Template-directed porous electrodes in electroanalysis

Walcarius, Alain
January 2010
Analytical & Bioanalytical Chemistry;Jan2010, Vol. 396 Issue 1, p261
Academic Journal
Nano- and/or macrostructuring of electrode surfaces has recently emerged as a powerful method of improving the performances of electrochemical devices by enhancing both molecular accessibility and rapid mass transport via diffusion, by increasing the electroactive surface area in comparison to the geometric one, and/or by providing confinement platforms for hosting suitable reagents. This brief overview highlights how template technology offers advantages in terms of designing new types of porous electrodes—mostly based on thin films, and functionalized or not—and discusses their use in analytical chemistry via some recent examples from the literature on electrochemical sensors and biosensors. [Figure not available: see fulltext.]


Related Articles

  • Recent Updates of Chemically Modified Electrodes in Pharmaceutical Analysis. Radi, Abd-Elgawad // Combinatorial Chemistry & High Throughput Screening;Sep2010, Vol. 13 Issue 8, p728 

    No abstract available.

  • Towards paired and coupled electrode reactions for clean organic microreactor electrosyntheses. Paddon, Christopher; Atobe, Mahito; Fuchigami, Toshio; He, Ping; Watts, Paul; Haswell, Stephen; Pritchard, Gareth; Bull, Steven; Marken, Frank // Journal of Applied Electrochemistry;Jun2006, Vol. 36 Issue 6, p617 

    Electrosynthesis offers a powerful tool for the formation of anion and cation radical intermediates and for driving clean synthetic reactions without the need for additional chemical reagents. Recent advances in microfluidic reactor technologies triggered an opportunity for new microflow...

  • Electrochemical Activity of Methionine at Graphite Electrode Modified with Gold Nanoparticles. Perevezentseva, D. O.; Skirdin, K. V.; Gorchakov, E. V.; Bimatov, V. I. // Key Engineering Materials;2016, Vol. 685, p563 

    The "inverse" cathodic peak of gold nanoparticles is observed in the reaction mixture used to obtain gold nanoparticles HAuCl4:Na3C6H5O7:NaBH4=125:8:1 and accumulation time is 90 s. The conditions in which methionine has the greatest electrochemical activity were determined. They are as follows:...

  • A Portable Luminometer with a Disposable Electrochemiluminescent Biosensor for Lactate Determination. Martínez-Olmos, Antonio; Ballesta-Claver, Julio; Palma, Alberto J.; Valencia-Mirón, Maria del Carmen; Capitán-Vallvey, Luis Fermin // Sensors (14248220);2009, Vol. 9 Issue 10, p7694 

    A hand-held luminometer for measuring electrochemiluminescence (ECL) for lactate determination and based on one-shot biosensors fabricated using screen-printed electrodes is described. The lactate recognition system is based on lactate oxidase and the transduction system consists of...

  • Direct electrochemistry of chemically modified catalase immobilized on an oxidatively activated glassy carbon electrode. Hashemnia, Sedigheh; Ghourchian, Hedayatollah; Moosavi-Movahedi, Ali Aakbar; Faridnouri, Hassan // Journal of Applied Electrochemistry;Jan2009, Vol. 39 Issue 1, p7 

    Catalase (Ct) was modified using Woodward’s reagent K (WRK) as a specific modifier of carboxyl residues. The modified Ct was immobilized on an oxidatively activated glassy carbon electrode surface to investigate its direct electrochemistry. Using cyclic voltammetry an irreversible...

  • Electrochemical sensors based on ionophores: Current state, trends, and prospects. Mikhel'son, K. // Russian Journal of General Chemistry;Dec2008, Vol. 78 Issue 12, p2445 

    The review considers ionophore-based electrochemical sensors (ion-selective electrodes). In general the progress in the field is subdivided in two distinctly different trends: (1) an extensive development (enhancing of the list of ions whose concentration can be selectively measured with the...

  • Electrochemical biosensors based on nucleic acids and their use in bioaffinity assays for determining DNA and and its effectors. Babkina, S. S.; Budnikov, G. K. // Journal of Analytical Chemistry;Aug2006, Vol. 61 Issue 8, p728 

    The analytical capabilities of electrochemical biosensors based on nucleic acids are systematized. Immobilization methods that retain the biological activity of nucleic acids and provide an opportunity to use them as multipurpose analytical reagents are described. The use of the above sensors in...

  • INHIBITOR MULTIENZYME BIOSENSOR SYSTEM IN DYNAMIC MODE -- PHOSPHATE MEASUREMENT. RANGELOṼA, Ṽania; PANDELOṼA, Antonia; STOIYANOṼ, Nikolai // Annals of the Faculty of Engineering Hunedoara - International J;Jul2011, Vol. 9 Issue 2, p83 

    In this paper a multienzyme inhibitor system is investigated. A hybrid inhibitor biosensor for measuring concentration of phosphate is used. Enzymes kinetic of Michaelis-Menten and ping-pong kinetics are accepted. Partial differential equations of that complex system are solved numerically and...

  • The Need and Potential of Biosensors to Detect Dioxins and Dioxin-Like Polychlorinated Biphenyls along the Milk, Eggs and Meat Food Chain. Chobtang, Jeerasak; De Boer, Imke J. M.; Hoogenboom, Ron L. A. P.; Haasnoot, Willem; Kijlstra, Aize; Meerburg, Bastiaan G. // Sensors (14248220);2011, Vol. 11 Issue 12, p11692 

    Dioxins and dioxin-like polychlorinated biphenyls (DL-PCBs) are hazardous toxic, ubiquitous and persistent chemical compounds, which can enter the food chain and accumulate up to higher trophic levels. Their determination requires sophisticated methods, expensive facilities and instruments,...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics