Results 41 to 50 of about 16,954 (217)

Electrical resistance of individual defects at a topological insulator surface [PDF]

, 2017
Three-dimensional topological insulators host surface states with linear dispersion, which manifest as a Dirac cone. Nanoscale transport measurements provide direct access to the transport properties of the Dirac cone in real space and allow the detailed
Cherepanov, Vasily, Driesch, Nils von den, Eschbach, Markus, Grützmacher, Detlev, Heider, Tristan, Lanius, Martin, Lüpke, Felix, Mussler, Gregor, Plucinski, Lukasz, Rosenbach, Daniel, Schneider, Claus M., Schüffelgen, Peter, Voigtländer, Bert   +12 more
core   +2 more sources

Electrochemical analysis of antioxidant status of biological media in different sampling and storage conditions [PDF]

Journal of the Serbian Chemical Society
The use of an electrochemical approach for assessment of the oxidative stress severity is a promising direction for point-of-care testing development, which is especially important for critically ill patients.
Goroncharovskaya Irina V., Evseev Anatoly K., Shabanov Aslan K., Petrikov Sergey S.   +3 more
doaj   +1 more source

Electrochemical microsensors for cutaneous surface analysis: Application to the determination of pH and the antioxidant properties of stratum corneum [PDF]

, 2008
Potentiometry and cyclic voltammetry were proposed as simple, reliable and non invasive methods for the simultaneous determination of pH and antioxidant properties of skin.
Baur, Jessica, Comtat, Maurice, Gros, Pierre, Questel, Emmanuel, Ruffien-Ciszak, Audrey   +4 more
core   +2 more sources

Synthesis and Protonation Constants of an Amide-Based Chelating Cyclophane

Molbank, 2006
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Julio Cesar Altamirano-Coronado, Carolina Godoy-Alcántar, Felipe Medrano   +2 more
doaj   +1 more source

Modified planar sensors for the separate detection of certain cephalosporin antibiotics [PDF]

Известия Саратовского университета. Новая серия: Серия Химия. Биология. Экология
Modifi ed screen-printed potentiometric sensors sensitive to cephalosporin antibiotics – cefuroxime (Cefur), cefotaxime (Ceftx), cefazolin (Cef) have been developed. Tetradecylammonium associates with complex compounds silver (I) – cefuroxime
Kulapina, Elena Grigorievna, Mursalov, Ruslan K., Kulapina, Olga Ivanovna   +2 more
doaj   +1 more source

A dedicated haem lyase is required for the maturation of a novel bacterial cytochrome c with unconventional covalent haem binding [PDF]

, 2007
In bacterial c-type cytochromes, the haem cofactor is covalently attached via two cysteine residues organized in a haem c-binding motif. Here, a novel octa-haem c protein, MccA, is described that contains only seven conventional haem c-binding motifs ...
Allen J.W.A., Allen J.W.A., Allen J.W.A., Allen J.W.A., Beliaev A.S., de Vitry C., Dobbin P.S., Hartshorne S., Kroger A., Lorenzen J.P., Mileni M., Moore G.R., Mowat C.G., Scott R.A., Thony-Meyer L., Walker F.A., Wood P.M., Yang F.   +17 more
core   +1 more source

Nanoscale electron transport at the surface of a topological insulator

Nature Communications, 2016
Topological insulators offer lossless surface transport because of the suppression of conduction-electron backscattering from defect sites. Here, the authors show that the nanoscale voltage drops caused by such scattering can be directly measured using ...
Sebastian Bauer, Christian A. Bobisch
doaj   +1 more source

Design and Performance of a Practical Variable-Temperature Scanning Tunneling Potentiometry System

, 2008
We have constructed a scanning tunneling potentiometry system capable of simultaneously mapping the transport-related electrochemical potential of a biased sample along with its surface topography.
Beasley, M. R., Rozler, M.
core   +1 more source

Gallium(III) chelates of mixed phosphonate-carboxylate triazamacrocyclic ligands relevant to nuclear medicine: structural, stability and in vivo studies [PDF]

, 2017
Three triaza macrocyclic ligands, H6NOTP (1,4,7-triazacyclononane-N,N′,N″-trimethylene phosphonic acid), H4NO2AP (1,4,7-triazacyclononane-N-methylenephosphonic acid-N′,N″-dimethylenecarboxylic acid), and H5NOA2P (1,4,7-triazacyclononane-N,N′-bis ...
Alexander, André, André, André, Anett I. Takács, Baes, Bevilacqua, Blower, Bossek, Broan, Campello, Carlos F.G.C. Geraldes, Clarke, Cole, Craig, de Sá, de Sá, Duma, Eisenwiener, Fani, Farkas, Fellner, Ferreira, Geraldes, Geraldes, Geraldes, Glasoe, Gyula Tircsó, Harris, Imre Tóth, Irving, João P. André, Kabachnik, Kaden, Kubíček, Kálmán, Levin, Liu, Lukes, Maria I.M. Prata, Marques, Marques, Mathews, Moore, Notni, Prata, Prata, Prata, Rösch, Shetty, Vallabhajosa, Waddas, Zoltán Kovács, Zékány, Šimeček   +54 more
core   +1 more source

Modelling and optimization of surfactant sensor response characteristics for the use in surface water and wastewater analysis

Zaštita Materijala, 2014
The theoretical model of potentiometric titration curves of sodium dodecyl sulfate (anionic surfactant) was proposed and the response parameters of two surfactant sensors (commercial and self-made) were investigated.
Stanisavljev Ana Komanović, Grujić Aleksandra Perić, Bosnar Milan Sak   +2 more
doaj   +1 more source