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651745

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František Surman et al.
Macromolecular bioscience, 15(5), 636-646 (2015-02-04)
In the current study, well-defined polymer brushes are shown as an effective surface modification to resist the adhesion of whole blood and its components. Poly[oligo(ethylene glycol)methylether methacrylate] (poly(MeOEGMA)), poly(hydroxyethyl methacrylate) (poly(HEMA)), poly[N-(2-hydroxypropyl) methacrylamide] (poly(HPMA)), and poly(carboxybetaine acrylamide) (poly(CBAA)) brushes were...
Semiconductors: Data Handbook null
Shuzhao Li et al.
Materials science & engineering. C, Materials for biological applications, 43, 350-358 (2014-09-02)
A water-soluble cationic diblock copolymer, CD-PAM-b-PMeDMA, was synthesized through atom transfer radical polymerization (ATRP) from a β-cyclodextrin (CD) macroinitiator with 10-active sites (10Br-β-CD). In order to reduce the cytotoxicity of the CD-PAM-b-PMeDMA, biocompatible polyacrylamide (PAM) was first introduced onto the...
B Ceken et al.
Bioorganicheskaia khimiia, 34(4), 546-557 (2008-08-13)
We investigated the reactions of substituted aryl radicals and aryl cations derived from arenediazonium ions and their ability to cause cleavage of supercoiled DNA and their tendency toward free radical or cation formation in the presence and absent of copper...
Shih-Chen Hsu et al.
Small (Weinheim an der Bergstrasse, Germany), 11(2), 195-201 (2014-08-15)
Au-Cu2 O core-shell nanocubes, octahedra, and rhombic dodecahedra display facet-dependent optical properties. Furthermore, different-sized Au-Cu2 O octahedra with 58, 65, 68, and 73 nm octahedral gold cores clearly show a transition from the shell thickness-independent gold surface plasmon resonance band...
Derak J James et al.
ACS applied materials & interfaces, 7(42), 23623-23632 (2015-10-20)
Derivatives of synthetic tetrahedrite, Cu12Sb4S13, are receiving increasing attention in the thermoelectric community due to their exploitation of plentiful, relatively nontoxic elements, combined with a thermoelectric performance that rivals that of PbTe-based compounds. However, traditional synthetic methods require weeks of...
Pan Dang et al.
Organic letters, 17(1), 34-37 (2014-12-17)
An efficient copper catalyzed strategy for the synthesis of a variety of benzothiazolethione derivatives has been developed. In the presence of CuCl, the three-component reaction of o-iodoanilines and K2S with p-toluenesulfonylmethyl isocyanide proceeded smoothly to obtain the corresponding benzothiazolethiones in...
Parthiban Ramasamy et al.
Chemistry, an Asian journal, 10(7), 1468-1473 (2015-05-02)
The first colloidal synthesis of Cu2 GeS3 (CGS) nanocrystals with a thermodynamically metastable wurtzite crystal phase is reported. As a benefit of the sulfur precursors used in the synthesis, the shape of the as-synthesized wurtzite CGS nanocrystals can be controlled...
Nail Altunay et al.
Food additives & contaminants. Part A, Chemistry, analysis, control, exposure & risk assessment, 32(9), 1475-1487 (2015-07-15)
A new ultrasonic-assisted cloud-point-extraction (UA-CPE) method was developed for the pre-concentration of Cu(II) in selected beverage and food samples prior to flame atomic absorption spectrometric (FAAS) analysis. For this purpose, Safranin T was used as an ion-pairing reagent based on...
Takayoshi Arai et al.
The Journal of organic chemistry, 73(13), 4903-4906 (2008-06-03)
A catalytic asymmetric Henry reaction has been developed with use of a sulfonyldiamine-CuCl complex as a catalyst. A series of new binaphthyl-containing sulfonyldiamine ligands (2a-h) were readily synthesized in two steps starting from commercially available chiral 1,2-diamines. The (R,R)-diamine-(R)-binaphthyl ligand...
Mimi Liu et al.
PloS one, 15(5), e0232184-e0232184 (2020-05-06)
The ternary chalcogenide Cu3VSe4 (CVSe) with sulvanite structure has been theoretically predicted to be a promising candidate for photovoltaic applications due to its suitable bandgap for solar absorption and the relatively earth-abundant elements in its composition. To realize the absorber...
Si Yin Tee et al.
Nanoscale, 7(25), 11190-11198 (2015-06-11)
Herein, we report a facile two-step approach to produce gold-incorporated copper (Cu/Au) nanostructures through controlled disproportionation of the Cu(+)-oleylamine complex at 220 °C to form copper nanowires and the subsequent reaction with Au(3+) at different temperatures of 140, 220 and...
Nicolas Visez et al.
Chemosphere, 73(1 Suppl), S90-S93 (2008-04-29)
Chlorination and thermal degradation of 2-chlorodibenzodioxin and dibenzofuran were investigated using sealed tubes at 350 degrees C in the presence of CuCl(2) or CuCl. Twelve organic species, including polychlorobenzenes, were identified and quantified as a function of residence time. Time...
Yin-Hua Shih et al.
Head & neck, 35(2), 250-256 (2012-03-01)
Lysyl oxidase (LOX) is a copper-dependent enzyme that cross-links collagen and elastin in the extracellular matrix. LOX overexpressed in various tumors. The manner in which LOX affects tumor growth remains controversial. Chemical treatment and gene transfection were used to induce...
Sanghwa Lee et al.
Journal of the American Chemical Society, 142(32), 13974-13981 (2020-07-17)
Atomically precise coinage metal (Au, Ag, and Cu) nanoclusters (NCs) have been the subject of immense interest for their intriguing structural, photophysical, and catalytic properties. However, the synthesis of Cu NCs is highly challenging because of low reduction potential and...
Michela Puddu et al.
Advanced healthcare materials, 4(9), 1332-1338 (2015-04-23)
As a consequence of the latest revolutionary discoveries on its functions, RNA is certainly the hottest topic at the moment, being an exceptional tool in biology as well as in medicine. For the various applications, a proper RNA storage is...
Krassimira Yoncheva et al.
International journal of pharmaceutics, 490(1-2), 298-307 (2015-06-01)
The aim of the present study was to develop curcumin loaded cationic polymeric micelles and to evaluate their loading, preservation of curcumin antioxidant activity and intracellular uptake ability. The micelles were prepared from a triblock copolymer consisting of poly(ϵ-caprolactone) and...
Milena E Miska et al.
Rapid communications in mass spectrometry : RCM, 29(24), 2341-2348 (2015-11-14)
The environmental occurrence of chlorinated acetic acids (CAAs) has been extensively studied, but the sources and transport are still not yet fully understood. A promising approach for source apportionment and process studies is the isotopic characterization of target compounds. We...
Željka Vidaković-Cifrek et al.
Arhiv za higijenu rada i toksikologiju, 66(2), 141-152 (2015-06-26)
Metals have a variety of negative outcomes on plants, essential components of any ecosystem. The effects of CdCl2 (5 μmol L-1), ZnCl2 (25 or 50 μmol L-1), and CuCl2 (2.5 or 5 μmol L-1) and combinations of CdCl2 with either...
Xiaoliang Xu et al.
Organic letters, 12(5), 897-899 (2010-02-04)
Promoted by CuCl/CCl(4), a variety of sulfonyl azides and tertiary amines were successfully coupled to give sulfonyl amidine derivatives in good to excellent yields. A possible mechanism for this reaction is discussed.
Bonil Koo et al.
Journal of the American Chemical Society, 131(9), 3134-3135 (2009-02-17)
The synthesis of monodisperse chalcopyrite (tetragonal) CuInSe(2) nanocrystals is reported. The nanocrystals have trigonal pyramidal shape, and they exhibited a common crystallographic orientation when drop-cast onto carbon substrates. A crystallographic model for the nanocrystals was developed. The nanocrystals are bounded...
Moglan Simona et al.
Revista medico-chirurgicala a Societatii de Medici si Naturalisti din Iasi, 116(3), 914-919 (2013-01-01)
Enalapril is an angiotensin-converting enzyme inhibitor widely used in the treatment of hypertension and heart failure. To design and validate a simple and sensitive spectrophotometric method. This method is based on a ternary complex formation between enalapril, copper (II), and...
Yew-Foon Tan et al.
Journal of proteome research, 11(7), 3860-3879 (2012-05-12)
Plant mitochondria are highly responsive organelles that vary their metabolism in response to a wide range of chemical and environmental conditions. Quantitative proteomics studies have begun to allow the analysis of these large-scale protein changes in mitochondria. However studies of...
M Pelà et al.
Die Pharmazie, 69(7), 496-499 (2014-07-31)
The synthesis of non natural amino acid 2-amino-3,3,4-trimethyl-pentanoic acid (Ipv) ready for solid phase peptide synthesis has been developed. Copper (I) chloride Michael addition, followed by a Curtius rearrangement are the key steps for the lpv synthesis. The racemic valine/leucine...
Xiao-ying Yuan et al.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 75(2), 520-524 (2009-12-22)
To study the interaction between gatifloxacin (GT), metal ions (Cu(2+), Cd(2+), Co(2+), Mg(2+)) and calf thymus DNA under condition of physiology pH, UV absorption and fluorescence methods were adopted. Result shows that metal ions and DNA are able to react...
Manuela Natoli et al.
Journal of cellular physiology, 226(6), 1531-1543 (2010-10-15)
The human intestinal Caco-2 cell line has been extensively used as a model of the intestinal barrier. However, it is widely reported in literature that culture-related conditions, as well as the different Caco-2 cell lines utilized in different laboratories, often...
Yanfei Hu et al.
International journal of pharmaceutics, 491(1-2), 152-161 (2015-06-23)
Thermo-responsive brush-like amphiphilic poly[2-(2-methoxyethoxy) ethyl methacrylate-co-oligo(ethylene glycol) methacrylate]-b-poly(l-lactide)-b-poly[2-(2-methoxyethoxy) ethyl methacrylate-co-oligo(ethylene glycol) methacrylate] [P(MEO2MA-co-OEGMA)-b-PLLA-b-P(MEO2MA-co-OEGMA)] triblock copolymers were synthesized by atom transfer radical polymerization of MEO2MA and OEGMA co-monomers using a α,ω-Bromopropionyl poly(l-lactide) (Br-PLLA-Br) macroinitiator. The resulting copolymers with MEO2MA/OEGMA molar ratio...
Xiao Shen et al.
Nature communications, 5, 5431-5431 (2014-11-15)
The search for optimal thermoelectric materials aims for structures in which the crystalline order is disrupted to lower the thermal conductivity without degradation of the electron conductivity. Here we report the synthesis and characterisation of ternary nanoparticles (two cations and...
Yan Xiao et al.
International journal of oncology, 37(1), 81-87 (2010-06-02)
The metal ion copper is a cofactor essential for maintaining normal biological and physical functions in human beings. High copper levels have been found in variety of tumor tissues and are involved in tumor angiogenesis processes. The ubiquitin-proteasome system plays...
Madelung O
Semiconductors: Data Handbook null
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