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Methanol poisoning

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https://www.readbyqxmd.com/read/28206825/letter-in-response-to-efficiency-of-acidemia-correction-on-intermittent-versus-continuous-hemodialysis-in-acute-methanol-poisoning
#1
Lindsay M Fox, Mark K Su, Lewis R Goldfrank
No abstract text is available yet for this article.
April 2017: Clinical Toxicology
https://www.readbyqxmd.com/read/28206824/reply-to-letter-in-response-to-efficiency-of-acidemia-correction-on-intermittent-versus-continuous-hemodialysis-in-acute-methanol-poisoning
#2
Sergey Zakharov, Darren M Roberts, Knut Erik Hovda
No abstract text is available yet for this article.
April 2017: Clinical Toxicology
https://www.readbyqxmd.com/read/28197597/the-effect-of-sodium-species-on-methanol-synthesis-and-water-gas-shift-cu-zno-catalysts-utilising-high-purity-zincian-georgeite
#3
Simon A Kondrat, Paul J Smith, James H Carter, James S Hayward, Geoffrey J Pudge, Greg Shaw, Michael S Spencer, Jonathan K Bartley, Stuart H Taylor, Graham J Hutchings
The effect of sodium species on the physical and catalytic properties of Cu/ZnO catalysts derived from zincian georgeite has been investigated. Catalysts prepared with <100 ppm to 2.1 wt% Na(+), using a supercritical CO2 antisolvent technique, were characterised and tested for the low temperature water-gas shift reaction and also CO2 hydrogenation to methanol. It was found that zincian georgeite catalyst precursor stability was dependent on the Na(+) concentration, with the 2.1 wt% Na(+)-containing sample uncontrollably ageing to malachite and sodium zinc carbonate...
February 15, 2017: Faraday Discussions
https://www.readbyqxmd.com/read/28191327/transdermal-spirit-methanol-poisoning-a-case-report
#4
Hatice Dogan, Banu Yilmaz Karakus, Kubra Serefoglu Cabuk, Ozlem Uzun, Huseyin Yenice, Aysun Orucoglu
INTRODUCTION: Methanol is a highly toxic substance and methanol poisoning results in severe health situations. Methanol poisoning occurs when it is consumed by various methods such as orally, by inhalation, and transdermally. Transdermal poisoning is rarely seen and causes severe health complications. CASE PRESENTATION: A 59-year-old male patient was admitted to the emergency room due to blurred vision and knee pain. He had wrapped alcohol soaked cotton around his knees because of pain, and left it for 10 hours at night...
November 2016: Iranian Red Crescent Medical Journal
https://www.readbyqxmd.com/read/28168440/can-duration-of-hemodialysis-be-estimated-based-on-the-on-arrival-laboratory-tests-and-clinical-manifestations-in-methanol-poisoned-patients
#5
Abdolkarim Pajoumand, Nasim Zamani, Hossein Hassanian-Moghaddam, Shahin Shadnia
PURPOSE: We aimed to evaluate the efficacy of Lachance formula and more readily available clinical or laboratory factors (other than serum methanol level) in prediction of the needed time for hemodialysis in methanol-poisoned patients. METHODS: In a retrospective study, all methanol-poisoned patients referred to us between March 2008 and March 2016 were enrolled. The patients' demographic characteristics, on-arrival vital signs, signs/symptoms, and laboratory tests were evaluated for factors that could prognosticate the dialysis duration...
February 6, 2017: International Urology and Nephrology
https://www.readbyqxmd.com/read/28165820/leukotriene-mediated-neuroinflammation-toxic-brain-damage-and-neurodegeneration-in-acute-methanol-poisoning
#6
Sergey Zakharov, Katerina Kotikova, Olga Nurieva, Jiri Hlusicka, Petr Kacer, Pavel Urban, Manuela Vaneckova, Zdenek Seidl, Pavel Diblik, Pavel Kuthan, Tomas Navratil, Daniela Pelclova
CONTEXT: The role of neuroinflammation in methanol-induced toxic brain damage has not been studied. OBJECTIVE: We studied acute concentrations and the dynamics of leukotrienes (LT) in serum in hospitalized patients with acute methanol poisoning and in survivors. METHODS: Series of acute cysteinyl-LT and LTB4 concentration measurements were performed in 28/101 hospitalized patients (mean observation time: 88 ± 20 h). In 36 survivors, control LT measurements were performed 2 years after discharge...
February 6, 2017: Clinical Toxicology
https://www.readbyqxmd.com/read/28106251/affinity-capillary-electrophoresis-and-quantum-mechanical-calculations-applied-to-investigation-of-gly-6-antamanide-binding-with-sodium-and-potassium-ions
#7
Sachin Pangavhane, Stanislav Böhm, Emanuel Makrlík, Paolo Ruzza, Václav Kašička
Affinity capillary electrophoresis in a free solution (ACE) and quantum mechanical density functional theory (DFT) have been applied to the investigation of interactions of glycine-6-antamanide ([Gly(6) ]AA), a synthetic derivative of cyclic decapeptide antamanide isolated from the highly poisonous mushroom Amanita phalloides, with sodium or potassium ions in methanol. First, from the dependence of effective electrophoretic mobility of [Gly(6) ]AA on Na(+) or K(+) ions concentration in the background electrolyte (BGE) (methanolic solution of 20 mM chloroacetic acid, 10 mM Tris, pHMeOH 7...
January 20, 2017: Electrophoresis
https://www.readbyqxmd.com/read/28106219/surface-and-interface-engineering-of-fept-c-nanocatalysts-for-electro-catalytic-methanol-oxidation-enhanced-activity-and-durability
#8
Junmei Wang, Zhenlei Wang, Shuai Li, Rongming Wang, Yujun Song
A methodology by coupling a microfluidic-batch process with in situ carbon-black mixing, successive annealing and de-alloying post-treatment was developed for engineering surface and interface microstructures of FePt/C nanocomposites. Ultra-small angular FePt nanocrystals rich in vertexes/terraces/steps and with Pt contents gradually increasing from the inner to the outer part can be synthesized at certain Fe/Pt atomic ratios (2/1 or 1.1/1), which can directly grow on carbon-black for enhanced nanocrystal-carbon interface interaction by introducing the in situ carbon-black mixing process...
January 20, 2017: Nanoscale
https://www.readbyqxmd.com/read/28059410/enhanced-electrooxidation-of-glucose-at-nano-chitosan-niooh-modified-gc-electrode-fuel-blends-and-hydrocarbon-impurities
#9
Gumaa A El-Nagar, Christina Roth
The current study addresses, for the first time, the promoting effect of some selected fuel blending components, such as methanol (MeOH), ethanol (EtOH) and acetaldehyde (ACTA), on the glucose electrooxidation at a nano-chitosan-NiOOH modified GC electrode (nano-CS-NiOOH/GC). Blending glucose with different molar ratios of MeOH, EtOH and ACTA results in a significant enhancement in the fuel utilization, NiOOH oxidation capacity and turnover number of oxidized glucose molecules compared to the pure fuels. For instance, the use of glucose fuel blends composed of 40% of glucose with 60% of either MeOH, EtOH and ACTA results in 10, 8 and 5 times higher glucose activity of the nano-CS-NiOOH/GC electrode compared to using glucose as a pure fuel, respectively...
January 18, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28049252/neurological-complications-resulting-from-non-oral-occupational-methanol-poisoning
#10
Ji Hyun Choi, Seung Keun Lee, Young Eun Gil, Jia Ryu, Kyunghee Jung-Choi, Hyunjoo Kim, Jun Young Choi, Sun Ah Park, Hyang Woon Lee, Ji Young Yun
Methanol poisoning results in neurological complications including visual disturbances, bilateral putaminal hemorrhagic necrosis, parkinsonism, cerebral edema, coma, or seizures. Almost all reported cases of methanol poisoning are caused by oral ingestion of methanol. However, recently there was an outbreak of methanol poisoning via non-oral exposure that resulted in severe neurological complications to a few workers at industrial sites in Korea. We present 3 patients who had severe neurological complications resulting from non-oral occupational methanol poisoning...
February 2017: Journal of Korean Medical Science
https://www.readbyqxmd.com/read/28043253/-a-case-report-of-acute-methanol-poisoning-in-a-solid-alcohol-production-workshop
#11
J Y Ai, Y J Wang, J Q Liu
No abstract text is available yet for this article.
October 20, 2016: Chinese Journal of Industrial Hygiene and Occupational Diseases
https://www.readbyqxmd.com/read/28032325/tio2-nanotube-carbon-tnt-c-as-support-for-pt-based-catalyst-for-high-methanol-oxidation-reaction-in-direct-methanol-fuel-cell
#12
M Abdullah, S K Kamarudin, L K Shyuan
In this study, TiO2 nanotubes (TNTs) were synthesized via a hydrothermal method using highly concentrated NaOH solutions varying from 6 to 12 M at 180 °C for 48 h. The effects of the NaOH concentration and the TNT crystal structure on the performance for methanol oxidation were investigated to determine the best catalyst support for Pt-based catalysts. The results showed that TNTs produced with 10 M NaOH exhibited a length and a diameter of 550 and 70 nm, respectively; these TNTs showed the best nanotube structure and were further used as catalyst supports for a Pt-based catalyst in a direct methanol fuel cell...
December 2016: Nanoscale Research Letters
https://www.readbyqxmd.com/read/27960387/microwave-assisted-synthesis-of-highly-dispersed-ptcu-nanoparticles-on-three-dimensional-nitrogen-doped-graphene-networks-with-remarkably-enhanced-methanol-electrooxidation
#13
Xinglan Peng, Duhong Chen, Xiulin Yang, Dongsheng Wang, Mengliu Li, Chien-Chih Tseng, Rajapandiyan Panneerselvam, Xiao Wang, Wenjing Hu, Jianniao Tian, Yanchun Zhao
A well-dispersed PtCu alloy nanoparticles (NPs) on three-dimensional nitrogen-doped graphene (PtCu/3D N-G) electrocatalyst has been successfully synthesized by a conventional hydrothermal method combined with a high-efficiency microwave-assisted polyol process. The morphology, composition, and structures are well-characterized by scanning electron microscopy, transmission electron microscopy, Raman spectroscopy, X-ray powder diffraction, and X-ray photoelectron spectroscopy. Cyclic voltammograms illustrate that the as-prepared PtCu/3D N-G electrocatalyst possesses the larger electrochemical active surface area, lower onset potential, higher current density, and better tolerance to CO poisoning than PtCu NPs on reduced graphene oxide and XC-72 carbon black in acid solution...
December 14, 2016: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/27937112/antifungal-and-antiproliferative-activities-of-endophytic-fungi-isolated-from-the-leaves-of-markhamia-tomentosa
#14
Mutiat Ibrahim, Nutan Kaushik, Abimbola Sowemimo, Hemraj Chhipa, Trevor Koekemoer, Maryna van de Venter, Olukemi A Odukoya
CONTEXT: Plants harbor endophytes with potential bioactivity. Markhamia tomentosa (Benth) K. Schum ex. Engl. (Bignoniaceae) is reported to possess antioxidant, anti-inflammatory and anticancer activities. OBJECTIVE: The antifungal and antiproliferative properties of endophytic fungi extracts and fractions from M. tomentosa were evaluated. MATERIAL AND METHODS: Endophytic fungi were isolated from the leaves of M. tomentosa and identified by ITS-rDNA sequence analysis...
December 2017: Pharmaceutical Biology
https://www.readbyqxmd.com/read/27906402/one-step-synthesis-of-ultrathin-ptxpb-nerve-like-nanowires-as-robust-catalysts-for-enhanced-methanol-electrooxidation
#15
Liang Huang, Yujie Han, Xueping Zhang, Youxing Fang, Shaojun Dong
Ultrathin PtxPb nerve-like nanowires (NNWs) with a diameter of only around 3.6 nm were synthesized by a one-step wet-chemical strategy, and they served as robust catalysts for greatly enhancing methanol electrooxidation both under acidic and alkaline conditions. Due to the high CO-poisoning tolerance, superior electrocatalytic activity and stability endowed by the Pt-Pb alloyed composition and the unique structure, the Pt3.5Pb NNWs showed the highest specific activity of 2.78 mA cm(-2) in acidic media and 6...
January 7, 2017: Nanoscale
https://www.readbyqxmd.com/read/27824191/nitrogen-and-sulfur-co-doping-of-3d-hollow-structured-carbon-spheres-as-an-efficient-and-stable-metal-free-catalyst-for-the-oxygen-reduction-reaction
#16
Zexing Wu, Rong Liu, Jie Wang, Jing Zhu, Weiping Xiao, Cuijuan Xuan, Wen Lei, Deli Wang
Three-dimensional, hollow-structured carbon sphere nanocomposites (N,S-hcs) doped with nitrogen and sulfur were prepared using a soft template approach followed by a high-temperature treatment. The synthesized N,S-hcs nanomaterials exhibited favourable catalytic activity for the oxygen reduction reaction (ORR) compared to carbon spheres doped solely with nitrogen (N-hcs), polypyrrole (PPY) solid nanoparticles and irregular fragments of polyaniline (PAN). These results demonstrated the co-doping of N/S and the relatively large surface area of the mesoporous carbon structure that enhanced the catalytic activity of the resulting material...
December 7, 2016: Nanoscale
https://www.readbyqxmd.com/read/27817225/efficiency-of-acidemia-correction-on-intermittent-versus-continuous-hemodialysis-in-acute-methanol-poisoning
#17
Sergey Zakharov, Daniela Pelclova, Tomas Navratil, Jaromir Belacek, Jiri Latta, Michal Pisar, Jan Rulisek, Jiri Leps, Pavel Zidek, Cyril Kucera, Robert Bocek, Miroslav Mazur, Zdenek Belik, Josef Chalupa, Viktor Talafa, Kamil Kodras, Daniel Nalos, Ctirad Sedlak, Michal Senkyrik, Jan Smid, Tomas Salek, Darren M Roberts, Knut Erik Hovda
CONTEXT: Acidemia is a marker of prognosis in methanol poisoning, as well as compounding formate-induced cytotoxicity. Prompt correction of acidemia is a key treatment of methanol toxicity and methods to optimize this are poorly defined. OBJECTIVE: We studied the efficiency of acidemia correction by intermittent hemodialysis (IHD) and continuous renal replacement therapy (CRRT) in a mass outbreak of methanol poisoning. METHODS: The study was designed as observational cohort study...
February 2017: Clinical Toxicology
https://www.readbyqxmd.com/read/27773285/studies-on-an-ultrasonic-atomization-feed-direct-methanol-fuel-cell
#18
Chaoqun Wu, Linghao Liu, Kai Tang, Tao Chen
Direct methanol fuel cell (DMFC) is promising as an energy conversion device for the replacement of conventional chemical cell in future, owing to its convenient fuel storage, high energy density and low working temperature. The development of DMFC technology is currently limited by catalyst poison and methanol crossover. To alleviate the methanol crossover, a novel fuel supply system based on ultrasonic atomization is proposed. Experimental investigations on this fuel supply system to evaluate methanol permeation rates, open circuit voltages (OCVs) and polarization curves under a series of conditions have been carried out and reported in this paper...
January 2017: Ultrasonics Sonochemistry
https://www.readbyqxmd.com/read/27688906/the-intoxication-effects-of-methanol-and-formic-acid-on-rat-retina-function
#19
Dong-Mei Liu, Shu Zhou, Jie-Min Chen, Shu-Ya Peng, Wen-Tao Xia
UNLABELLED: Objective. To explore the potential effects of methanol and its metabolite, formic acid, on rat retina function. Methods. Sprague-Dawley rats were divided into 3- and 7-day groups and a control. Experimental groups were given methanol and the control group were provided saline by gavage. Retinal function of each group was assessed by electroretinogram. Concentrations of methanol and formic acid were detected by GC/HS and HPLC, respectively. Results. The a and b amplitudes of methanol treated groups decreased and latent periods delayed in scotopic and photopic ERG recordings...
2016: Journal of Ophthalmology
https://www.readbyqxmd.com/read/27668946/ti-3-promoted-high-oxygen-reduction-activity-of-pd-nanodots-supported-by-black-titania-nanobelts
#20
Xiaotao Yuan, Xin Wang, Xiangye Liu, Hongxin Ge, Guoheng Yin, Chenlong Dong, Fuqiang Huang
One-dimensional nanocrystals favoring efficient charge transfer have attracted enormous attentions, and conductive nanobelts of black titania with a unique band structure and high electrical conductivity would be interestingly used in electrocatalysis. Here, Pd nanodots supported by two kinds of black titania, the oxygen-deficient titania (TiO2-x) and nitrogen-doped titania (TiO2-x:N), were synthesized as efficient composite catalysts for oxygen-reduction reaction (ORR). These composite catalysts show improved catalytic activity with lower overpotential and higher limited current, compared to the Pd nanodots supported on the white titania (Pd/TiO2)...
October 4, 2016: ACS Applied Materials & Interfaces
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