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Showing 1-29 of 29 results for "83979" within Papers
Yucheng Jiang et al.
Biophysical chemistry, 118(1), 25-30 (2005-07-26)
Electromotive force (emf) of the chemical cell without liquid-junction K-ISE | RbCl/CsCl ( m(E)) | ISE-Cl and K-ISE | RbCl/CsCl (m(E)), amide (m(N)) | ISE-Cl, have been measured at 298.15 K, where m(E)=(0.005 to 0.5) mol kg(-1) and m(N)= (0.05
Anton Granzhan et al.
Journal of the American Chemical Society, 133(18), 7106-7115 (2011-04-19)
A modular approach for the synthesis of cage structures is described. Reactions of [(arene)RuCl(2)](2) [arene = p-cymene, 1,3,5-C(6)H(3)Me(3), 1,3,5-C(6)H(3)(i-Pr)(3)] with formyl-substituted 3-hydroxy-2-pyridone ligands provide trinuclear metallamacrocycles with pendant aldehyde groups. Subsequent condensation reactions with di- and triamines give molecular cages
Otília Sarquis et al.
Memorias do Instituto Oswaldo Cruz, 106(4), 385-389 (2011-07-09)
In order to mark Triatoma brasiliensis, the vector of Chagas disease in Brazil, two chemical compounds, rubidium chloride (RbCl) and chromium chloride (CrCl₃), were tested. First, 199 N2-N5 nymphs were fed on blood with 0.025M RbCl. Rb marker positivity ranged
Grazyna Bystrzejewska-Piotrowska et al.
Journal of environmental radioactivity, 99(7), 1185-1191 (2008-03-18)
Ex vitro cultures of Pleurotus eryngii were carried out under controlled conditions using sterile medium composed of barley seeds. The influence of alkali and alkaline earth element salts (CsCl, KCl, NaCl, RbCl, and CaCl(2)) and tetraethylammonium chloride on incorporation of
Balasundaresan Dhakshnamoorthy et al.
Journal of molecular biology, 396(2), 293-300 (2009-11-26)
The OmpF porin from the Escherichia coli outer membrane folds into a trimer of beta-barrels, each forming a wide aqueous pore allowing the passage of ions and small solutes. A long loop (L3) carrying multiple acidic residues folds into the
M L Główka et al.
Acta crystallographica. Section D, Biological crystallography, 61(Pt 4), 433-441 (2005-04-05)
Gramicidin D (gD) is a naturally occurring ionophoric antibiotic that forms membrane channels specific for monovalent cations. The crystal structure of the RbCl complex of gD has been determined at 1.14 A resolution from low-temperature (100 K) synchrotron-radiation data with
C Alliot et al.
Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine, 74, 56-60 (2013-01-31)
(82)Rb is a positron-emitting radionuclide widely used in nuclear cardiology. One great advantage is its availability through a generator loaded with (82)Sr. (82)Sr can be produced in a high energy cyclotron by irradiating rubidium chloride target with proton beam. In
Takuro Hayashi et al.
Acta crystallographica. Section F, Structural biology and crystallization communications, 65(Pt 10), 1007-1010 (2009-10-24)
Small heat-shock proteins (sHsps) bind and stabilize proteins denatured by heat or other stresses in order to prevent unfavourable protein aggregation. StHsp14.0 is an sHsp found in the acidothermophilic archaeon Sulfolobus tokodaii. A variant of StHsp14.0 was crystallized by the
Eiichi Takayama et al.
Journal of molecular and cellular cardiology, 37(2), 483-496 (2004-07-28)
We previously demonstrated that pinacidil does not affect Na(+)(i) accumulation, cellular energy depletion, or acidosis during myocardial ischemia, but dramatically improves the cationic/energetic status during reperfusion. We investigated the role of this latter effect in K(ATP) channel-induced cardioprotection. Employing (23)Na
Amer Alam et al.
Nature structural & molecular biology, 16(1), 30-34 (2008-12-23)
We report the crystal structure of the nonselective cation channel NaK from Bacillus cereus at a resolution of 1.6 A. The structure reveals the intracellular gate in an open state, as opposed to the closed form reported previously, making NaK
Ferenc Horkay et al.
The Journal of chemical physics, 125(23), 234904-234904 (2006-12-28)
The distribution of counterions in solutions of high molecular mass hyaluronic acid, in near-physiological conditions where mono- and divalent ions are simultaneously present, is studied by small angle neutron scattering and anomalous small angle x-ray scattering. The solutions contain either
Christian Wolff et al.
European journal of pharmacology, 518(1), 10-17 (2005-07-16)
Linopirdine was developed as a cognitive enhancing molecule and demonstrated to specifically block the potassium current generated by the brain specific KCNQ2-KCNQ3 proteins (M-channel). In this study we investigated the relevance of [(3)H]linopirdine binding in rat brain extracts to the
Páraic Ó Cuív et al.
Scientific reports, 5, 13282-13282 (2015-08-22)
Metagenomics has rapidly advanced our inventory and appreciation of the genetic potential inherent to the gut microbiome. However it is widely accepted that two key constraints to further genetic dissection of the gut microbiota and host-microbe interactions have been our
F Stevens et al.
Physical chemistry chemical physics : PCCP, 7(2), 240-249 (2005-01-21)
An extensive level of theory study is performed on diatomic chalcogen defects in alkali halide lattices by density functional theory methods. A variety of exchange correlation functionals and basis sets are used for the calculation of electron paramagnetic resonance (EPR)
Christophe Danelon et al.
Biophysical chemistry, 104(3), 591-603 (2003-08-14)
Ion current through single outer membrane protein F (OmpF) trimers was recorded and compared to molecular dynamics simulation. Unidirectional insertion was revealed from the asymmetry in channel conductance. Single trimer conductance showed particularly high values at low symmetrical salt solution.
Yucheng Jiang et al.
Carbohydrate research, 341(2), 262-269 (2005-12-07)
The Gibbs energy interaction parameters of RbCl with some monosaccharides (D-glucose, D-galactose, D-xylose, and D-arabinose) in water, g(ES), were obtained from electromotive force (emf) measurements of the electrochemical cell without liquid junction and containing two ion-selective electrodes (ISE): K-ISEmid R:RbCl(m(E))mid
Atsuko Ishikawa et al.
Biopharmaceutics & drug disposition, 31(8-9), 455-463 (2010-09-18)
The altered electrolyte handling of the choroid plexus was investigated in rats with acute renal failure (ARF) using lithium and rubidium as surrogate markers for sodium and potassium, respectively. Firstly, the transport of these two markers from the plasma to
Rafael Maciel-de-Freitas et al.
Memorias do Instituto Oswaldo Cruz, 99(8), 823-827 (2005-03-12)
Rubidium chloride (RbCl) has been used for the study of vector biology and behavior, although the efficacy of marking, egg production, and survivorship of marked females have been poorly studied. Four concentrations of RbCl were tested, among which 0.025 M
Jörgen Rosenqvist et al.
Langmuir : the ACS journal of surfaces and colloids, 25(18), 10852-10862 (2009-08-14)
The acid-base properties of cassiterite (alpha-SnO2) surfaces at 10-50 degrees C were studied using potentiometric titrations of powder suspensions in aqueous NaCl and RbCl media. The proton sorption isotherms exhibited common intersection points in the pH range of 4.0-4.5 under
Olga Kinclova-Zimmermannova et al.
Microbiology (Reading, England), 153(Pt 8), 2603-2612 (2007-07-31)
The physiological role of Candida albicans Cnh1, a member of the Na+/H+ antiporter family, was characterized. Though CaCnh1p had broad substrate specificity and mediated efflux of at least four alkali metal cations upon heterologous expression in Saccharomyces cerevisiae, its presence
Analogs of MK-499 are differentially affected by a mutation in the S6 domain of the hERG K+ channel.
Jerzy Karczewski et al.
Biochemical pharmacology, 77(10), 1602-1611 (2009-05-12)
Drug-induced long QT syndrome has been principally ascribed to block of the cardiac hERG K(+) channel. Methanesulfonanilides, such as MK-499, E-4031 and dofetilide, are potent hERG antagonists that likely bind along the S6 helix within the inner vestibule of the
Yui-May Hsiao et al.
Nuclear medicine and biology, 36(1), 39-45 (2009-02-03)
In locations that lack nearby cyclotron facilities for radionuclide production, generator-based (68)Ga radiopharmaceuticals might have clinical utility for positron emission tomography (PET) studies of myocardial perfusion and other physiological processes. The lipophilic and monocationic (67)Ga-labeled gallium chelates of five novel
Francisco Rubio et al.
Physiologia plantarum, 134(4), 598-608 (2008-11-13)
The relative contribution of the high-affinity K(+) transporter AtHAK5 and the inward rectifier K(+) channel AtAKT1 to K(+) uptake in the high-affinity range of concentrations was studied in Arabidopsis thaliana ecotype Columbia (Col-0). The results obtained with wild-type lines, with
Po-Jung Jimmy Huang et al.
Analytical chemistry, 87(13), 6890-6895 (2015-06-11)
Mercury is a highly toxic heavy metal, and detection of Hg(2+) by biosensors has attracted extensive research interest in the past decade. In particular, a number of DNA-based sensing strategies have been developed. Well-known examples include thymine-Hg(2+) interactions and Hg(2+)-activated
R Naga Amrutha et al.
Plant cell reports, 26(9), 1647-1662 (2007-04-25)
Callus cultures from salt tolerant (CSR-10) and susceptible (Swarnadhan) varieties of Oryza sativa L. were established in Murashige and Skoog's (MS) medium containing lethal concentrations (50 mM) of rubidium chloride (RbCl) as a selective agent. While 95-100% cells were viable
Bertha Michel et al.
Yeast (Chichester, England), 23(8), 581-589 (2006-07-11)
In S. cerevisiae, K+ transport relies principally on two structurally related membrane proteins, known as Trk1p and Trk2p. Direct involvement in cation movements has been demonstrated for Trk1p, which is a high-affinity K+ transporter. Initially described as a low-affinity K+
Alex R Hill et al.
European journal of mass spectrometry (Chichester, England), 21(3), 265-274 (2015-08-27)
The complexation of triacetone triperoxide (TATP) with a range of alkali metals has been studied by electrospray ionisation-mass spectrometry yield [M+Cat](+) ions for all of the alkali metals. The formation of [2TATP+Li+LiX](+) (X = Br, Cl) sandwich complexes was also
K Dash et al.
Analytica chimica acta, 584(1), 210-214 (2007-03-28)
The use of boric acid as a modifier for the determination of trace amount of rubidium in high purity cesium chloride matrix by electrothermal atomic absorption is described. It was found that the negative influence of the chloride matrix could
Michael G Stabin
Health physics, 99(6), 811-813 (2010-11-12)
Three models for the biodistribution and dosimetry of 82Rb-chloride were reviewed and a proposal is made for the best dosimetry for this agent to be adopted. Data from three proposed biokinetic models for 82Rb-chloride were used to calculate dose estimates
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