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Azo Compounds (15):
Recent article
Azo Compounds
Mesodermal developmental gene Tbx15 impairs adipocyte differentiation and mitochondrial respiration.
Abstract
We have previously shown that the mesodermal developmental transcription factor Tbx15 is highly differentially expressed between visceral and subcutaneous (s.c.) fat in both humans and rodents, and in humans visceral fat Tbx15 expression is decreased in obesity. Here we show that, in mice, Tbx15 is...
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PMID: 21282637
PDF is available here.
PDF is available here.
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Abstract
The objective of this study was to investigate the enzymatic generation of the Mn(3+) -malonate complex and its application to the process of oxidizing several organic compounds. The experimental set-up consisted of an enzymatic reactor coupled to an ultrafiltration membrane, providi...
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PMID: 21509948
PDF is available here.
PDF is available here.
Abstract
We developed a binary mixing system with two Pluronics, L121/P123, as a nano-sized drug delivery carrier. The lamellar-forming Pluronic L121 (0.1 wt%) was incorporated with Pluronic P123 to produce nano-sized dispersions (in case of 0.1 and 0.5 wt% P123) with high stability due to Pluronic P123 and...
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PMID: 20850281
PDF is available here.
PDF is available here.
Abstract
A new flow procedure for the preparation of arylsulfonyl chlorides from aniline starting materials is described. The reaction conditions are mild, requiring no added acid and are amenable to continuous flow processing, in a safe, easily scalable and less labour intensive way than the corresponding b...
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PMID: 20877783
PDF is available here.
PDF is available here.
Abstract
The feasibility of using a retailer fidelity card scheme to estimate food additive intake was investigated using the Swiss retailer MIGROS's Cumulus Card and the example of the food colour Sunset Yellow (E 110). Information held within the card scheme was used to identify a sample of households purc...
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PMID: 20672203
PDF is available here.
PDF is available here.
Abstract
In this paper a simple, selective and inexpensive kinetic method was developed for the determination of morphine based on its inhibitory effect on the Janus green-bromate system in sulfuric acid media. The reaction was monitored spectrophotometrically at 618 nm by a fixed time method. The effect of...
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PMID: 20634129
PDF is available here.
PDF is available here.
Abstract
Two oxime-based colorimetric probes for the hypochlorite anion (ClO(-)) have been rationally designed and synthesized on basis of the mechanism of intramolecular charge transfer (ICT). Upon addition of ClO(-), the probes displayed around 20nm redshift in the absorption maximum, accompanied with the...
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PMID: 20591725
PDF is available here.
PDF is available here.
Abstract
A new high-sensitivity detection of protein assay at the nanogram level is proposed based on multi-spectroscopic methods including resonance light scattering (RLS), atomic force microscopy (AFM), ultraviolet spectra (UV) and fluorescence spectra etc. Under the optimum conditions, the amplified RLS s...
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PMID: 20638325
PDF is available here.
PDF is available here.
Bioresource Technology (101)19 2010
Abstract
In this paper the Mannich reaction product of dimethylamine, acetone and formaldehyde was grafted onto hydroxymethylated lignin to form a lignin-base cationic polyelectrolyte (L-DAF). L-DAF samples with different cationic strengths and molecular weights were synthesized and character...
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PMID: 20576562
PDF is available here.
PDF is available here.
Abstract
A cascade aza-Michael-Henry-dehydration reaction catalyzed by quinidine-derived tertiary amine-thiourea catalyst was developed via installation of suitable electron withdrawing groups at the amino function of aniline. This strategy led to a one-step preparation of chiral 3-nitro-1,2-dihydroquinoline...
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PMID: 20648391
PDF is available here.
PDF is available here.
Journal of Environmental Science and Health, Part A: Toxic/Hazardous Substances & Environmental Engineering (45)11 2010
Abstract
Nanoparticles of zinc oxide semiconductor were applied for removal of toxic organic pollutants such as dyes (alizarin yellow GG) from wastewater using laser induced photocatalytic process. A special photoreactor was designed for this purpose using local resources. Laser enhanced photo degradation of...
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PMID: 20694880
PDF is available here.
PDF is available here.
Chemical Communications (46)32 2010
Abstract
Photo- and thermal-responsive polymers containing azobenzene units in the main chain have been utilized as removable dispersants for single-walled carbon nanotubes (SWNTs) in organic solvents. Intermolecular interactions between SWNTs and the polymers are reversibly controllable by tuning the trans-...
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PMID: 20614072
PDF is available here.
PDF is available here.
Chemical Communications (46)31 2010
Abstract
In contrast to amidines bearing ionizable alpha-CH bonds, which react with nitric oxide (NO) to add diazeniumdiolate groups at their alpha-carbons, benzamidine forms an N-bound diazeniumdiolate that can be further derivatized at the other amidine nitrogen and/or the terminal oxygen to form caged NO...
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PMID: 20589293
PDF is available here.
PDF is available here.
Abstract
Tripodal molecules consisting of a tetrasubstituted adamantane with three phenylacetylene legs and a reversibly photoswitching apex were designed as "single molecular tips" for both chemical and topographical characterization of the substrate surface. By covalent attachment onto gold-coated AFM tips...
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PMID: 20589278
PDF is available here.
PDF is available here.
Abstract
In a screening of saprotrophic, ectomycorrhizal and plant pathogen ascomycetes a frequent occurrence of laccase was observed. Lamprospora wrightii, the best producing organism, was chosen to elucidate the properties of a laccase from a moss-associated, saprotrophic ascomycete. The ex...
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PMID: 20652905
PDF is available here.
PDF is available here.
Abstract
We aimed to assess the utility of the lipid index in identifying patients with significant GORD.
Our investigation was a prospective analysis of 34 lung transplant patients who were transplanted between April 1999 and July 2006 at a single institution. All patients with recurrent respiratory infecti...
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PMID: 20466562
PDF is available here.
PDF is available here.
Bioresource Technology (101)15 2010
Abstract
This study focused on the competitive biosorption of Yellow 2G (Y2G) and Reactive Brilliant Red K-2G (RBR) by inactive aerobic granules in binary solutions. A first-order derivative spectrophotometric method for the simultaneous determination of Y2G and RBR in binary solutions was developed. Dubinin...
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PMID: 20303747
PDF is available here.
PDF is available here.
Abstract
Results indicated that AV7 showed a significant ability to induce chromosome aberrations, lipid peroxidation, and acetylcholinesterase inhibitory effect. The toxicity of AV7 increased significantly after static biodegradation with P. putida mt-2 and totally disappeared after shaken incubation. In ad...
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PMID: 20369386
PDF is available here.
PDF is available here.
Abstract
A simple and precise square-wave adsorptive cathodic stripping voltammetry (SW-AdCSV) method has been described for simultaneous determination of Mn(II), Cu(II) and Fe(III) in water samples using a carbon paste electrode. In 0.1 mol L(-1) acetate buffer (pH 5) containing 50 micromol L(-1) of 2-(5'-b...
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PMID: 20602949
PDF is available here.
PDF is available here.
Abstract
Single doped, co-doped and tri-doped TiO(2) with B, N and Fe are successfully synthesized by using the hydrothermal method. The samples are characterized by X-ray diffraction (XRD), UV-vis diffuse reflectance spectroscopy (DRS), and X-ray photoelectron spectroscopy (XPS). The photocatalytic activiti...
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PMID: 20648355
PDF is available here.
PDF is available here.
Abstract
To investigate biodegradability by Trametes versicolor, five structurally different direct azo-dyes--Direct Black 38, Direct Blue 15 (DB 15), Direct Orange 26, Direct Green 6, and Direct Yellow 12--were studied. The DB 15 was determined as the best biodegradable dye by this white-rot fungus. Laccase...
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PMID: 20669718
PDF is available here.
PDF is available here.
Bioresource Technology (101)14 2010
Abstract
The biosorption of Acid Orange 52 onto the leaf powder of Paulownia tomentosa Steud. was studied in a batch adsorption system to estimate the equilibrium, kinetic and thermodynamic parameters as a function of solution pH, biosorbent concentration, dye concentration, biosorbent size, temperature and...
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PMID: 20194017
PDF is available here.
PDF is available here.
Journal of Hazardous Materials (178)1-3 2010
Abstract
To study the fast kinetic decolourisation of textile dyes by ozone a continuous quench-flow system was used. This system has not been used before for these purposes. Reaction times in the range of 7-3000 ms were explored. The reaction was quenched with potassium iodide, which proved to be very effec...
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PMID: 20133054
PDF is available here.
PDF is available here.
Journal of Hazardous Materials (178)1-3 2010
Abstract
Innovative magnetic alginate beads are used to remove organic pollutants from aqueous solution under different experimental conditions. These alginate beads (EpiMAB) are prepared by an extrusion technique and crosslinked with epichlorohydrin. They contain both magnetic nanoparticles and activated ca...
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PMID: 20153928
PDF is available here.
PDF is available here.
Abstract
Degradation of Active Brilliant Red X-3B (X-3B) in aqueous solution by a microwave discharge electrodeless lamp (MDEL) in the presence of activated carbon was investigated. The preliminary results proved this method could effectively degrade X-3B in aqueous solution. The removal percentages of colou...
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PMID: 20586239
PDF is available here.
PDF is available here.
Biodegradation (21)3 2010
Abstract
A newly isolated novel bacterium from sediments contaminated with dyestuff was identified as Pseudomonas aeruginosa strain BCH by 16S rRNA gene sequence analysis. The bacterium was extraordinarily active and operative over a wide rage of temperature (10-60 degrees C) and salinity (5-6%), for decolor...
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PMID: 19937265
PDF is available here.
PDF is available here.
Abstract
We have developed a simple and straightforward procedure for the enantioselective preparation of densely substituted bicyclic and tricyclic nitrogen heterocycles using conveniently substituted enantiopure pyrrolidines as common synthetic intermediates, which are easily accessible by our recently dev...
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PMID: 20401401
PDF is available here.
PDF is available here.
Abstract
A series of new mesogenic azomethine diols were successfully synthesized by condensation reactions between various chloroalkanols and N,N'-bis(4-hydroxy)-benzylidene-o-toluidine (1). The structures of these compounds were confirmed by CHN, FT-IR, (1)H-NMR, and (13)C-NMR spectrophotometer. Their ther...
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PMID: 20657475
PDF is available here.
PDF is available here.
Abstract
A photoresponsive RNA aptamer to hemin was selected in vitro from a random sequence library of RNAs with azobenzene residues. The aptamer bound to hemin under visible light irradiation and was released by ultraviolet light.
2010 Elsevier Ltd. All rights reserved.
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PMID: 20347300
PDF is available here.
PDF is available here.
Abstract
Although cytoplasmic azoreductases have been purified and characterized from various bacteria, little evidence demonstrating that these azoreductases are directly involved in azo dye reduction in vivo is known. In order to evaluate the contribution of the enzyme to azo dye reduction in vivo, experim...
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PMID: 19663804
PDF is available here.
PDF is available here.
Abstract
The non-covalent interaction of reactive brilliant red (RBR) as a representative of sulfonic azo compounds with human serum albumin (HSA) was investigated by a combination of UV-VIS spectrometry, fluorophotometry, circular dichroism (CD) and isothermal titration calorimetry (ITC) technique. The ther...
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PMID: 20156186
PDF is available here.
PDF is available here.
Chemosphere (79)8 2010
Abstract
Ferrihydrites were prepared by different mixing procedures of ferric and sodium hydroxide solutions. The microstructure of ferrihydrites was characterized by XRD, TG-DTA, BET surface and EXAFS. The catalytic activity of ferrihydrites toward degradation of Mordant Yellow 10 (MY10) and decomposition o...
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PMID: 20362322
PDF is available here.
PDF is available here.
Nanotechnology (21)16 2010
Abstract
A method for inscribing surface relief gratings in azopolymer thin films via proximity field nanopatterning is reported. Azopolymers prepared by ring opening metathesis polymerization were cast as thin films and brought into conformal contact with transparent polydimethylsiloxane phase masks. Irradi...
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PMID: 20348592
PDF is available here.
PDF is available here.
Abstract
The first guanine-based difunctional colorimetric receptor 8-[(4-nitrophenyl)azo]guanine (receptor 1) was designed, synthesized and characterized by IR, UV-vis, (1)H NMR and mass spectrometric analysis. The synthesized receptor 1 was able to recognize Cu(II), Zn(II) and acetate ion through visible c...
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PMID: 20188987
PDF is available here.
PDF is available here.
Chemical Communications (46)15 2010
Abstract
A new unsymmetric guest compound comprising ferrocene and azobenzene moieties was synthesized and can form a host-guest system with beta-cyclodextrin (beta-CD) complexed. The complexation stoichiometries and sites of the ensembles can be selectively controlled by reversible redox and photoirradiatio...
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PMID: 20449316
PDF is available here.
PDF is available here.
Abstract
We describe the first Cu(I)-catalyzed addition of Grignard reagents to in situ-derived N-sulfonyl azoalkenes. This method is remarkable in its ability to deliver highly sterically hindered compounds that would be difficult or impossible to synthesize via traditional enolate chemistry, including thos...
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PMID: 20232808
PDF is available here.
PDF is available here.
Abstract
We have developed novel poly(diol citrate) elastomers, which are capable of providing localized and sustained release of nitric oxide (NO). The elastomer prepolymer was obtained by condensation of citric acid, 1,8-octanediol, and N,N'-bis(2-hydroxyethyl)ethylenediamine at 130 degrees C for 40 min. F...
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PMID: 19569216
PDF is available here.
PDF is available here.
Abdominal Imaging (35)2 2010
Fibrous stroma and vascularity of pancreatic carcinoma: correlation with enhancement patterns on CT.
Abstract
All but one patient exhibited a gradually increasing enhancement, but there was considerably wide range in contrast-enhancement values of tumors. Examination of the overall relationship between vascularity and fibrous stroma with contrast-enhancement behavior showed that tumor with more fibrosis and...
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PMID: 18815826
PDF is available here.
PDF is available here.
Abstract
The deep layer of the lamina propria is the most densely organized band of collagen fibers penetrating the superficial muscle bundles of the vocal muscle. The mean thickness of this layer is about 36% of the lamina propria and shows a network of strongly birefringent fibers (collagen type I and III)...
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PMID: 19841851
PDF is available here.
PDF is available here.
Phosphonylpyrazoles from Bestmann-Ohira reagent and nitroalkenes: synthesis and dynamic NMR studies.
Abstract
Application of diethyl 1-diazo-2-oxopropylphosphonate (Bestmann-Ohira reagent) as a cycloaddition partner with nitroalkenes has been extensively investigated. Base-mediated reaction of the Bestmann-Ohira reagent with various nitroalkenes such as beta-substituted, alpha,beta-disubstituted, and nitroe...
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PMID: 20218559
PDF is available here.
PDF is available here.
Abstract
The reactivity of the trigonal bipyramidal iron(I) complex [SiP(iPr)(3)]Fe(N(2)) ([SiP(iPr)(3)] = (2-iPr(2)PC(6)H(4))(3)Si(-)) toward organoazides has been examined. 1-Adamantylazide was found to coordinate the iron center to form stable [SiP(iPr)(3)]Fe(eta(1)-N(3)Ad). Aryl azides instead afforded u...
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PMID: 20199026
PDF is available here.
PDF is available here.
Abstract
A novel electrochemical biosensor is described for detection of breakpoint cluster region gene and a cellular abl (BCR/ABL) fusion gene in chronic myelogenous leukemia (CML) by using thiolated-hairpin locked nucleic acids (LNA) as the capture probe. The hairpin LNA probe was immobilized on the nanog...
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PMID: 20152460
PDF is available here.
PDF is available here.
Journal of Hepatology (52)5 2010
Abstract
We sought to determine the temporal relationship between hepatic mitochondrial dysfunction, hepatic steatosis and insulin resistance, and to examine their potential role in the natural progression of non-alcoholic fatty liver disease (NAFLD) utilising a sedentary, hyperphagic, obese, Otsuka Long-Eva...
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PMID: 20347174
PDF is available here.
PDF is available here.
Abstract
The endogenous GFP and multilineage potential of transgenic DPSCs had no influence on each other. Moreover, the results of fluorescence microscopic imaging suggest that there was no significant decline of GFP expression during DPSCs differentiation. CONCLUSION: As the population of GFP labeled DPSCs...
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PMID: 20690415
PDF is available here.
PDF is available here.
Abstract
The mean nuclear area of keratinocytes from the mucosa of tobacco users was 46 +/- 2.57 and that of the oral squamous cell carcinoma lesion was 81.54 +/- 4.31. While there was a significant (P = 0.001) reduction in the cellular area of keratinocytes from oral squamous cell carcinoma lesion when comp...
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PMID: 20690418
PDF is available here.
PDF is available here.
Abstract
Our findings suggest that formation of cartilages in vivo is possible....
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PMID: 20489452
PDF is available here.
PDF is available here.
Journal of Fluorescence (20)2 2010
Abstract
We describe an approach to developing lifetime standards in any wavelength range, based on Förster resonance energy transfer (FRET). These standards are bright, highly reproducible, have a broad decrease in observed lifetime, and an emission wavelength in the red to near infrared making them well s...
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PMID: 19953311
PDF is available here.
PDF is available here.
Dental Materials Journal (29)2 2010
Abstract
The main objective was to investigate the effects of different polishing techniques on the color stability of provisional prosthetic materials upon exposure to different staining agents by mimicking the oral environment in vitro. Fifty-six cylindrical specimens were prepared for each type of materia...
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PMID: 20379027
PDF is available here.
PDF is available here.
Nutrition Research (30)3 2010
Abstract
We hypothesized that a diet containing polyunsaturated fatty acids (PUFAs) could ameliorate pathogenesis of diabetic kidney diseases associated with lipid depositions in the kidneys. We examined if the pathogenesis and progression of diabetic nephropathy are affected by the type of dietary fat using...
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PMID: 20417883
PDF is available here.
PDF is available here.
Abstract
In this work, a synthetic textile effluent containing a reactive dye (C.I. Reactive Orange 4) was treated in an electrochemical cell with titanium covered by platinum oxide (Ti/PtOx) electrodes to remove color. The discolored effluent was mixed with other textile mill process effluents (scouring, bl...
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PMID: 20183984
PDF is available here.
PDF is available here.
Abstract
A series of eighteen azomethines has been synthesized by the reaction of appropriate primary aromatic amines with aryl and/or heteroaryl carboxaldehydes. The synthesized azomethines have been evaluated for their in vitro antileishmanial, antibacterial and antifungal activities. The results revealed...
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PMID: 20335936
PDF is available here.
PDF is available here.
Microbiology (156)Pt 2 2010
Abstract
These results demonstrate that the expression of these genes from the three potential transcripts is under the positive control of VlmI. The vlmA-vlmH and vlmI-vlmJ intergenic regions both exhibit a pattern of heptameric direct repeats. Gel shift assays with VlmI overproduced in Escherichia coli as...
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PMID: 19892763
PDF is available here.
PDF is available here.
Abstract
We have explored the possibility of modulating the activity of a restriction enzyme with light. By cross-linking two suitably located cysteine residues with a bifunctional azobenzene derivative, which can adopt a cis- or trans-configuration when illuminated by UV or blue light, respectively, enzymat...
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PMID: 20080559
PDF is available here.
PDF is available here.
Abstract
Abstract
We could study the morphological findings, or with oil red O, to enable us to identify lipid deposits. The histological findings observed in biopsies taken after a single RF treatment showed changes in shape, size, and lipid content, as well as in cytoplasmic and nuclear morphology. After RF treatme...
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PMID: 19322624
PDF is available here.
PDF is available here.
Abstract
We utilized a well-defined adipose differentiation model system, the murine preadipocyte line 3T3-L1, to address this issue. We showed that knocking down Epac expression in 3T3-L1 cells using lentiviral based small hairpin RNAs down-regulated peroxisome proliferator-activated receptor gamma expressi...
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PMID: 20036887
PDF is available here.
PDF is available here.
Abstract
A highly selective and sensitive derivative spectrophotometric method has been developed for the determination of Fe(II) and Ni(II) in different mineral vitamins. The method is based on the formation of binary complexes of Fe(II) and Ni(II) with 2,4-diamino-5-(2-hydroxy-5-nitrophenylazo) benzenesulf...
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PMID: 20629384
PDF is available here.
PDF is available here.
Abstract
The decolorization of Reactive Yellow 86 (RY 86), one of reactive azo dyes, was investigated in the presence of Fenton reagent under solar light irradiation. The decolorization rate was strongly influenced by pH, initial concentrations of H2O2 and Fe(II), and so on. An initial concentration of 40 mg...
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PMID: 21174979
PDF is available here.
PDF is available here.
Kokuritsu Iyakuhin Shokuhin Eisei Kenkyujo hokoku = Bulletin of National Institute of Health Sciences ()128 2010
Abstract
We found a mixture of azo dyes (CMBA, main component: N-[5-[(2-cyanoethyl)ethylamino]-4-methoxy-2-[(5-nitro-2,1-benzisothiazol-3-yl)azo]phenyl] acetamide) that precipitated in the culture medium in a characteristic fiber form (around 2 - 33 microm in length) similar to that of asbestos. We compared...
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PMID: 21375215
PDF is available here.
PDF is available here.
Abstract
Photoresponsive block copolymers (PRBCs) containing azobenzenes and other chromophores can be easily prepared by controlled polymerization. Their photoresponsive behaviors are generally based on photoisomerization, photocrosslinking, photoalignment and photoinduced cooperative motions. When the phot...
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PMID: 20110910
PDF is available here.
PDF is available here.