Results 21 to 30 of about 4,745,426 (259)

Determination of Lactate by Sequential Injection Analysis Using a Fluoride Ion-selective Electrode Detector

Electrochemistry, 2020
A combination of sequential Injection Analysis (SIA) system and the ion-selective electrode (ISE) detector is considered to be one of a very effective analytical method. Reaction of lactate with lactate oxidase produces pyruvic acid and hydrogen peroxide.
Yuichi TAKAHASHI, Takashi MASADOME
doaj   +1 more source

A study on fluctuation of hydrogen ion concentration (pH) in Pagladia river of Assam

, 2013
The present study was carried out for the fluctuation of water hydrogen ion concentration (pH) inPagladia river during the period of 2009-2010. The hydrogen ion concentration (pH) in this study rangedfrom 6.64 to 7.20 at different stations with little ...
H. Das (395611), A. Dutta (395612)
core   +1 more source

Emerging experimental and computational methods for studying redox‐regulated structural transitions

FEBS Letters, EarlyView.
Redox reactions can reshape proteins and alter how they behave in cells, with important consequences for health and disease. This review explores emerging experimental and computational approaches for discovering these redox‐sensitive protein switches, revealing their structural effects, and predicting their behavior, opening new opportunities to ...
Tasneem Rass, Dana Reichmann, Gábor Erdős   +2 more
wiley   +1 more source

Free Radical Generation From Hydrazine Decomposition Catalyzed by Pt/SiO2 in Different Acid-Base Systems

He huaxue yu fangshe huaxue
Electron spin resonance spectroscopy(ESR) was used to investigate the effects of hydrogen ion concentration and hydroxide concentration in perchloric acid system and sodium hydroxide system on the state and behavior of free radicals generated by ...
LI Bin, HAO Shuai, ZHANG Qiu-yue, XIA Liang-shu, HE Hui   +4 more
doaj   +1 more source

The Determination of Hydrogen Ion Concentration in Connection With Fresh-Water Biological Studies

, 1923
It is accordingly the purpose of this paper to show ( 1) that hydrogen ion concentration is one of the factors governing the movement and distribution of fishes, its importance on the whole probablyequaling that of well-known factors; (2) that breeding ...
Shelford, Victor
core   +1 more source

Structural and biochemical analysis of a B12 superbinder

FEBS Letters, EarlyView.
BtuG proteins are vitamin B12 scavengers in Bacteroides thetaiotaomicron, a dominant human gut bacterium. We present crystal structures of three BtuG homologs bound to cobalamin and its precursor cobinamide, revealing picomolar binding affinities, among the highest known for any natural protein.
Jose M. Martinez Felices, Jacob J. Whittaker, Dirk J. Slotboom, Albert Guskov   +3 more
wiley   +1 more source

Energy-efficient modular water purification system via concurrent freshwater and hydrogen generation using ion concentration polarization

Communications Materials
This study demonstrates a compact, modular platform that simultaneously generates freshwater and hydrogen gas by leveraging nanoelectrokinetic ion concentration polarization through cation-exchange membranes (CEMs).
Jihee Park, Sehyuk Yoon, Myeonghyeon Cho, Dongguen Eom, Beomjoon Kim, Hyomin Lee, Wonseok Kim, Sangwook Park, Sungjae Ha, Sung Jae Kim   +9 more
doaj   +1 more source

Structures of mycobacterial 3‐methylcrotonyl‐CoA carboxylase reveal carrier‐domain translocation between catalytic sites

FEBS Letters, EarlyView.
Mycobacterial 3‐methylcrotonyl‐CoA carboxylase uses a mobile biotin‐carrying domain to shuttle a carboxyl group between two catalytic sites, enabling carboxylation of 3‐methylcrotonyl‐CoA during leucine breakdown. Cryo‐electron microscopy captures the carrier at both sites and reveals an inward loop movement that may prevent futile rebinding to the ...
Ajit Yadav, Bogdan I. Florea, Sebastian Geibel   +2 more
wiley   +1 more source

Palladium based membranes and membrane reactors for hydrogen production and purification:An overview of research activities at Tecnalia and TU/e [PDF]

, 2016
In this paper, the main achievements of several European research projects on Pd based membranes and Pd membrane reactors for hydrogen production are reported.
E. Fernandez, Spallina, V., de Nooijer, N.C.A., A. Arratibel, F. Gallucci, D.A. Pacheco Tanaka, Melendez, J., Gallucci, F., Pacheco Tanaka, D. A., M. van Sint Annaland, Zuniga Palacio, Jon, Zuñiga, J., Fernandez, Ekain, Arratibel, A., Helmi Siasi Farimani, A., V. Spallina, Fernandez, E., Helmi, A., J. Melendez, Medrano Jimenez, J.A., de Nooijer, N. C.A., Coenen, K.T., Pacheco Tanaka, D.A., Melendez Rey, J., Viviente, J. L., J.L. Viviente, Medrano, J. A., van Sint Annaland, M., J. Zuñiga, Gallucci, F.; id_orcid, Coenen, K., K. Coenen, Viviente, J.L., A. Helmi, J.A. Medrano, Spallina, V.; id_orcid, Arratibel Plazaola, A., N.C.A. de Nooijer   +37 more
core   +1 more source

Water sorption and solubility of glass ionomer cements indicated for atraumatic restorative treatment considering the time and the pH of the storage solution

RGO: Revista Gaúcha de Odontologia, 2018
Objective: Evaluate the water sorption and the solubility of glass ionomer cements considering the time and the pH of the storage solution. Methods: The materials used in this survey study were the following ones: Ketac Molar Easymix, Maxxion R, Vitro ...
Renally Bezerra Wanderley e LIMA, Julyanna Filgueiras Gonçalves de FARIAS, Ana Karina Maciel ANDRADE, Fábia Danielle Sales da Cunha Medeiros e SILVA, Rosângela Marques DUARTE   +4 more
doaj   +1 more source