w255904

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Impact of peroxydisulfate in the presence of zero valent iron on the oxidation of cyclohexanoic acid and naphthenic acids from oil sands process-affected water.

Przemysław Drzewicz et al.

Environmental science & technology, 46(16), 8984-8991 (2012-07-18)

Large volumes of oil sands process-affected water (OSPW) are produced during the extraction of bitumen from oil sands in Alberta, Canada. The degradation of a model naphthenic acid, cyclohexanoic acid (CHA), and real naphthenic acids (NAs) from OSPW were investigated

Gender-specific effects of a phytogenic feed additive on performance, intestinal physiology and morphology in broiler chickens.

E Humer et al.

Journal of animal physiology and animal nutrition, 99(4), 788-800 (2014-07-31)

To date, most studies published were carried out on broilers of the same sex, and possible gender-specific effects of phytogenic substances have not been investigated so far. A 3 × 2 factorial study was performed to examine gender-specific effects of a PFA

Systemic protection through remote ischemic preconditioning is spread by platelet-dependent signaling in mice.

Christian E Oberkofler et al.

Hepatology (Baltimore, Md.), 60(4), 1409-1417 (2014-04-05)

Remote ischemic preconditioning (RIPC), the repetitive transient mechanical obstruction of vessels at a limb remote to the operative site, is a novel strategy to mitigate distant organ injury associated with surgery. In the clinic, RIPC has demonstrated efficacy in protecting

Displacement of hexanol by the hexanoic acid overoxidation product in alcohol oxidation on a model supported palladium nanoparticle catalyst.

Avram M Buchbinder et al.

Journal of the American Chemical Society, 133(44), 17816-17823 (2011-09-17)

This work characterizes the adsorption, structure, and binding mechanism of oxygenated organic species from cyclohexane solution at the liquid/solid interface of optically flat alumina-supported palladium nanoparticle surfaces prepared by atomic layer deposition (ALD). The surface-specific nonlinear optical vibrational spectroscopy, sum-frequency

Statistical approach to study the interactive effects of process parameters for enhanced xylitol production by Candida tropicalis and its potential for the synthesis of xylitol monoesters.

Swati Misra et al.

Food science and technology international = Ciencia y tecnologia de los alimentos internacional, 19(6), 535-548 (2013-06-05)

Previous results showed that an indigenously isolated yeast strain of Candida tropicalis was found to produce 12.11 g/L of xylitol under unoptimized conditions in presence of 50 g/L of xylose. In the present study, optimizing the process using one-variable at-a-time resulted in

Comparison of cell attachment and caseinolytic activities of five tumour cell types.

J Varani et al.

Journal of cell science, 34, 133-144 (1978-12-01)

We have examined the ability of 5 tumour cell types to attach to plastic flasks in medium containing either 10% foetal calf serum or 10% normal human serum and compared this ability with cell-associated caseinolytic activity. The cell types used

Solid phase microextraction, mass spectrometry and metabolomic approaches for detection of potential urinary cancer biomarkers--a powerful strategy for breast cancer diagnosis.

Catarina L Silva et al.

Talanta, 89, 360-368 (2012-01-31)

A sensitive assay to identify volatile organic metabolites (VOMs) as biomarkers that can accurately diagnose the onset of breast cancer using non-invasively collected clinical specimens is ideal for early detection. Therefore the aim of this study was to establish the

Development and performance evaluation of a novel dynamic headspace vacuum transfer "In Trap" extraction method for volatile compounds and comparison with headspace solid-phase microextraction and headspace in-tube extraction.

Pascal Fuchsmann et al.

Journal of chromatography. A, 1601, 60-70 (2019-06-11)

Headspace in-tube extraction (HS-ITEX) and solid phase microextraction (HS-SPME) sampling, followed by gas chromatography-mass spectrometry (GC-MS), are widely used to analyze volatile compounds in various food matrices. While the extraction efficiency of volatile compounds from foodstuffs is crucial for obtaining

Lesch-Nyhan syndrome: reduced amino acid concentrations in CSF and brain.

R A Harkness

Advances in experimental medicine and biology, 253A, 159-163 (1989-01-01)

Molecular self assembly of mixed comb-like dextran surfactant polymers for SPR virus detection.

Katanchalee Mai-Ngam et al.

Carbohydrate polymers, 112, 440-447 (2014-08-19)

The synthesis of two comb-like dextran surfactant polymers, that are different in their dextran molecular weight (MW) distribution and the presence of carboxylic groups, and their characterization are reported. A bimodal carboxylic dextran surfactant polymer consists of poly(vinyl amine) (PVAm)

Vine-shoot waste aqueous extracts for re-use in agriculture obtained by different extraction techniques: phenolic, volatile, and mineral compounds.

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)

Validation of an automated procedure for the prediction of relative free energies of binding on a set of aldose reductase inhibitors.

Anna Maria Ferrari et al.

Bioorganic & medicinal chemistry, 15(24), 7865-7877 (2007-09-18)

Among the available methods for predicting free energies of binding of ligands to a protein, the molecular mechanics Poisson-Boltzmann surface area (MM-PBSA) and molecular mechanics generalized Born surface area (MM-GBSA) approaches have been validated for a relatively limited number of

Efficient (18)F-labeling of large 37-amino-acid pHLIP peptide analogues and their biological evaluation.

Pierre Daumar et al.

Bioconjugate chemistry, 23(8), 1557-1566 (2012-07-13)

Solid tumors often develop an acidic microenvironment, which plays a critical role in tumor progression and is associated with increased level of invasion and metastasis. The 37-residue pH (low) insertion peptide (pHLIP) is under study as an imaging platform because

Protic ionic liquids (PILs) nanostructure and physicochemical properties: development of high-throughput methodology for PIL creation and property screens.

Tamar L Greaves et al.

Physical chemistry chemical physics : PCCP, 17(4), 2357-2365 (2014-12-06)

A high-throughput approach was developed in order to prepare and dry a series of protic ionic liquids (PILs) from 48 Brønsted acid-base combinations. Many combinations comprised an alkyl carboxylic acid paired with an alkyl amine. Visual screens were developed to

Comparison of Aroma-Active Volatiles in Oolong Tea Infusions Using GC-Olfactometry, GC-FPD, and GC-MS.

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

Identification of 2-mercaptohexanoic acids as dual inhibitors of 5-lipoxygenase and microsomal prostaglandin E₂ synthase-1.

Christine Greiner et al.

Bioorganic & medicinal chemistry, 19(11), 3394-3401 (2011-05-17)

5-Lipoxygenase (5-LO) and microsomal prostaglandin E₂ synthase (mPGES)-1 are key enzymes in the biosynthesis of leukotrienes and prostaglandin (PG)E₂, respectively, and are considered as valuable targets for the treatment of inflammatory diseases. Here, we present the identification of 2-mercaptohexanoic acid

Complexation-triggerable liposome mixed with silk protein and chitosan.

Yeon-Ji Hong et al.

Journal of biomaterials science. Polymer edition, 26(12), 766-779 (2015-06-11)

Complexation-triggerable liposomes were prepared by modifying the surface of egg phosphatidylcholine (EPC) liposomes with hydrophobicized silk fibroin (HmSF) and hydrophobicized chitosan (HmCh). Maximum complexation, determined by measuring the diameter of complexation, was found when the ratio of HmSF to HmCh

Photo-initiated crosslinking extends mapping of the protein-protein interface to membrane-embedded portions of cytochromes P450 2B4 and b₅.

Tomáš Ječmen et al.

Methods (San Diego, Calif.), 89, 128-137 (2015-08-04)

Protein-protein interactions play a central role in the regulation of many biochemical processes (e.g. the system participating in enzyme catalysis). Therefore, a deeper understanding of protein-protein interactions may contribute to the elucidation of many biologically important mechanisms. For this purpose

Short chain fatty acids (propionic and hexanoic) decrease Staphylococcus aureus internalization into bovine mammary epithelial cells and modulate antimicrobial peptide expression.

Nayeli Alva-Murillo et al.

Veterinary microbiology, 155(2-4), 324-331 (2011-09-21)

Short chain fatty acids (SCFAs) are critical nutrients for ruminants and are mainly obtained from bacterial fermentation of carbohydrates. In addition to their nutrimental function, SCFAs have antimicrobial and anti-inflammatory properties, as well as immunomodulatory roles. It has been reported

Cell-associated proteases affect tumour cell migration in vitro.

J Varani et al.

Journal of cell science, 36, 241-252 (1979-04-01)

The in vitro migratory activity of mouse fibrosarcoma cells in medium containing either foetal calf serum or normal human serum was studied. These 2 sera were studied because foetal calf serum contains high levels of protease inhibitor activity while human

Review of the toxicologic properties of medium-chain triglycerides.

K A Traul et al.

Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association, 38(1), 79-98 (2000-02-24)

Medium chain triglycerides (MCTs) are a family of triglycerides, containing predominantly, caprylic (C(8)) and capric (C(10)) fatty acids with lesser amounts of caproic (C(6)) and lauric (C(12)) fatty acids. MCTs are widely used for parenteral nutrition in individuals requiring supplemental

Olfactometry profiles and quantitation of volatile sulfur compounds of Swiss tilsit cheeses.

Fuchsmann P, et al.

Journal of Agricultural and Food Chemistry, 63(34), 7511-7521 (2015)

Influence of a Neighboring Charged Group on Hydrophobic Hydration Shell Structure.

Joel G Davis et al.

The journal of physical chemistry. B, 119(29), 9417-9422 (2014-11-22)

Raman multivariate curve resolution (Raman-MCR), as well as quantum and classical calculations, are used to probe water structural changes in the hydration shells of carboxylic acids and tetraalkyl ammonium ions with various aliphatic chain lengths. The results reveal that water

Automated screening of urine samples for carbohydrates, organic and amino acids after treatment with urease.

J D Shoemaker et al.

Journal of chromatography, 562(1-2), 125-138 (1991-01-02)

Eighty-five clinical urine samples and nineteen urine samples previously found by other laboratories to suggest genetic metabolic defects were prepared for trimethylsilylation by treatment with urease, followed by azeotropic dehydration. The "Target Analyte Search" program provided with the VG Trio

Optimization of hydrolysis and volatile fatty acids production from sugarcane filter cake: Effects of urea supplementation and sodium hydroxide pretreatment.

Leandro Janke et al.

Bioresource technology, 199, 235-244 (2015-08-19)

Different methods for optimization the anaerobic digestion (AD) of sugarcane filter cake (FC) with a special focus on volatile fatty acids (VFA) production were studied. Sodium hydroxide (NaOH) pretreatment at different concentrations was investigated in batch experiments and the cumulative

Allergic contact cheilitis caused by ditrimethylolpropane triethylhexanoate in a lipstick.

Maiko Miura et al.

Contact dermatitis, 64(5), 301-302 (2011-04-13)

The effect of aliphatic carboxylic acids on olfaction-based host-seeking of the malaria mosquito Anopheles gambiae sensu stricto.

Renate C Smallegange et al.

Journal of chemical ecology, 35(8), 933-943 (2009-07-25)

The role of aliphatic carboxylic acids in host-seeking response of the malaria mosquito Anopheles gambiae sensu stricto was examined both in a dual-choice olfactometer and with indoor traps. A basic attractive blend of ammonia + lactic acid served as internal

Improved DNA microarray detection sensitivity through immobilization of preformed in solution streptavidin/biotinylated oligonucleotide conjugates.

E Mavrogiannopoulou et al.

Colloids and surfaces. B, Biointerfaces, 128, 464-472 (2015-03-26)

A novel immobilization approach involving binding of preformed streptavidin/biotinylated oligonucleotide conjugates onto surfaces coated with biotinylated bovine serum albumin is presented. Microarrays prepared according to the proposed method were compared, in terms of detection sensitivity and specificity, with other immobilization

Correlating wine quality indicators to chemical and sensory measurements.

Helene Hopfer et al.

Molecules (Basel, Switzerland), 20(5), 8453-8483 (2015-05-20)

Twenty-seven commercial Californian Cabernet Sauvignon wines of different quality categories were analyzed with sensory and chemical methods. Correlations between five quality proxies-points awarded during a wine competition, wine expert scores, retail price, vintage, and wine region-were correlated to sensory attributes

Structural variation governs substrate specificity for organic anion transporter (OAT) homologs. Potential remote sensing by OAT family members.

Gregory Kaler et al.

The Journal of biological chemistry, 282(33), 23841-23853 (2007-06-08)

Organic anion transporters (OATs, SLC22) interact with a remarkably diverse array of endogenous and exogenous organic anions. However, little is known about the structural features that determine their substrate selectivity. We examined the substrate binding preferences and transport function of

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