Showing 1-30 of 50 results for "


Kodomari, M.; Satoh, H.; Yoshitomi, S.,
Bulletin of the Chemical Society of Japan, 61, 4149-4149 (1988)
Angelina Lo Giudice et al.
Ecotoxicology (London, England), 22(2), 240-250 (2012-11-28)
The response of bacterial isolates from Antarctic sediments to polychlorinated biphenyls (Aroclor 1242 mixture), heavy metal salts (cadmium, copper, mercury and zinc) and antibiotics (ampicillin, chloramphenicol, kanamycin and streptomycin) was investigated. Overall, the ability to growth in the presence of...
Jingchuan Dang et al.
Water science and technology : a journal of the International Association on Water Pollution Research, 66(4), 799-803 (2012-07-07)
In this study, a three-bore polyethersulfone (PES) hollow fiber ultrafiltration (UF) membrane with antibacterial properties was prepared by phase inversion, using PES as the membrane material, N,N-dimethylacetamide (DMAC) as solvent, polyvinylpyrrolidone (PVP) and CuCl(2) as additives. The effect of CuCl(2)...
Szabolcs Gergely et al.
Oxidative medicine and cellular longevity, 2015, 178513-178513 (2015-07-03)
Antracyclines are effective antitumor agents. One of the most commonly used antracyclines is doxorubicin, which can be successfully used to treat a diverse spectrum of tumors. Application of these drugs is limited by their cardiotoxic effect, which is determined by...
Po-Yuan Chen et al.
Organic letters, 14(18), 4930-4933 (2012-09-01)
A novel, concise and efficient synthesis of substituted isocoumarins is disclosed. o-Allylbenzaldehydes prepared from isovanillin were mediated by PdCl(2)-CuCl(2) in water to undergo a domino reaction sequence, including 6-exo-trig cyclization, the addition of water, the elimination of PdHCl, the isomerization...
Eva Hrabárová et al.
Chemistry & biodiversity, 9(2), 309-317 (2012-02-22)
Based on our previous findings, the present study has focused on free-radical-mediated degradation of the synovial biopolymer hyaluronan. The degradation was induced in vitro by the Weissberger's system comprising ascorbate plus cupric ions in the presence of oxygen, representing a...
Wojciech Ostrowski et al.
European journal of mass spectrometry (Chichester, England), 18(1), 43-50 (2012-07-17)
Solutions containing diclofenac (M) and a copper salt [CuCl2, Cu(ClO4)2, Cu(NO3)2, CuSO4) were analysed by electrospray ionisation mass spectrometry (ESI-MS). Because of the cation-pi interactions in diclofenac-Cu(II) complexes, the diclofenac molecular ion M+* at m/z 295 was formed. It was...
Salwa A Ahmed et al.
Analytical sciences : the international journal of the Japan Society for Analytical Chemistry, 31(10), 1047-1054 (2015-10-16)
The use of a microwave assisted solvent-free technique for silica coating of iron magnetic nanoparticles (Fe3O4-MNPs) and their functionalization with three aliphatic diamines: 1,2-ethylenediamine (1,2EDA), 1,5-pentanediamine (1,5PDA) and 1.8-octanediamine (1,8-ODA), were successfully achieved in a very short time. Only 60...
Hellinida Thomadaki et al.
Journal of medicinal chemistry, 51(13), 3713-3719 (2008-06-06)
We studied the antitumor properties of the dinuclear copper(II) complex of l-carnitine [Cu 2( l-carnitine) 2Cl 2(H 2O) 2]Cl 2, as well as those of l-carnitine and copper chloride dihydrate, in human leukemic cells. The complex was synthesized and characterized...
Kevser Sözgen Başkan et al.
Talanta, 147, 162-168 (2015-11-26)
As the concentration of reducing sugars (RS) is controlled by European legislation for certain specific food and beverages, a simple and sensitive spectrophotometric method for the determination of RS in various food products is proposed. The method is based on...
Butaek Lim et al.
Sensors (Basel, Switzerland), 15(8), 17977-17989 (2015-07-28)
We report a simple detection of protein kinase activity using Zn(II)-mediated fluorescent resonance energy transfer (FRET) between quantum dots (QDs) and dye-tethered peptides. With neither complex chemical ligands nor surface modification of QDs, Zn(II) was the only metal ion that...
Johnson J Liu et al.
Biochemical pharmacology, 85(2), 207-215 (2012-11-06)
Dorsal root ganglion (DRG) neurons are affected by platinum-induced neurotoxicity and neurodegenerative processes associated with disturbed copper homeostasis and transport. This study aimed to understand the role of copper transporter 1 (Ctr1) in the uptake and toxicity of copper and...
Viktória Jószai et al.
Journal of inorganic biochemistry, 112, 17-24 (2012-05-01)
Mixed metal copper(II)-nickel(II) and copper(II)-zinc(II) complexes of four peptide fragments of human prion protein have been studied by potentiometric, UV-vis and circular dichroism spectroscopic techniques. One peptide contained three histidyl residues: HuPrP(84-114) with H85 inside and H96, H111 outside the...
Bin Wu et al.
Carbohydrate research, 351, 68-73 (2012-03-01)
Two new glucoside esters 1 and 2 were produced as stress metabolites in the fresh leaves of Portulaca oleracea, in response to abiotic stress elicitation by CuCl(2). A new sugar ester (3) and two known compounds (4 and 5) were...
A convenient synthesis of alpha,beta-acetylenic ketones.
P Li et al.
The Journal of organic chemistry, 66(11), 4087-4090 (2001-05-26)
Lehao Liu et al.
Faraday discussions, 181, 383-401 (2015-05-23)
Current collectors are essential features of batteries and many other electronic devices being responsible for efficient charge transport to active electrode materials. Three-dimensional (3D), high surface area current collectors considerably improve the performance of cathodes and anodes in batteries, but...
Francesca Cima et al.
Chemosphere, 89(1), 19-29 (2012-05-01)
After the widespread ban of TBT, due to its severe impact on coastal biocoenoses, mainly related to its immunosuppressive effects on both invertebrates and vertebrates, alternative biocides such as Cu(I) salts and the triazine Irgarol 1051, the latter previously used...
Igor N Bakhmet et al.
Journal of environmental science and health. Part A, Toxic/hazardous substances & environmental engineering, 47(11), 1528-1535 (2012-06-19)
The heart rate and calpain activity of blue mussels Mytilus edulis from the sublittoral zone, exposed to different levels of water-borne copper and cadmium, was investigated in a long-term experiment. The content of cadmium and copper in the blue mussel...
Gang Zheng et al.
Toxicology letters, 225(1), 110-118 (2013-12-10)
The blood-cerebrospinal fluid barrier (BCB) plays a key role in maintaining copper (Cu) homeostasis in the brain. Cumulative evidences indicate that lead (Pb) exposure alters cerebral Cu homeostasis, which may underlie the development of neurodegenerative diseases. This study investigated the...
Iron(II)-catalyzed trifluoromethylation of potassium vinyltrifluoroborates.
Andrew T Parsons et al.
Angewandte Chemie (International ed. in English), 51(12), 2947-2950 (2012-02-14)
Xiaolian Sun et al.
ACS nano, 8(8), 8438-8446 (2014-07-16)
Using positron emission tomography (PET) imaging to monitor and quantitatively analyze the delivery and localization of Au nanomaterials (NMs), a widely used photothermal agent, is essential to optimize therapeutic protocols to achieve individualized medicine and avoid side effects. Coupling radiometals...
Kenji Funaki et al.
Organic letters, 14(24), 6186-6189 (2012-12-12)
Direct arylation of thiophenes and benzothiophenes with aryltrimethylsilanes was effectively catalyzed by PdCl(2)(MeCN)(2) in the presence of CuCl(2) as an oxidant. The reaction preferentially occurred at the β-position of both thiophenes and benzothiophenes.
Weiming Yuan et al.
Organic & biomolecular chemistry, 10(36), 7266-7268 (2012-08-09)
An efficient and practical copper-catalyzed highly regio- and stereoselective borylcupration of internal alkynes with bis(pinacolato)diboron using a catalytic amount of K(2)CO(3) as base producing Z-alkenylboron compounds has been demonstrated by applying the ligand effect: commercially available electron-rich tris(p-methoxyphenyl) phosphine ensures...
María S Islas et al.
Inorganic chemistry, 53(11), 5724-5737 (2014-05-16)
A new Cu(II) complex with the antihypertensive drug telmisartan, [Cu8Tlm16]·24H2O (CuTlm), was synthesized and characterized by elemental analysis and electronic, FTIR, Raman and electron paramagnetic resonance spectroscopy. The crystal structure (at 120 K) was solved by X-ray diffraction methods. The...
Huawei Cai et al.
Journal of nuclear medicine : official publication, Society of Nuclear Medicine, 55(4), 622-628 (2014-03-19)
Copper is an element required for cell proliferation and angiogenesis. Human prostate cancer xenografts with increased (64)Cu radioactivity were visualized previously by PET using (64)CuCl2 as a radiotracer ((64)CuCl2 PET). This study aimed to determine whether the increased tumor (64)Cu...
Lucélia Moraes-Silva et al.
Journal of biochemical and molecular toxicology, 26(9), 354-359 (2012-07-20)
This work investigated the effects of copper as preventive treatment against mercury-induced alterations in young rats. Wistar rats were treated (subcutaneous) with saline or CuCl(2) · 2H(2) O (6.9 mg/kg/day) from 3 to 7 days old and with saline or...
Laura Engel et al.
Sensors (Basel, Switzerland), 19(5) (2019-03-13)
A fast and sensitive method to monitor hydrogen sulfide (H₂S) in ambient air based on a visible color change of a printed disposable sensor has been developed. As gas-sensitive material, an immobilized copper(II) complex of the azo dye 1-(2-pyridylazo)-2-naphtol (H-PAN)...
Kusaï Alomar et al.
Journal of inorganic biochemistry, 126, 76-83 (2013-06-25)
The reaction of nickel(II), copper(II) chlorides and cadmium(II) chloride and bromide with thiophene-2,3-dicarboxaldehyde bis(thiosemicarbazone) (2,3BTSTCH2) leads to a series of new complexes: [Ni(2,3BTSTCH)]Cl, [Cu(2,3BTSTC)], [CdCl2(2,3BTSTCH2)] and [CdBr2(2,3BTSTCH2)]. The crystal structures of the ligand and of [Ni(2,3BTSTCH)]Cl complex have been determined....
Huizhang Guo et al.
ChemSusChem, 8(3), 486-494 (2014-12-17)
Pt-based bimetallic electrocatalysts hold great potential in the oxygen reduction reaction (ORR) in current fuel-cell prototypes. However, they also face challenges from drastic dealloying of less-noble metals and coalescence of small nanoparticles. Porous and structure-ordered nanotubes may hold the potential...
Chunxia Qin et al.
Journal of nuclear medicine : official publication, Society of Nuclear Medicine, 55(5), 812-817 (2014-03-15)
Human copper transporter 1 (CTR1) is overexpressed in a variety of cancers. This study aimed to evaluate the use of (64)CuCl2 as a theranostic agent for PET and radionuclide therapy of malignant melanoma. CTR1 expression levels were detected by Western...