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Showing 1-30 of 85 results for "676934" within Papers
Homayon Ahmad Panahi et al.
Journal of chromatography. A, 1345, 37-42 (2014-05-02)
In this research, a novel method is reported for the surface grafting of N-isopropylacrylamide as a thermosensitive agent and 1-(N,N-bis-carboxymethyl)amino-3-allylglycerol with an affinity toward fluvoxamine onto magnetic nano-particles modified by 3-mercaptopropyltrimethoxysilane. The grafted nano-particles were characterized by Fourier transform infrared
Health evaluation of 1,4-dioxane.
C T DeRosa et al.
Toxicology and industrial health, 12(1), 1-43 (1996-01-01)
Elham Moniri et al.
Journal of AOAC International, 98(1), 206-212 (2015-04-11)
A simple ion imprinted amino-functionalized sorbent was synthesized by coupling activated carbon with iminodiacetic acid, a functional compound for metal chelating, through cyanoric chloride spacer. The resulting sorbent has been characterized using FTIR spectroscopy, elemental analysis, and thermogravimetric analysis and
Andrey G Pradko et al.
Steroids, 97, 78-86 (2014-09-10)
Starting from (22R,23R)-2α,3α,22,23,26-pentahydroxy-5α-cholestan-6-one 26-hemisuccinate, conjugates of 28-norcastasterone with horse radish peroxidase and bovine serum albumin were prepared. The latter conjugate was injected into rabbits; produced polyclonal antibodies were used to quantitate 6-keto-brassinosteroids. The newly developed analytical system was used in
Direct functionalization of tetrahydrofuran and 1,4-dioxane: nickel-catalyzed oxidative C(sp3)-H arylation.
Dong Liu et al.
Angewandte Chemie (International ed. in English), 52(16), 4453-4456 (2013-03-21)
Iñaki Galve et al.
Molecular diversity, 16(4), 639-649 (2012-10-12)
A practical protocol was developed for the synthesis of 2-arylamino substituted 4-amino-5,6-dihydropyrido[2,3-d]pyrimidin-7(8H)-ones from α,β-unsaturated esters, malononitrile, and an aryl substituted guanidine via the corresponding 3-aryl-3,4,5,6- tetrahydropyrido[2,3-d]pyrimidin-7(8H)-ones. Such compounds are formed upon treatment of 2-methoxy-6-oxo-1,4,5,6-tetrahydropyridine-3-carbonitriles with an aryl substituted guanidine in
Carlos E Agudelo-Morales et al.
Chemphyschem : a European journal of chemical physics and physical chemistry, 13(18), 4195-4201 (2012-10-24)
The quenching of pyrene and 1-methylpyrene fluorescence by nitroanilines (NAs), such as 2-, 3-, and 4-nitroaniline (2-NA, 3-NA, and 4-NA, respectively), 4-methyl-3-nitroaniline (4-M-3-NA), 2-methyl-4-nitroaniline (2-M-4-NA), and 4-methyl-3,5-dinitroaniline (4-M-3,5-DNA), are studied in toluene and 1,4-dioxane. Steady-state fluorescence data show the higher
Self-curable benzoxazine functional polybutadienes synthesized by click chemistry.
Kukut M, et al.
Designed Monomers and Polymers, 12(2), 167-176 (2009)
P Láng et al.
Journal of pharmaceutical and biomedical analysis, 102, 229-235 (2014-10-12)
The effects of solvents, temperature and humidity on the stability of a former drug candidate obtained from Sanofi (Hungary) were examined by a slurry equilibration method, variable temperature and humidity X-ray powder diffractometry (VT/VH-XRPD) and differential scanning calorimetry (DSC). The
R Dario Arrua et al.
Journal of chromatography. A, 1273, 26-33 (2013-01-01)
Rigid monolithic cryostructures were prepared in capillary format at sub-zero temperatures and used successfully in the separation of proteins by hydrophobic interaction chromatography (HIC). The polymerization mixture consisted of poly(ethyleneglycol) diacrylate (PEGDA) M(n)∼258 as the single monomer, a mixture of
John R Horsley et al.
Journal of the American Chemical Society, 136(35), 12479-12488 (2014-08-15)
Electrochemical studies are reported on a series of peptides constrained into either a 310-helix (1-6) or β-strand (7-9) conformation, with variable numbers of electron rich alkene containing side chains. Peptides (1 and 2) and (7 and 8) are further constrained
Hui-Ling Che et al.
International journal of analytical chemistry, 2015, 357609-357609 (2015-11-26)
Quantification of tocotrienols in human plasma is critical when the attention towards tocotrienols on its distinctive properties is arising. We aim to develop a simple and practical normal-phase high performance liquid chromatography method to quantify the amount of four tocotrienol
Da Huang et al.
Biomaterials, 52, 417-425 (2015-03-31)
Bone tuberculosis (TB) is one of the most common extrapulmonary TB. Effective integration of chemotherapy and bone regeneration is an optimal solution for bone TB therapy. Herein, we produce a composite scaffold drug delivery system fabricated with an isoniazid conjugated
Urara Hasegawa et al.
Macromolecular bioscience, 15(11), 1512-1522 (2015-06-24)
Prodrug micelles carrying 5-(4-hydroxyphenyl)-3H-1,2-dithiole-3-thione (ADT-OH), a compound possessing chemopreventive properties, are prepared from amphiphilic block copolymers linking ADT-OH via an ester bond using glycine (PAM-PGlyADT) and isoleucine linkers (PAM-PIleADT). The release of ADT-OH from the PAM-PIleADT micelles is much slower
Gui-Peng Tian et al.
Water science and technology : a journal of the International Association on Water Pollution Research, 70(12), 1934-1940 (2014-12-19)
1,4-Dioxane is a probable human carcinogenic and refractory substance that is widely detected in aquatic environments. Traditional wastewater treatment processes, including activated sludge, cannot remove 1,4-dioxane. Removing 1,4-dioxane with a reaction kinetic constant of 0.32 L/(mol·s) by using ozone, a
Anita Toulmin et al.
Journal of medicinal chemistry, 51(13), 3720-3730 (2008-06-19)
Partition coefficients were measured for 47 compounds in the hexadecane/water ( P hxd) and 1-octanol/water ( P oct) systems. Some types of hydrogen bond acceptor presented by these compounds to the partitioning systems are not well represented in the literature
Rodrigo Abonia et al.
European journal of medicinal chemistry, 57, 29-40 (2012-10-10)
Novel quinoline-2-one based chalcones were synthesized from a Claisen-Schmidt condensation by using the couple KOH/1,4-dioxane as reaction medium. A relatively stable aldol was isolated and identified as the intermediate species in the formation of the target chalcones. Nine of the
Kiyoaki Ishimoto et al.
Biomacromolecules, 13(11), 3757-3768 (2012-09-19)
For developing broader application of biobased polymers, graft copolymers and comb polymers having poly(lactic acid) (PLA) side chains have been synthesized by using a macromonomer technique. PLA macromonomers (MMm) having a methacryloyl polymerizable group with different PLA chain length with
Ia I Korenman et al.
Sudebno-meditsinskaia ekspertiza, 55(6), 38-41 (2013-02-15)
The results of extraction of 6-mercaptopurine and azathioprine from aqueous saline solutions with organic solvents of different chemical nature and their mixtures are presented. Synergism between the distribution coefficients was demonstrated during the extraction of the above compounds with 1,4-dioxane
Tatsuya Nishiyama et al.
Proceedings of the National Academy of Sciences of the United States of America, 111(48), 17152-17157 (2014-11-21)
Organocatalysts, low-molecular mass organic compounds composed of nonmetallic elements, are often used in organic synthesis, but there have been no reports of organocatalysts of biological origin that function in vivo. Here, we report that actinorhodin (ACT), a natural product derived
Suha Altarawneh et al.
Environmental science & technology, 49(7), 4715-4723 (2015-03-03)
Benzimidazole-linked polymers (BILPs) are emerging candidates for gas storage and separation applications; however, their current synthetic methods offer limited control over textural properties which are vital for their multifaceted use. In this study, we investigate the impact of acid-catalyzed formation
Marzieh Rashidipour et al.
Journal of AOAC International, 97(4), 1109-1113 (2014-08-26)
Matrix solid-phase dispersion (MSPD) methodology as a quick and easy extraction method has been developed to extract oleuropein from Olea europaea leaves. This method has been compared with conventional maceration and Soxhlet extraction (SOXE) methods. Variables affecting MSPD, such as
Sobhi M Gomha et al.
Molecules (Basel, Switzerland), 17(8), 9335-9347 (2012-08-07)
Successful implementation of ultrasound irradiation for the rapid synthesis of a novel series of 3-[1-(4-substituted-5-(aryldiazenyl)thiazol-2-yl)hydrazono)ethyl]-2H-chromen-2-ones 5a-h, via reactions of 2-(1-(2-oxo-2H-chromen-3-yl)ethylidene) thiosemicarbazide (2) and the hydrazonoyl halides 3(4), was demonstrated. Also, a new series of 5-arylidene-2-(2-(1-(2-oxo-2H-chromen-3-yl)ethylidene)hydrazinyl)thiazol-4(5H)-ones 10a-d were synthesized from reaction
Kyle T Greenway et al.
The Journal of organic chemistry, 77(20), 9221-9226 (2012-10-03)
Hyperconjugation underlies many chemical phenomena of fundamental and practical importance. Owing to a great deal of interest in the anomeric effect, anomeric-like hyperconjugative effects have been thoroughly investigated in oxygen-containing systems. However, such interactions in the second- and third-row chalcogens
Elisabeth Eckert et al.
Journal of chromatography. B, Analytical technologies in the biomedical and life sciences, 935, 80-84 (2013-08-21)
An analytical method for the determination of β-hydroxyethoxyacetic acid (HEAA), the main urinary metabolite of 1,4-dioxane was developed and validated. The presented method involves liquid-liquid extraction of HEAA from the urine samples, followed by silylation and subsequent analytical separation and
Susanne Kirchhof et al.
European journal of pharmaceutics and biopharmaceutics : official journal of Arbeitsgemeinschaft fur Pharmazeutische Verfahrenstechnik e.V, 96, 217-225 (2015-08-09)
Eight-armed PEG was functionalized with furyl and maleimide groups (8armPEG20k-Fur and 8armPEG20k-Mal); degradable hydrogels were obtained by cross-linking via Diels-Alder chemistry. To increase the stability to degradation, the macromonomers were modified by introducing a hydrophobic 6-aminohexanoic acid spacer between PEG
Johnathon Yau et al.
Beilstein journal of organic chemistry, 11, 2171-2178 (2015-12-15)
Two new nickel catalysts have been prepared using a convenient procedure where nickelocene, the NHC·HBF4 salts, and [Et4N]Cl were heated in THF using microwave irradiation. The resulting [NiCl(Cp)(NHC)] complexes are air- and moisture stable in the solid state, and represent
Jatinder Kumar et al.
PloS one, 9(6), e98696-e98696 (2014-06-18)
Fourteen saxicolous lichens from trans-Himalayan Ladakh region were identified by morpho-anatomical and chemical characteristics. The n-hexane, methanol and water extracts of the lichens were evaluated for their antioxidant capacities. The lichen extracts showing high antioxidant capacities and rich phenolic content
V K Shormanov et al.
Sudebno-meditsinskaia ekspertiza, 55(3), 37-41 (2012-08-11)
The optimal conditions for the isolation of esfenvalerate from the biological specimens have been determined. It was shown that this compound can be separated from the endogenous component of a biological material by means of liquid-liquid extraction and chromatography on
Abdullah M Asiri et al.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 95, 679-684 (2012-05-18)
The absorption and fluorescence characteristics of 4-(p-N,N-dimethyl-aminophenylmethylene)-2-phenyl-5-oxazolone (DPO) have been investigated in different solvents. DPO dye exhibits a large red shift in both absorption and emission spectra as solvent polarity increases, indicating a large change in the dipole moment of
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