Results 31 to 40 of about 179,844 (314)

Electrocatalytic Oxidation of Dopamine at Chemically Modified Carbon Paste Electrode with 2,4-Dinitrophenyl Hydrazine

International Journal of Electrochemical Science, 2010
Electrocatalytic oxidation of dopamine was investigated at 2,4-Dinitrophenyl hydrazine modified carbon paste electrode by using cyclic voltammetric technique.
Umesh Chandra, B.E. Kumara Swamy, Ongera Gilbert, S. Sharath Shankar, K.R. Mahanthesha, B.S. Sherigara   +5 more
doaj   +1 more source

An unexpected alternative viologen electron mediator site in tungsten‐containing formate dehydrogenase

FEBS Letters, EarlyView.
An unexpected alternative interaction site for ethyl viologen was identified in formate dehydrogenase 1 from Methylorubrum extorquens. Combined mutagenesis, kinetic analysis, and docking revealed that aromatic residues near an iron–sulfur cluster enable flavin mononucleotide‐independent electron transfer, offering a framework for engineering improved ...
Eleni G. Poloniataki, Yong Hwan Kim
wiley   +1 more source

Electrochemically Reduced Graphene Oxide-nafion/Au Nanoparticle Modified Electrode for Hydrogen Peroxide Sensing

, 2016
n this paper, a non-enzymatic hydrogen peroxide (H2O2) sensor, based on Au nanoparticles (AuNPs) electrodepos‐ ited on an electrochemically reduced graphene oxide(ER‐ GO)-Nafion modified glass carbon electrode (GCE), was reported. The graphene oxide-(GO-)
Yajie Lv, Jianfang Wang, Fang Wang, Hui Zhu, Xiaorong Zou, Cheng-an Tao   +5 more
core   +1 more source

Electrochemical determination of tryptophan at room-temperature ionic liquid-titanium carbide nanoparticle gel modified electrode [PDF]

, 2015
The novel gel composite, based on the ground of ionic liquid (1-butyl-3-methylimidazolium hexafluorophosphate, BMIMPF6) and titanium carbide (TiC) nanoparticles, was used to modify glassy carbon electrode and applied to the electrochemical determination ...
Pan, Dawei, Lin, Mingyue, Kang, Qi, Kang, Q (reprint author), Shandong Normal Univ, Coll Chem Chem Engn & Mat Sci, Minist Educ China, Key Lab Mol & Nanomat Probes, Jinan, Shandong 250014, Peoples R China. dwpan@yic.ac.cn, Li, Fei, Zhang, Qing   +5 more
core   +1 more source

Preparation of Platinum Nanoparticles-Graphene Modified Electrode and Selective Determination of Rutin

International Journal of Electrochemistry, 2012
Platinum nanoparticles were electrodeposited on graphene modified glassy carbon electrode to form a modified electrode, and the electrode was characterized with scanning electron microscopy (SEM).
Shu-Hong Yu, Guang-Chao Zhao
doaj   +1 more source

Sensitive Electrochemical Determination of Oxcarbazepine using Polymer Film Modified Glassy Carbon Electrode

International Journal of Electrochemical Science, 2015
A glassy carbon electrode (GCE) is modified with electropolymerized film of p-aminobenzene sulfonic acid (p-ABSA) in pH 7.0 phosphate buffer solution (PBS).
Esra Rukiye Apaydın, Gulsen Saglikoglu, Selehattin Yilmaz, Mustafa Yildiz   +3 more
doaj   +1 more source

EDNRB‐dependent endothelin signaling reduces proliferation and promotes proneural‐to‐mesenchymal transition in gliomas

Molecular Oncology, EarlyView.
Glioma cells mainly express the endothelin receptor EDNRB, while EDNRA is restricted to a perivascular tumor subpopulation. Endothelin signaling reduces glioma cell proliferation while promoting migration and a proneural‐to‐mesenchymal transition associated with poor prognosis. This pathway activates Ca2+, K+, ERK, and STAT3 signalings and is regulated
Donovan Pineau, Leonor Garcia, Hugo Arnold, Antonija Hanžek, Maialen Arrieta, Laurent R Gauthier, Christine Granotier‐Beckers, François D Boussin, Amaury Herbet, Marie Hautière, Valentin Asei‐Ceschino, Clémentin Jacques, Laura Brard, Thomas Harnois, Valérie Coronas, Bruno Constantin, Aurélien Chatelier, Jean Chemin, Serge Urbach, Martial Seveno, Szimonetta Hideg, Chantal Ripoll, Kasandra Aguilar‐Cázarez, Min Zheng, Guo‐Hao Huang, Sheng‐Qing Lv, Lei Zhang, Philippe Rondard, Laurent Prezeau, Jean‐Philippe Pin, Hugues Duffau, Luc Bauchet, Valérie Rigau, Franck Denat, Charles Truillet, Didier Boquet, Jean‐Philippe Hugnot   +36 more
wiley   +1 more source

Carbon paste electrode modified molecularly imprinted polymer as a sensor for creatinine analysis by stripping voltammetry [PDF]

, 2017
Modification of carbon paste electrode with molecularly imprinted polymer (CP-MIP) as a voltammetric sensor for creatinine has been developed. MIP was synthesized by reacting melamine, chloranil and creatinine with a mole ratio of 1:1:0.1. Creatinine was
M. Khasanah, H. Darmokoesoemo, Miratul Khasanah, D. A. Rizki   +3 more
core   +1 more source

Electrochemical Investigations of Dopamine at Chemically Modified Alcian Blue Carbon Paste Electrode: A Cyclic Voltammetric Study

International Journal of Electrochemical Science, 2009
A carbon paste electrode modified by alcian blue was used for detection of dopamine (DA). The modified electrode exhibited strong promoting effect and stability towards the electrochemical oxidation of dopamine at pH 6.6 in phosphate buffer solution (PBS)
Rekha, B.E. Kumara Swamy, R. Deepa, V. Krishna, Ongera Gilbert, Umesh Chandra, B.S. Sherigara   +6 more
doaj   +1 more source

Sudden anaerobization in Amphibacillus xylanus increases intracellular labile ferrous iron and inhibits cell growth

FEBS Open Bio, EarlyView.
Abruptly changing from aerobic to anaerobic conditions (sudden anaerobization) induced growth inhibition and a significant increase in intracellular labile ferrous iron in the aerotolerant anaerobe Amphibacillus xylanus. We found that free flavins mediate efficient electron transfer from NADH to ferric iron under anaerobic conditions, suggesting that ...
Shinya Kimata, Yoichi Sakai, Keisuke Tanaka, Etsuro Yoshimura, Ken Kitano, Morio Ishikawa, Tadahiro Nakamoto, Tsutomu Takayama, Hirofumi Inoue, Kaho Nomura, Tomonori Suzuki, Masataka Uchino, Akira Abe, Youichi Niimura   +13 more
wiley   +1 more source