Showing 1-21 of 21 results for "

379816

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A water-based synthesis of octahedral, decahedral, and icosahedral Pd nanocrystals.
Byungkwon Lim et al.
Angewandte Chemie (International ed. in English), 46(48), 9279-9282 (2007-10-31)
V A Tomilets et al.
Farmakologiia i toksikologiia, 44(1), 77-80 (1981-01-01)
A scheme has been devised that makes it possible to assess a specific mechanism of action of any histamine-releasing agent. The scheme suggests a switch off of different stages of histamine secretion--interaction of a histamine liberator with surface cell receptors...
Joris Muris et al.
Contact dermatitis, 58(1), 42-46 (2007-12-25)
In the last decades, palladium is widely used in dentistry. Allergic reactions to palladium are rarely diagnosed with patch testing, even when positive results would be expected. Palladium tends to cross-react with nickel, which should give rise to more positive...
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Malin Engfeldt et al.
Contact dermatitis, 65(6), 364-367 (2011-11-15)
L V Tat'ianenko et al.
Voprosy meditsinskoi khimii, 28(6), 126-131 (1982-11-01)
Mechanism of interaction between biologically active substances and membranes as well as and membrane-bound enzymes of two types: mitochondrial monoamine oxidase (MAO) from rat liver tissue and Ca2+, Mg+2-dependent ATPase from sarcoplasmic reticulum (SR) were studied. All the substances studied...
Joris Muris et al.
Contact dermatitis, 67(2), 94-100 (2012-04-03)
Exposure to palladium (Pd) may lead to clinical allergic reactions. With frequent nickel (Ni) exposure and cross-reactivity between Ni and Pd at the T cell recognition level, positive Pd reactions on patch testing are surprisingly uncommon. PdCl(2) is often used...
B L Iverson et al.
Nucleic acids research, 15(19), 7823-7830 (1987-10-12)
Reaction of DNA with K2PdCl4 at pH 2.0 followed by a piperidine workup produces specific cleavage at adenine (A) residues. Product analysis revealed the K2PdCl4 reaction involves selective depurination at adenine, affording an excision reaction analogous to the other chemical...
Variability in patch test reactivity over time, falsely indicating patch test sensitization, in a patient tested with palladium salts.
Malin Engfeldt et al.
Contact dermatitis, 67(2), 109-111 (2012-07-11)
J Muris et al.
Allergy, 64(8), 1152-1156 (2009-02-12)
For patch testing, replacement of the commonly used palladium dichloride (PdCl2) by sodium tetrachloropalladate (Na2[PdCl4]) was recently demonstrated to improve test accuracy and show a significant correlation with nickel (Ni), supporting the concept of cross-reactivity between Pd and Ni. A...
M J McLean et al.
Journal of molecular recognition : JMR, 1(3), 138-151 (1988-06-01)
Five different DNA fragments have been treated with a range of conformationally sensitive reagents in an effort to probe structural changes in DNA associated with binding of the bis-intercalating antibiotic echinomycin. For each probe, the intensity and pattern of its...
Naomi Winckelmans et al.
The journal of physical chemistry. C, Nanomaterials and interfaces, 122(25), 13522-13528 (2018-07-10)
Three dimensional (3D) characterization of structural defects in nanoparticles by transmission electron microscopy is far from straightforward. We propose the use of a dose-efficient approach, so-called multimode tomography, during which tilt series of low and high angle annular dark field...
Charles L Gaworski et al.
Inhalation toxicology, 20(2), 167-182 (2008-02-01)
The use of a palladium (Pd) catalyst has been proposed to promote combustion of tobacco, thereby reducing concentrations of certain toxic components of smoke, including polyaromatic hydrocarbons (PAHs). In the present work, toxicological comparisons were made using experimental cigarettes containing...
R E Biagini et al.
Toxicology letters, 12(2-3), 165-170 (1982-07-01)
The effects of Na2PdCl4 were studied on isolated rat liver mitochondrial electron transport and oxidative phosphorylation in vitro. Significant reductions in ADP-stimulated respiration were observed with increasing Na2PdCl4 concentrations with both succinate and NADH-linked substrate oxidations. Concentration necessary for half-maximal...
T N Semenets et al.
Radiatsionnaia biologiia, radioecologiia, 37(6), 892-895 (1998-02-19)
Efasol and potassium tetrachloropalladate being injected into mice prior to irradiation with a dose of 150 sGy increase the colony forming activity of animals bone marrow cells transplanted in lethally irradiated recipient mice. The palladium presence in such compounds is...
G Pneumatikakis et al.
Journal of inorganic biochemistry, 37(1), 17-28 (1989-09-01)
The interactions of potassium tetrachloropalladate(II) with the B6 vitamins pyridoxal, pyridoxine, and pyridoxamine in 1:1 molar ratio have been studied. From DMF solutions, the ionic trichloro (pyridoxal or pyridoxine) palladates(II) were isolated. Pyridoxamine, on the other hand, in aqueous solutions...
[Spectrophotometric analysis of D-penicillamine and mercaptopropionylglycine in pharmaceutical formulations with ammonium tetrachloropalladate].
M A Raggi et al.
Bollettino chimico farmaceutico, 125(8), 295-297 (1986-08-01)
Miroslav Slouf et al.
Colloids and surfaces. B, Biointerfaces, 100, 205-208 (2012-07-10)
Stable Pd nanocubes (PdNC) with the average size ~15 nm were prepared by the controlled reduction of sodium tetrachloropalladate with ascorbic acid in water, in the presence of polyvinylpyrrolidone and potassium bromide. Morphology of the particles was characterized by transmission...
Mathis, M. et al.
Chemistry of Materials, 10, 3568-3568 (1998)
Hosny Ibrahim et al.
Analytical sciences : the international journal of the Japan Society for Analytical Chemistry, 23(5), 573-579 (2007-05-15)
A comparative study was made between developed chemically modified carbon paste electrodes and PVC membrane electrodes for the cationic surfactant cetyltrimethylammonium bromide (CTAB). The carbon paste electrode modified with cetyltrimethylammonium-tetrachloropalladate(II) (CTA-TClP) provides a more sensitive and stable device than that...
Emmanuel Tourneux et al.
Molecules (Basel, Switzerland), 12(8), 1940-1949 (2007-10-26)
This paper reports the preparation, characterization and the crystal X-ray structures of metal-containing ionic liquid complexes based on chiral pyridinium cations and tetrachloropalladate (II) [PdCl4]2-.
Cecilia Tillman et al.
Contact dermatitis, 69(5), 288-295 (2013-08-06)
Since the EU Nickel Directive came into force, concern has been raised that palladium may increasingly replace nickel in alloys used in jewellery and dentistry, and that it may cause as many allergy problems as nickel. (i) To investigate the...