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Rihui Su et al.
Journal of chromatography. A, 1405, 23-31 (2015-06-17)
In this work, polymerized high internal phase emulsion (polyHIPE) monoliths were prepared and applied as monolithic adsorbent materials for proconcentration of trace polycyclic aromatic hydrocarbons (PAHs) from large-volume water samples. The monolithic polyHIPE columns were prepared by in situ polymerization
Che-Hong Chen et al.
Proceedings of the National Academy of Sciences of the United States of America, 112(10), 3074-3079 (2015-02-26)
Correcting a genetic mutation that leads to a loss of function has been a challenge. One such mutation is in aldehyde dehydrogenase 2 (ALDH2), denoted ALDH2*2. This mutation is present in ∼ 0.6 billion East Asians and results in accumulation
Maili Lehto et al.
PloS one, 9(12), e114490-e114490 (2014-12-05)
In vitro toxicological studies together with atomistic molecular dynamics simulations show that occupational co-exposure with C60 fullerene may strengthen the health effects of organic industrial chemicals. The chemicals studied are acetophenone, benzaldehyde, benzyl alcohol, m-cresol, and toluene which can be
Xiu-Qin Dong et al.
Chemical communications (Cambridge, England), 48(58), 7238-7240 (2012-05-05)
An efficient protocol for the direct construction of bioactive thiochromanes was developed via a catalytic asymmetric cascade sulfa-Michael-aldol reaction of 2-mercaptobenzaldehyde with α,β-unsaturated N-acyl imides. The key to the present methodology is introducing a pyrazole moiety as H-bond acceptor, which
Lidia Mateo et al.
PLoS genetics, 10(8), e1004560-e1004560 (2014-08-15)
The increase in availability of whole genome sequences makes it possible to search for evidence of adaptation at an unprecedented scale. Despite recent progress, our understanding of the adaptive process is still very limited due to the difficulties in linking
Kye Chung Park et al.
Journal of insect physiology, 78, 33-46 (2015-05-06)
Phytophagous insects detect volatile compounds produced by host and non-host plants, using species-specific sets of olfactory receptor neurons (ORNs). To investigate the relationship between the range of host plants and the profile of ORNs, single sensillum recordings were carried out
Cristina Avonto et al.
Toxicology and applied pharmacology, 289(2), 177-184 (2015-10-13)
Skin sensitization is an important toxicological end-point in the risk assessment of chemical allergens. Because of the complexity of the biological mechanisms associated with skin sensitization, integrated approaches combining different chemical, biological and in silico methods are recommended to replace
Karen M Ruíz-Pérez et al.
Steroids, 77(7), 819-828 (2012-03-28)
Treatment of steroid sapogenins with benzaldehyde and BF(3)·Et(2)O cleanly produces E-23(23')-benzylidenspirostanes in good yields in a reaction pathway which consists on an aldol reaction followed by a dehydration step. The obtained E-23(23')-benzylidenspirostanes can be easily converted to dinorcholanic lactones by
Longyun Lv et al.
ACS combinatorial science, 15(4), 183-192 (2013-02-22)
We previously reported the novel efficient proton/heat-promoted four-component reactions (4CRs) of but-2-ynedioates, two same/different primary amines, and aldehydes for the synthesis of tetra- and pentasubstituted polyfunctional dihydropyrroles. If aromatic and aliphatic amines were used as reagents, four different series of
Senem Kork et al.
Macromolecular rapid communications, 36(10), 923-928 (2015-04-10)
A novel one-component type II polymeric photoinitiator, poly(vinyl alcohol)-thioxanthone (PVA-TX), is synthesized by a simple acetalization process and characterized. PVA-TX enables photopolymerization of methyl methacrylate and acrylamide in both organic and aqueous media. Photopolymerization proceeds even in the absence of
Volatile components of mushroom (Agaricus subrufecens)
Chen CC & Wu CM
Journal of Food Science, 49(4), 1208-1209 (1984)
Schreiber Pereira et al.
The Journal of neuroscience : the official journal of the Society for Neuroscience, 32(26), 9035-9044 (2012-06-30)
The nematode Caenorhabditis elegans can adapt to both the AWC-sensed odorants benzaldehyde (Bnz) and isoamyl alcohol (IsoA) and can reciprocally cross-adapt. Yet we reveal that these four adaptation scenarios actually represent two distinct forms of learning: nonassociative habituation and associative
Keli Gu et al.
Bioorganic & medicinal chemistry, 15(14), 4775-4799 (2007-05-22)
A new class of 2,5-disubstituted-dioxacycloalkanes were designed and synthesized via stereoselective synthetic method as cancer chemoprevention agents. The anti-inflammatory activities of these compounds were tested using the xylene-induced mouse ear edema model. Some of these compounds exhibited comparable or better
Matthias Onghena et al.
Food additives & contaminants. Part A, Chemistry, analysis, control, exposure & risk assessment, 31(12), 2090-2102 (2014-11-20)
In 2011, the European Union prohibited the production of polycarbonate (PC) baby bottles due to the toxic effects of the PC monomer bisphenol-A. Therefore, baby bottles made of alternative materials, e.g. polypropylene (PP) or polyethersulphone (PES), are currently marketed. The
Alfonso Pérez-Garrido et al.
Bioorganic & medicinal chemistry, 17(2), 896-904 (2008-12-06)
This paper reports a QSAR study for predicting the complexation of a large and heterogeneous variety of substances (233 organic compounds) with beta-cyclodextrins (beta-CDs). Several different theoretical molecular descriptors, calculated solely from the molecular structure of the compounds under investigation
Longfei Lin et al.
Biomedical chromatography : BMC, 29(10), 1541-1547 (2015-03-27)
An ultra-performance liquid chromatography/quadrupole time-of-flight mass spectrometry method was established to detect as many constituents in rat plasma as possible after oral administration of Radix polygoni multiflori (RPM) extract. A C18 column (150 × 2.0 mm, 4 µm) was adopted to separate the samples
Mirjam Appel et al.
PloS one, 10(5), e0126986-e0126986 (2015-05-21)
Electric shock is a common stimulus for nociception-research and the most widely used reinforcement in aversive associative learning experiments. Yet, nothing is known about the mechanisms it recruits at the periphery. To help fill this gap, we undertook a genome-wide
JianCai Zhu et al.
Journal of agricultural and food chemistry, 63(34), 7499-7510 (2015-08-11)
The aroma profile of oolong tea infusions (Dongdingwulong, DDWL; Tieguanyin, TGY; Dahongpao, DHP) were investigated in this study. Gas chromatography-olfactometry (GC-O) with the method of aroma intensity (AI) was employed to investigate the aroma-active compounds in tea infusions. The results
Manon Roche et al.
Molecules (Basel, Switzerland), 18(2), 1540-1548 (2013-01-29)
We report herein the first synthesis of propargylic alcohols using an organic reducing agent. Diarylbutynol derivatives are formed in moderate to good yields under mild conditions from the reaction of 1-(3-chloroprop-1-ynyl)-4-nitrobenzene with various aromatic aldehydes using tetrakis(dimethylamino)ethylene (TDAE) as reductant.
Jairo Torres Magalhães-Junior et al.
Analytical and bioanalytical chemistry, 406(26), 6691-6700 (2014-08-31)
Visceral leishmaniasis (VL) is a zoonosis whose etiologic agent in the Americas is Leishmania infantum, and dogs are the main host. Research and innovation in diagnostic techniques are essential to improve the surveillance and control of VL in endemic areas.
Luca Nicolotti et al.
Journal of chromatography. A, 1360, 264-274 (2014-08-19)
Comprehensive two-dimensional gas chromatography (GC×GC) coupled with Mass Spectrometry (MS) is one of today's most powerful analytical platforms for detailed analysis of medium-to-high complexity samples. The column set usually consists of a long, conventional-inner-diameter first dimension ((1)D) (typically 15-30m long
Rebecca K Hylton et al.
Journal of the American Chemical Society, 137(34), 11095-11104 (2015-08-06)
Mandelic acids are prototypic chiral molecules where the sensitivity of crystallized forms (enantiopure/racemic compound/polymorphs) to both conditions and substituents provides a new insight into the factors that may allow chiral separation by crystallization. The determination of a significant number of
Chandi C Malakar et al.
Organic & biomolecular chemistry, 10(19), 3899-3905 (2012-04-14)
Cu(I)-catalyzed reaction of o-bromobenzaldehydes with β-ketoesters using Cs(2)CO(3) as a base and 2-picolinic acid as an additive proceeds under mild conditions and gives access to substituted naphthalenes in a single step with yields ranging from 71 to 86%. The new
Mikhail A Filatov et al.
Organic & biomolecular chemistry, 13(25), 6977-6983 (2015-05-30)
Fusion with a 9,10-anthraquinone moiety was achieved to extend porphyrin's π-system. A bridged dihydroisoindole derivative was used to prepare the corresponding meso-tetraphenyltetraanthraquinonoporphyrin (Ph4TAQP) via a thermal retro-Diels-Alder reaction. The basic optical properties of the prepared new anthraquinonoporphyrin and its complexes
Rosario Sánchez-Gómez et al.
Journal of agricultural and food chemistry, 62(45), 10861-10872 (2014-10-23)
Vine-shoots are an important waste in all viticulture areas that should be re-used with innovative applications. The aim of this work was to produce Airén waste vine-shoot aqueous extracts by four solid-liquid extraction techniques such as conventional solid-liquid extraction (CSLE)
Supercritical fluid extraction of volatile components from Bunium persicum Boiss.(black cumin) and Mespilus germanica L.(medlar) seeds
Pourmortazavi SM, et al.
J. Food Compos. Anal., 18(5), 439-446 (2005)
Matthias Glaser et al.
Journal of nuclear medicine : official publication, Society of Nuclear Medicine, 54(11), 1981-1988 (2013-10-12)
Human epidermal growth factor receptor (HER2)-targeted Affibody molecules radiolabeled with (18)F allow the noninvasive assessment of HER2 status in vivo through PET imaging. Such agents have the potential to improve patient management by selecting individuals for HER2-targeted therapies and allowing
Jiadong Gui et al.
Journal of agricultural and food chemistry, 63(31), 6905-6914 (2015-07-28)
It was generally thought that aroma of oolong tea resulted from hydrolysis of glycosidically bound volatiles (GBVs). In this study, most GBVs showed no reduction during the oolong tea manufacturing process. β-Glycosidases either at protein or gene level were not
Masazumi Tamura et al.
Nature communications, 6, 8580-8580 (2015-10-06)
Multidentate materials formed by simply mixing heterogeneous and homogeneous components are promising for construction of versatile active sites on the surface of heterogeneous compounds, however, to the best of our knowledge, there are no reports on such materials. Self-assembly of
C Anitha et al.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 96, 493-500 (2012-06-26)
A series of metal(II) complexes of VO(II), Co(II), Ni(II), Cu(II) and Zn(II) have been synthesized from the azo Schiff base ligand 4-((E)-4-((E)-(4-chlorophenyl)diazenyl)-2-hydroxybenzylideneamino)-1,5-dimethyl-2-phenyl-1H-pyrazol-3(2H)-one (CDHBAP) and characterized by elemental analysis, spectral (IR, UV-Vis, (1)H NMR, ESR and EI-mass), magnetic moment measurements, molar
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