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显示 1-30 共 37 条结果 关于 "520853" 范围 论文
Z T Lalowicz et al.
Solid state nuclear magnetic resonance, 22(2-3), 373-393 (2002-12-10)
A detailed description of the diverse mobility of the ND4+ ions in the low-temperature ordered phase of (ND4)2PtCl4 is developed on the basis of single-crystal deuteron NMR spectra and site-selective T1 measurements. The ordered phase of (ND4)2PtCl4 consists of two
Joseph F Fowler et al.
Dermatitis : contact, atopic, occupational, drug, 19(3), 146-147 (2008-07-17)
Although contact allergy to some metals is common, patch testing for allergy to platinum is rarely performed. To determine the prevalence of positive patch-test reactions to platinum in an unselected consecutive group of patients presenting for diagnostic patch testing. Unselected
G Wanner et al.
Chromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology, 3(6), 368-374 (1995-09-01)
We describe a DNA-specific staining procedure, using a blue platinum organic dye, which allows DNA imaging of chromosomes by detection of back-scattered electrons in the scanning electron microscope. DNA distribution is visualized within chromosomal details of the centromeric and satellite
Carbon-Defect-Driven Electroless Deposition of Pt Atomic Clusters for Highly Efficient Hydrogen Evolution
Qingqing Cheng, et al.
Journal of the American Chemical Society, 142, 5594-5601 (2020)
B C Chu et al.
Nucleic acids research, 20(10), 2497-2502 (1992-05-25)
We have prepared phosphorothioate-containing cyclic oligodeoxynucleotides that fold into 'dumbbells' containing CRE and TRE sequences, the binding sequences for the CREB and JUN proteins, respectively. Six phosphorothioate residues were introduced into each of the recognition sequences. K2PtCl4 crosslinks CRE to
Valentina Ljubomirova et al.
Analytica chimica acta, 614(2), 119-126 (2008-04-19)
A method for the separation of tetrachloroplatinate PtCl(4)(2-), and hexachloroplatinate PtCl(6)(2-), by solid-phase extraction, using a Dowex 1x10 anion exchange resin is proposed. The sequential elution and separation of PtCl(4)(2-), and PtCl(6)(2-) is achieved using selective complexing agents. The eluates
Sobhan Roy et al.
Journal of structural biology, 166(1), 79-87 (2009-03-06)
Indian tasar silk is produced by a wild insect called Antheraea mylitta. Insects do not have any antigen-antibody mediated immune system like vertebrates but they produce a wide variety of effector proteins and peptides possessing potent antifungal and antibacterial activity
L Trynda et al.
General physiology and biophysics, 17(1), 25-36 (1998-07-24)
The interaction of platinum complexes with bovine heart pyruvate kinase (PK) was studied by absorption, CD, fluorescence spectroscopy and enzymic activity test. Our results showed that activity of PK was reduced by cis-DDP and potassium tetrachloroplatinate in a time-and concentration
Francisco Tarazona-Vasquez et al.
The journal of physical chemistry. A, 111(5), 932-944 (2007-02-03)
Density functional theory is used to investigate the structure and energetics of the tetrachloroplatinate anion and its hydrolysis products at several degrees of hydration, as well as those of outer dendrimer pockets hosting such species. The number of water molecules
Xiaojun Sun et al.
Nanoscale, 9(39), 15107-15114 (2017-10-04)
We report a facile synthesis of Pt-Ag nanocages with walls thinner than 2 nm by depositing a few atomic layers of Pt as conformal shells on Ag nanocubes and then selectively removing the Ag template via wet etching. In a
Akon Higuchi et al.
Analytical chemistry, 80(17), 6580-6586 (2008-07-31)
DNA aptamers carrying Pt nanoparticles were prepared by the reaction of DNA aptamers (without functionalization with biotin, thiol, or other reactive groups) with K 2[PtCl 4] in solution at 60-90 degrees C. The DNA-Pt complexes possessed peroxidase enzymatic activity while
Kevin Chan et al.
Chemistry (Weinheim an der Bergstrasse, Germany), 21(46), 16434-16447 (2015-10-03)
Water-soluble cationic alkynylplatinum(II) 2,6-bis(benzimidazol-2'-yl)pyridine (bzimpy) complexes have been demonstrated to undergo supramolecular assembly with anionic polyelectrolytes in aqueous buffer solution. Metal-metal-to-ligand charge transfer (MMLCT) absorptions and triplet MMLCT ((3) MMLCT) emissions have been found in UV/Vis absorption and emission spectra
P G van Rhee et al.
Nature communications, 5, 5010-5010 (2014-09-25)
Stomatocytes are polymersomes with an infolded bowl-shaped architecture. This internal cavity is connected to the outside environment via a small 'mouth' region. Stomatocytes are assembled from diamagnetic amphiphilic block-copolymers with a highly anisotropic magnetic susceptibility, which permits to magnetically align
Yan Feng et al.
Scientific reports, 4, 6204-6204 (2014-08-28)
The integration of different components into a hybrid nanosystem for the utilization of the synergistic effects is an effective way to design the electrocatalysts. Herein, we demonstrate a hybrid strategy to enhance the electrocatalytic property of hollow structured Pt nanoparticles
Seong Ji Ye et al.
Chemistry (Weinheim an der Bergstrasse, Germany), 23(67), 17136-17143 (2017-10-06)
A new and simple approach is reported for the synthesis of uniformly dispersed PtPd alloy nanocatalysts supported on graphene nanoplatelets (GNPs) (PtPd-GNPs) through the introduction of bifunctional materials, which can modify the GNP surface and simultaneously reduce metal ions. With
Selective Methane Oxidation Catalyzed by Platinum Salts in Oleum at Turnover Frequencies of Large-Scale Industrial Processes
Tobias Zimmermann, et al.
Journal of the American Chemical Society, 138, 12395-12400 (2016)
Polymeric micelle assembly for the smart synthesis of mesoporous platinum nanospheres with tunable pore sizes
Yunqi Li, et al.
Angewandte Chemie (International Edition in English), 54, 11073-11077 (2015)
Masatoshi Watabe et al.
Journal of inorganic biochemistry, 97(2), 240-248 (2003-09-27)
The preparation of platinum(II) complexes containing L-serine using K(2)[PtCl(4)] and KI as raw materials was undertaken. The cis-trans isomer ratio of the complexes in the reaction mixture differed significantly depending on whether KI was present or absent in the reaction
H C Schuppe et al.
International archives of allergy and immunology, 112(2), 125-132 (1997-02-01)
The sensitizing properties of different complex salts of platinum were defined in vivo by means of the popliteal lymph node (PLN) assay in mice. Hexa- and tetrachloroplatinates were confirmed to be highly immunogenic, inducing vigorous primary immune responses in the
A case of contact hypersensitivity to platinum salts.
E Dastychová et al.
Contact dermatitis, 43(4), 226-226 (2000-09-30)
B C Chu et al.
Nucleic acids research, 18(17), 5163-5171 (1990-09-11)
We have investigated the efficiency with which PtII complexes cross-link phosphorothioates of oligonucleotides to complementary DNA targets. The A and G residues 2-5 bases downstream from the 5'-phosphorothioate group are preferred sites for cross-linking. Replacement of residues in this part
M Becker et al.
Journal of magnetic resonance (San Diego, Calif. : 1997), 133(1), 115-122 (1998-07-09)
The anticancer drug carboplatin has been monitored in rats during treatment by means of in vivo 195Pt NMR spectroscopy at 2.0 T. The purpose of the study was to assess local disposition kinetics in intact tissue following subcutaneous injection of
Jovita R Tauro et al.
Journal of biomaterials science. Polymer edition, 16(10), 1233-1244 (2005-11-05)
The objective of this study was to synthesize and characterize particles as a drug-delivery platform for gliomas, a highly advanced and invasive stage of brain tumor with poor prognosis. Poly(aminoethyl methacrylate-co-methyl methacrylate) particles were prepared by suspension polymerization and poly(aminoethyl
Joanna Arkusz et al.
Immunopharmacology and immunotoxicology, 32(1), 37-46 (2009-08-26)
Platinum salts, known occupational respiratory sensitizers, may also induce contact hypersensitivity in animal models. The aim of this study was to determine the effect of potassium tetrachloroplatinate (TCPP) on in vitro cultured human monocyte-derived dendritic cells (MoDCs) and to compare
L Trynda et al.
Journal of inorganic biochemistry, 53(4), 249-260 (1994-03-01)
Absorption, CD, gel-filtration chromatography, and immunological tests were used to evaluate the interactions of K2PtCl4 with human serum albumin. Multidentate coordination of Pt(II) to HSA causes distinct variations in the protein conformation including a considerable decrease of the helical structure.
Francisco Tarazona-Vasquez et al.
The journal of physical chemistry. A, 111(5), 945-953 (2007-02-03)
Density functional theory is used to investigate the complexation ability of dendrimer outer pockets--in both tertiary amine protonated and unprotonated scenarios--toward molecular guests, particularly tetrachloroplatinate(II) and its mono- and diaquated derivatives as well as competing counterions. The effect of the
Qi-Pin Qin et al.
European journal of medicinal chemistry, 89, 77-87 (2014-12-03)
A new platinum(II) complex of [Pt(II)(L) (pn)]Cl·2H2O (1) (pn = 1,3-propanediamine) with 2-(4-methoxy-phenyl)imidazo [4,5-f]-[1,10]phenanthrolin (H-L) was synthesized and characterized. In complex 1, the platinum adopts a four-coordinated square planar geometry. Complex 1 exhibited selective cytotoxicity against NCI-H460, BEL-7402, SK-OV-3, SK-OV-3/DDP and HeLa
Laila Arzuman et al.
Anticancer research, 35(5), 2783-2794 (2015-05-13)
With the idea that platinum compounds that bind with DNA differently than cisplatin may be better-able to overcome platinum resistance in ovarian tumor, the monofunctional platinum complex tris(imidazo(1,2-α)pyridine) chloroplatinum(II) chloride (coded as LH6) has been synthesized and investigated for its
Alkyl chain functionalised, cyclometalated platinum(II) complexes: Syntheses, luminescence properties and X-ray crystal structure
Juliette A. Lowe, et al.
Journal of Organometallic Chemistry, 805, 87-93 (2016)
E Thanasias et al.
Advances in experimental medicine and biology, 755, 47-53 (2012-07-25)
Allergic immediate-type reactions by halogenated compounds of platinum (Pt) (platinum salts) have been described in workers in precious metal refineries and catalyst productions. In both industries there are exposures to many different Pt compounds. It is believed that the most
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