the decrease of absorbance of the
K Schilling et al.
Clinical chemistry, 39(2), 251-256 (1993-02-01)
If buffer/indicator systems are used as optical thermometers in multicuvettes, the temperature resolution is limited by errors of optical measurements produced mainly by variations of pathlength and blank transmittance of the wells. Theoretical and practical approaches show that, in multicuvettes
Atsushi Seki et al.
Analytica chimica acta, 582(1), 154-157 (2007-03-28)
Novel spectroscopic sensor based on a hetero-core structured fiber optic is described in this paper. The hetero-core structured fiber optic consists of multi mode fibers and a short piece of single mode fiber which was inserted in the multi mode
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