Results 61 to 70 of about 29,788 (277)

Carbon Shell‐Encapsulated PtFe Catalysts in High Temperature Polymer Electrolyte Membrane Fuel Cells: Balancing Molecular Sieving and Diffusion for Enhanced Reactant Access

Advanced Functional Materials, EarlyView.
Scanning electrochemical microscopy reveals reactant diffusion through porous carbon shells to PtFe cores, while the carbon‐encapsulated PtFe enables high‐performance HT‐PEMFC operation by sieving phosphate ions that induce catalyst poisoning. ABSTRACT High‐temperature polymer electrolyte membrane fuel cells (HT‐PEMFCs) operating at 160°C on phosphoric
Myeong‐Geun Kim, Sourabh S. Chougule, Suji Lee, Young Sang Park, Jihyun Choi, Katie Heeyum Lim, Albert S. Lee, Hyun S. Park, Namgee Jung, Sung Jong Yoo   +9 more
wiley   +1 more source

Electrocatalytic determination of captopril using NiO nanoparticle/acetylferrocene modified electrode in biological and pharmaceutical samples [PDF]

شیمی کاربردی روز, 2016
The electrocatalytic oxidation of captopril (CAP) has been studied by acetylferrocene (AF) modified NiO/NPs carbon paste electrode (AF/NiO/NPs/CPE). Cyclic voltammetry (CV), square wave voltammetry (SWV) and chronoamperometry were used to investigate the
وحید عربعلی
doaj   +1 more source

Development of an electrochemical maltose biosensor [PDF]

, 2012
In this work, electrochemical maltose biosensors based on mutants of the maltose binding protein (MBP) are developed. A ruthenium II complex (Ru II ), which is covalently attached to MBP, serves as an electrochemical reporter of MBP conformational ...
García García, Alfonso, Morón Fernández, Carlos, Somolinos Sánchez, José Andrés, Tremps Guerra, Enrique   +3 more
core   +1 more source

Electrochemical sensors modified with combinations of sulfur containing phthalocyanines and capped gold nanoparticles: A study of the influence of the nature of the interaction between sensing materials [PDF]

, 2019
Producción CientíficaVoltametric sensors formed by the combination of a sulfur-substituted zinc phthalocyanine (ZnPcRS) and gold nanoparticles capped with tetraoctylammonium bromide (AuNPtOcBr) have been developed.
García Cabezón, Ana Cristina, García Hernández, Celia, Martín Pedrosa, Fernando, Ortiz, Javier, Rodríguez Méndez, María Luz, Rodríguez Pérez, Miguel Ángel, Ruiz Carmuega, Ana Isabel, Sastre Santos, Ángela   +7 more
core   +1 more source

Understanding the Effects of Conductive Polymer Electrode Coating on Recorded Neural Signals

Advanced Healthcare Materials, EarlyView.
Conductive polymer coatings are widely explored to improve the quality of signals recorded with chronically implanted neural electrodes, offering enhanced biocompatibility along with reduced electrode impedance. Combining computational modelling and data from PEDOT:PTS coated and PtIr electrodes in rats, we show that improvements in signal quality with
Karthik Sridhar, Judith Evers, Alexandre Trotier, Manus Biggs, Madeleine M. Lowery   +4 more
wiley   +1 more source

Nanostructured Base Electrochemical Sensor for Determination of Sulfite

International Journal of Electrochemical Science, 2014
A novel carbon paste electrode modified with carbon nanotube and benzoylferrocene (BF) was fabricated. The electrochemical study of the modified electrode, as well as its efficiency for electrocatalytic oxidation of sulfite is described.
Hadi Mahmoudi Moghaddam, Mohammad Malakootian, Hadis Beitollah, Pourya Biparva   +3 more
doaj   +1 more source

Synthesis and (spectro)electrochemistry of mixedvalent diferrocenyl–dihydrothiopyran derivatives [PDF]

, 2015
Three novel diferrocenyl complexes were prepared and characterised. 2,2-Diferrocenyl-4,5-dimethyl- 3,6-dihydro-2H-thiopyran (1, sulphide) was accessible by the hetero-Diels–Alder reaction of diferrocenyl thioketone with 2,3-dimethyl-1,3-butadiene ...
Aguirre-Etcheverry, Alexander Hildebrandt, Allen, Barlow, Barrière, Barrière, Becke, Bruno Therrien, Ceccon, Costuas, D'Alessandro, Delgado-Pena, Denifl, Diallo, Diallo, Dominique Miesel, Dong, Dong, Drabowicz, Duggan, Enders, Farrugia, Ferguson, Filipczyk, Fourie, Geiger, Geiger, Gericke, Glover, Gray, Gritzner, Grzegorz Mlostoń, Heinrich Lang, Hildebrandt, Hildebrandt, Hildebrandt, Hildebrandt, Hildebrandt, Hush, Inamoto, Jones, Kaleta, Kaleta, Kienz, Konrad Kowalski, Kotz, Kowalski, Kowalski, Krejcik, Lapinte, Larsen, Lee, Lehrich, Linseis, Lohan, Lohan, Miesel, Mücke, Nafady, Nemykin, Nemykin, O'Connor Salazar, Paul, Petrov, Petrov, Pfaff, Pfaff, Pfaff, Pfaff, Pichlmaier, Poppitz, Rafał Czerwieniec, Rafał Karpowicz, Ratner, Ribou, Robin, Rulkens, Sheldrick, Snyder, Speck, Speck, Swarts, Ward, Weeb, Winter, Xie, Xie, Yamaguchi   +87 more
core   +3 more sources

Optoelectrical Devices for Neural Interfacing: Engineering Integration, Stability, and Multimodal Sensing

Advanced Healthcare Materials, EarlyView.
Implantable optoelectrical devices are an effective resource for the modulation and monitoring of neural activity with high spatiotemporal resolution. This review discusses current challenges faced by these devices and outlines future perspectives for the development of next‐generation neural interfaces targeting chronic, multisite, and multimodal ...
Stella Aslanoglou, Barbara Spagnolo, Antonio Balena, Massimo De Vittorio, Ferruccio Pisanello   +4 more
wiley   +1 more source

Utilização da múltipla voltametria de onda quadrada na determinação eletroanalítica de compostos orgânicos e inorgânicos Use of the multiple square wave voltammetry in the electroanalytical determination of organic and inorganic compounds

Química Nova, 2007
This paper reports the development of multiple square wave voltammetry and the possibilities of its use for electroanalytical determinations of organic and inorganic compounds with the improvement of the signal-to-noise ratios and detection limits 2-3 ...
Djenaine De Souza, Andressa Galli, Marcelo L. Calegaro, Sergio A. S. Machado, Roberto C. Pires   +4 more
doaj   +1 more source

The Redox Couple of the Cytochrome \u3cem\u3ec\u3c/em\u3e Cyanide Complex: The Contribution of Heme Iron Ligation to the Structural Stability, Chemical Reactivity, and Physiological Behavior of Horse Cytochrome \u3cem\u3ec\u3c/em\u3e [PDF]

, 2006
Contrary to most heme proteins, ferrous cytochrome c does not bind ligands such as cyanide and CO. In order to quantify this observation, the redox potential of the ferric/ferrous cytochrome c–cyanide redox couple was determined for the first time by ...
Blizzard, Erica R., Feinberg, Benjamin A., Margoliash, Emanuel, Ryan, Michael D., Schejter, Abel, Zhang, Chongyao   +5 more
core   +1 more source