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https://www.readbyqxmd.com/read/28817774/efficient-concentration-of-indium-iii-from-aqueous-solution-using-layered-silicates
#1
Natthawut Homhuan, Sareeya Bureekaew, Makoto Ogawa
A synthetic layered alkali silicate, magadiite, and a natural montmorillite were found to concentrate indium(III) ion from aqueous solution by ion exchange reactions. The adsorption was examined by the reaction between silicates and aqueous solution of indium(III) chloride of different concentration at room temperature for 10 min. The adsorption isotherms were H type, indicating strong interactions between the silicates and indium(III) ion. The maximum adsorbed indium(III) amount for magadiite was quite high, ca...
August 17, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/28817287/visible-light-induced-oxidative-chlorination-of-alkyl-sp-3-c-h-bonds-with-nacl-oxone-at-room-temperature
#2
Mengdi Zhao, Wenjun Lu
A visible light-induced monochlorination of cyclohexane with sodium chloride (5:1) has been successfully accomplished to afford chlorocyclohexane in excellent yield by using Oxone as the oxidant in H2O/CF3CH2OH at room temperature. Other secondary and primary alkyl sp(3) C-H bonds of cycloalkanes and functional branch/linear alkanes can also be chlorinated, respectively, under similar conditions. The selection of a suitable organic solvent is crucial in these efficient radical chlorinations of alkanes in two-phase solutions...
August 17, 2017: Organic Letters
https://www.readbyqxmd.com/read/28817275/influence-of-sodium-chloride-on-the-formation-and-dissociation-behavior-of-co2-gas-hydrates
#3
Christine Carola Holzammer, Judith Maria Schicks, Stefan Will, Andreas Siegfried Braeuer
We present an experimental study on the formation and dissociation characteristics of carbon dioxide (CO2) gas hydrates using Raman spectroscopy. The CO2 hydrates were formed from sodium-chloride/water solutions with salinities of 0-10 wt-%, which were pressurized with liquid CO2 in a stirred vessel at 6 MPa and a subcooling of 9.5 K. The formation of the CO2 hydrate resulted in a hydrate gel where the solid hydrate can be considered as the continuous phase that includes small amounts of a dispersed liquid water-rich phase that has not been converted to hydrate...
August 17, 2017: Journal of Physical Chemistry. B
https://www.readbyqxmd.com/read/28816548/dietary-supplementation-with-virgin-coconut-oil-improves-lipid-profile-and-hepatic-antioxidant-status-and-has-potential-benefits-on-cardiovascular-risk-indices-in-normal-rats
#4
Ademola C Famurewa, Chima A Ekeleme-Egedigwe, Sophia C Nwali, Ngozi N Agbo, Joy N Obi, Goodness C Ezechukwu
Research findings that suggest beneficial health effects of dietary supplementation with virgin coconut oil (VCO) are limited in the published literature. This study investigated the in vivo effects of a 5-week VCO-supplemented diet on lipid profile, hepatic antioxidant status, hepatorenal function, and cardiovascular risk indices in normal rats. Rats were randomly divided into 3 groups: 1 control and 2 treatment groups (10% and 15% VCO-supplemented diets) for 5 weeks. Serum and homogenate samples were used to analyze lipid profile, hepatorenal function markers, hepatic activities of antioxidant enzymes, and malondialdehyde level...
August 17, 2017: Journal of Dietary Supplements
https://www.readbyqxmd.com/read/28815368/proteomics-analysis-identified-a-drt-protein-involved-in-arsenic-resistance-in-populus
#5
Yanli Liu, Rebecca Njeri Damaris, Pingfang Yang
A DRT protein was identified and proved to be involved in the poplar arsenic resistance through comparative proteomics analysis between arsenic sensitive and resistant cultivars. Arsenic pollution in soil has been a serious problem all over the world. It is very important to dissect plants arsenic stress-response mechanisms in phytoremediation. In this study, arsenate-tolerant Populus deltoides cv. 'zhonglin 2025' and arsenate-sensitive Populus × euramericana cv. 'I-45/51' were screened from 10 poplar varieties...
August 16, 2017: Plant Cell Reports
https://www.readbyqxmd.com/read/28815010/development-and-characterisation-of-a-low-concentration-sodium-dodecyl-sulphate-decellularised-porcine-dermis
#6
Jack A Helliwell, Daniel S Thomas, Vaia Papathanasiou, Shervanthi Homer-Vanniasinkam, Amisha Desai, Louise M Jennings, Paul Rooney, John N Kearney, Eileen Ingham
The aim of this study was to adapt a proprietary decellularisation process for human dermis for use with porcine skin. Porcine skin was subject to: sodium chloride (1 M) to detach the epidermis, trypsin paste to remove hair follicles, peracetic acid (0.1% v/v) disinfection, washed in hypotonic buffer and 0.1% (w/v) sodium dodecyl sulphate in the presence of proteinase inhibitors followed by nuclease treatment. Cellular porcine skin, decellularised porcine and human dermis were compared using histology, immunohistochemistry, GSL-1 lectin (alpha-gal epitope) staining, biochemical assays, uniaxial tensile and in vitro cytotoxicity tests...
January 2017: Journal of Tissue Engineering
https://www.readbyqxmd.com/read/28812956/toxicity-identification-and-evaluation-for-the-effluent-from-a-nonmetallic-mineral-mining-facility-in-korea-using-d-magna
#7
Sungjong Lee, Hongjoo Ha, JinKyung Hong, Guyoung Kang, Chunsang Hong
Industrial wastewater has attracted increasing attention in recent years because of its impact on ecosystems and human health. Whole-effluent tests are generally used to monitor toxicities of unknown chemicals and conventional pollutants from industrial effluent discharges. This study described identification evaluation (TIE) procedures to determine the acute toxicity of a nonmetallic mineral mining facility effluent that was toxic to Daphnia magna. In the characterization step (TIE phase I), toxic effects of heavy metals, organic compounds, oxidants, volatile organic compounds, suspended solids, and ammonia were screened...
January 1, 2017: Toxicology and Industrial Health
https://www.readbyqxmd.com/read/28812902/charge-effects-on-the-efflorescence-in-single-levitated-droplets
#8
Gunter Hermann, Yan Zhang, Bernhard Wassermann, Henry Fischer, Marcel Quennet, Eckart Ruehl
The influence of electrical excess charges on the crystallization from supersaturated aqueous sodium chloride solutions is reported. This is accomplished by efflorescence studies on single levitated microdroplets using optical and electrodynamic levitation. Specifically, a strong increase in efflorescence humidity is observed as a function of the droplet's negative excess charge, ranging up to -2.1 pC, with a distinct threshold behavior, increasing the relative efflorescence humidity, at which spontaneous nucleation occurs, from 44% for the neutral microparticle to 60%...
August 16, 2017: Journal of Physical Chemistry. A
https://www.readbyqxmd.com/read/28811748/salivary-diagnostic-markers-in-males-and-females-during-rest-and-exercise
#9
Kay Rutherfurd-Markwick, Carlene Starck, Deborah K Dulson, Ajmol Ali
BACKGROUND: Saliva is a useful diagnostic tool for analysis in sports, exercise and nutrition research, as collection is easy and non-invasive and it contains a large number of analytes affected by a range of physiological and pathological stressors and conditions. This study examined key salivary electrolytes and stress and immune markers in males and females at rest and during exercise. METHODS: Unstimulated whole saliva from 20 healthy, recreationally active participants (8 males and 12 females) was analysed for flow rate, osmolality, sodium (Na(+)), potassium (K(+)), chloride (Cl(-)), secretory immunoglobulin A (SIgA), α-amylase activity and cortisol during both rest and moderate intensity (70% peak power) cycling exercise in a randomised crossover design...
2017: Journal of the International Society of Sports Nutrition
https://www.readbyqxmd.com/read/28811162/engineering-peptidoglycan-degradation-related-genes-of-bacillus-subtilis-for-better-fermentation-processes
#10
Liang Zhao, Jianwen Ye, Jing Fu, Guo-Qiang Chen
In this study, Bacillus subtilis 168 Δupp was engineered to change the bacterial shapes. Namely, some peptidoglycan hydrolase related genes were inactivated individually or in different combinations, including sigD, lytE, lytF, lytC, lytD and lytG. Inactivations of these genes resulted in various intensities of blockages on cell division, leading to elongation of bacterial cells. The resulted fiber phenotypes showed different lengths ranging from tens of microns to several millimeters. Mutants with multiple gene inactivations such as ΔsigDΔlytEΔlytD showed more easily precipitated phenomenon, obviously increased growth rate, more sensitive to antibiotics and improved α-amylase production compared with that of B...
June 23, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28809417/co9s8-nanoparticles-anchored-on-nitrogen-and-sulfur-dual-doped-carbon-nanosheets-as-highly-efficient-bifunctional-electrocatalyst-for-oxygen-evolution-and-reduction-reactions
#11
Can Wu, Yuhang Zhang, Duo Dong, Haiming Xie, Jinghong Li
To promote the practical application of electrochemical energy storage and conversion systems, nonprecious electrocatalysts of low cost and with highly efficient performance in oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) are highly desired. In this work, a cubic sodium chloride (NaCl) crystal-templated strategy is proposed for coupling Co9S8 nanoparticles to nitrogen- and sulfur-doped carbon nanosheets (Co9S8/N,S-CNS) by facile pyrolysis. The nitrogen and sulfur dual-doped carbon nanosheets can effectively prevent the aggregation of Co9S8 nanoparticles and greatly improve the conductivity of the hybrid structure...
August 15, 2017: Nanoscale
https://www.readbyqxmd.com/read/28808008/mathematical-model-reveals-role-of-nucleotide-signaling-in-airway-surface-liquid-homeostasis-and-its-dysregulation-in-cystic-fibrosis
#12
Conner I Sandefur, Richard C Boucher, Timothy C Elston
Mucociliary clearance is composed of three components (i.e., mucin secretion, airway surface hydration, and ciliary-activity) which function coordinately to clear inhaled microbes and other foreign particles from airway surfaces. Airway surface hydration is maintained by water fluxes driven predominantly by active chloride and sodium ion transport. The ion channels that mediate electrogenic ion transport are regulated by extracellular purinergic signals that signal through G protein-coupled receptors. These purinoreceptors and the signaling pathways they activate have been identified as possible therapeutic targets for treating lung disease...
August 14, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28807726/the-value-of-venous-blood-gas-analysis-in-the-diagnosis-of-diabetic-ketoacidosis
#13
Jawad Ibrahim Rasheed, Manal Khudder Abdul Razak, Ahmed Amer Abdul Hussein
BACKGROUND & AIM: Newer blood gas analyzers have the ability to report electrolyte values and glucose in addition to pH, so this diagnostic process could be condensed in diagnosing diabetic ketoacidosis (DKA). We aimed to assess the accuracy of the venous blood gas (VBG) analysis with electrolytes for diagnosing DKA. METHODS: This study prospectively identified a convenience sample of (60 patients) presented with DKA and tested their VBG and serum electrolytes. The diagnosis of DKA was made according to American Diabetes Association criteria...
June 15, 2017: Diabetes & Metabolic Syndrome
https://www.readbyqxmd.com/read/28805678/sodium-chloride-and-its-influence-on-the-aroma-profile-of-yeasted-bread
#14
Markus C E Belz, Claudia Axel, Jonathan Beauchamp, Emanuele Zannini, Elke K Arendt, Michael Czerny
The impact of sodium chloride (NaCl) concentration on the yeast activity in bread dough and its influence on the aroma profile of the baked bread was investigated. Key aroma compounds in the bread samples were analysed by two-dimensional high-resolution gas chromatography-mass spectrometry in combination with solvent-assisted flavour evaporation distillation. High-sensitivity proton-transfer-reaction mass spectrometry was used to detect and quantify 2-phenylethanol in the headspace of the bread dough during fermentation...
August 12, 2017: Foods (Basel, Switzerland)
https://www.readbyqxmd.com/read/28801044/cationic-ionic-liquid-surfactant-polyacrylamide-gel-electrophoresis-for-enhanced-separation-of-acidic-and-basic-proteins-with-single-step-ribonuclease-b-glycoforms-separation
#15
Punprabhashi Vidanapathirana, Farhana Hasan, Kaitlyn Mussio, Anuja Pande, Michael Brands, Noureen Siraj, Anne Grove, Isiah M Warner
Cationic ionic liquids-based surfactants (ILS), such as 4-methyl pyridinium bromide (CnPBr, where n=4,6,8), were used in preparation of polyacrylamide gels, sample buffer, and running buffer for cationic ILS polyacrylamide gel electrophoresis (ILS-PAGE). These ILS are liquids in the pure state and were selected for improved separation of ribonuclease b (Rib b) glycoforms in a single step and a protein mixture containing bovine serum albumin (BSA, pI-4.8, 66.5kDa), ovalbumin (Ova, pI-4.6, 44.3kDa), α-chymotrypsinogen (α-Chy, pI-8...
July 29, 2017: Journal of Chromatography. A
https://www.readbyqxmd.com/read/28800906/solid-phase-analytical-derivatization-for-gas-chromatography-mass-spectrometry-based-metabolomics
#16
Emi Takeo, Ryoichi Sasano, Shuichi Shimma, Takeshi Bamba, Eiichiro Fukusaki
A novel derivatization method for gas chromatography/mass spectrometry (GC/MS)-based metabolomics was developed, based on solid-phase analytical derivatization (SPAD) with methoximation followed by trimethylsilylation. This SPAD method realized derivatization on solid phases combining strong anion exchange with strong cation exchange. To omit a sample condensation process, GC/MS injection was performed using a large-volume injection mode. This mode uses a stomach-shaped insert, and enables a large quantity of sample to be vaporized and introduced into the GC/MS system...
August 8, 2017: Journal of Bioscience and Bioengineering
https://www.readbyqxmd.com/read/28800827/modelling-the-effect-of-water-activity-reduction-by-sodium-chloride-or-glycerol-on-conidial-germination-and-radial-growth-of-filamentous-fungi-encountered-in-dairy-foods
#17
Nicolas Nguyen Van Long, Karim Rigalma, Louis Coroller, Robin Dadure, Stella Debaets, Jérôme Mounier, Valérie Vasseur
Water activity (aw) is one of the most influential abiotic factors affecting fungal development in foods. The effects of aw reduction on conidial germination and radial growth are generally studied by supplementing culture medium with the non-ionic solute glycerol despite food aw can also depend on the concentration of ionic solutes such as sodium chloride (NaCl). The present study aimed at modelling and comparing the effects of aw, either modified using NaCl or glycerol, on radial growth and/or conidial germination parameters for five fungal species occurring in the dairy environment...
December 2017: Food Microbiology
https://www.readbyqxmd.com/read/28799928/greywater-characterization-and-handling-practices-among-urban-households-in-ghana-the-case-of-three-communities-in-kumasi-metropolis
#18
Bismark Dwumfour-Asare, Philomina Adantey, Kwabena Biritwum Nyarko, Eugene Appiah-Effah
Greywater management in Ghana receives little or no attention although untreated greywater is associated with environmental and public health risks. This paper assesses greywater characteristics and handling practices among urban households in three selected communities in Kumasi, the second largest city of Ghana. The study involved in-depth surveys (interviews and observations) with 90 households, and collection of 18 greywater samples from nine greywater sources for laboratory analysis. Average greywater generation is 43...
August 2017: Water Science and Technology: a Journal of the International Association on Water Pollution Research
https://www.readbyqxmd.com/read/28798146/bloody-stools-in-a-3-day-old-term-infant
#19
Amelia Bray-Aschenbrenner, L Richard Feldenberg, Amelia Kirby, Colleen M Fitzpatrick, Justin B Josephsen
A 3-day-old term, male infant presented to the emergency department for evaluation of bloody stools. The infant was born after an uncomplicated pregnancy followed by a normal spontaneous vaginal delivery. The mother was group B Streptococcus colonized, and received antenatal penicillin prophylaxis. The infant received routine delivery room care, and was given ophthalmic erythromycin and intramuscular vitamin K. Circumcision was performed without bleeding and he was discharged from the newborn nursery and the hospital after 48 hours...
August 10, 2017: Pediatrics
https://www.readbyqxmd.com/read/28797808/influence-of-buffer-solutions-in-the-adsorption-of-human-serum-proteins-onto-layered-double-hydroxide
#20
Diego R Gondim, Juan A Cecilia, Santângela O Santos, Thainá N B Rodrigues, José E Aguiar, Enrique Vilarrasa-García, Enrique Rodríguez-Castellón, Diana C S Azevedo, Ivanildo J Silva
The adsorption of human immunoglobulin G (IgG) and human serum albumin (HSA) on a non-calcined Mg-Al layered double hydroxide (3:1 Mg-Al LDH) was studied in batch and fixed bed experiments, focusing on the effect of buffer solution and pH over sorbent uptake. Mg-Al LDH was synthesized and characterized by X-ray diffraction (XRD), N2 adsorption-desorption isotherms at -196°C, X-ray photoelectron spectroscopy (XPS), Zero point charge (pHzpc), particle size distribution and Fourier transform infra-red (FTIR)...
August 7, 2017: International Journal of Biological Macromolecules
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