نتایج جستجو برای: methanol concentration

تعداد نتایج: 407058  

2015
Chien-Fu Fong Ching-Liang Dai Chyan-Chyi Wu

A methanol microsensor integrated with a micro heater manufactured using the complementary metal oxide semiconductor (CMOS)-microelectromechanical system (MEMS) technique was presented. The sensor has a capability of detecting low concentration methanol gas. Structure of the sensor is composed of interdigitated electrodes, a sensitive film and a heater. The heater located under the interdigitat...

2016
Galina A. Polotskaya Mikhail Ya. Goikhman Irina V. Podeshvo Irina A. Valieva Alexander M. Toikka

Copolyamides with anthrazoline units in the backbone (coPA) were synthesized and dense nonporous films were prepared by solvent evaporation. Glass transition temperature, density, and fractional free volume were determined for the dense nonporous films composed of polyamide and two of its copolymers containing 20 and 30 mol % anthrazoline units in the backbone. Transport properties of the polym...

2013
M. F. Shaikh J. Sancheti S. Sathaye

In the present study, anticonvulsant activity of methanol extract of Eclipta alba (10-200 mg/kg) was studied using pentylenetetrazole- and picrotoxin-induced seizure models. Mechanism of effect of methanol extract of Eclipta alba was further elucidated by studying its GABAA receptor modulatory activity and its effect on levels of GABA in mice brain. Methanol extract of Eclipta alba exhibited po...

2012
R. S. Policegoudra S. Saikia J. Das P. Chattopadhyay L. Singh V. Veer

Garcinia lancifolia (Clusiaceae) is an unexplored medicinal plant used as stomachic, diuretic and its fruit is used to cure dysentery and diarrhoea. The acidic fruits are used to prepare juice, pickle and curries. The phytochemical analysis of different extracts of G. lancifolia leaf, stem and fruit revealed the presence of tannins, saponins, flavonoids, terpenoids, alkaloids and cardiac glycos...

2011
Mitesh Parmar

A nanostructured copper (II) oxide film deposited by reactive DC-magnetron sputtering technique, has been studied for static sensor response towards methanol and ethanol by operating temperature and analyte concentration modulations. The optimum operating temperature (Topt) for the sensing of methanol and ethanol is observed to be 350 ̊C and 400 ̊C, respectively. The maximum sensitivity observe...

Journal: :Molecules 2015
Hye-Youn Kim Seul-Gi Lee Taek-Joo Oh Sa Rang Lim So-Hyun Kim Hong Jin Lee Young-Suk Kim Hyung-Kyoon Choi

Chamaecyparis obtusa (CO) belongs to the Cupressaceae family, and it is found widely distributed in Japan and Korea. In this study, the anti-proliferative activities of the methanol and water extracts of CO leaves against a human colorectal cancer cell line (HCT116) were investigated. The methanol extract of CO leaves, at a concentration of 1.25 µg/mL, exhibited anti-proliferative activity agai...

Journal: : 2021

Ficaria verna Huds. is a plant belonging to the Ranunculaceae family, known as mole grass and celandine among people. It have anti-inflammatory anti-haemorrhagic pharmaceutical effects. In this study, it was aimed determine antimicrobial effect of different concentrations F. extracts obtained from methanol, ethanol chloroform antioxidant activity extract methanol. results obtained, best (17-20 ...

Journal: :Critical care medicine 2015
Darren M Roberts Christopher Yates Bruno Megarbane James F Winchester Robert Maclaren Sophie Gosselin Thomas D Nolin Valéry Lavergne Robert S Hoffman Marc Ghannoum

OBJECTIVE Methanol poisoning can induce death and disability. Treatment includes the administration of antidotes (ethanol or fomepizole and folic/folinic acid) and consideration of extracorporeal treatment for correction of acidemia and/or enhanced elimination. The Extracorporeal Treatments in Poisoning workgroup aimed to develop evidence-based consensus recommendations for extracorporeal treat...

Journal: :Brazilian journal of medical and biological research = Revista brasileira de pesquisas medicas e biologicas 2009
D Yiğit N Yiğit A Mavi

The present study describes the in vitro antimicrobial and antioxidant activity of methanol and water extracts of sweet and bitter apricot (Prunus armeniaca L.) kernels. The antioxidant properties of apricot kernels were evaluated by determining radical scavenging power, lipid peroxidation inhibition activity and total phenol content measured with a DPPH test, the thiocyanate method and the Fol...

Journal: :Zeitschrift fur Naturforschung. C, Journal of biosciences 2002
Tsonka Hristozova Tanya Rasheva Trayana Nedeva Anna Kujumdzieva

Hansenula polymorpha CBS 4732 was studied during cultivation on methanol and different glucose concentrations. Activities of Cu/Zn and Mn superoxide dismutase, catalase and methanol oxidase were investigated. During cultivation on methanol, increased superoxide dismutase and catalase activities and an induced methanol oxidase were achieved. Transfer of a methanol grown culture to medium with a ...

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