A5078366641- Electrochemical Analysis and Applications
- Electrochemical sensors and biosensors
- Analytical Chemistry and Sensors
- Conducting polymers and applications
- Nanopore and Nanochannel Transport Studies
- Advanced biosensing and bioanalysis techniques
- Microfluidic and Capillary Electrophoresis Applications
- Molecular Junctions and Nanostructures
- Gas Sensing Nanomaterials and Sensors
- Metal-Organic Frameworks: Synthesis and Applications
- Electrocatalysts for Energy Conversion
- Fuel Cells and Related Materials
- Catalytic Processes in Materials Science
- Microwave-Assisted Synthesis and Applications
- Advanced Chemical Sensor Technologies
- Advanced Cellulose Research Studies
- Advanced Nanomaterials in Catalysis
- Force Microscopy Techniques and Applications
- Metal Extraction and Bioleaching
- Microfluidic and Bio-sensing Technologies
- Gyrotron and Vacuum Electronics Research
- Corrosion Behavior and Inhibition
- Biosensors and Analytical Detection
- Supercapacitor Materials and Fabrication
- Layered Double Hydroxides Synthesis and Applications
Delft University of Technology
2013-2018
Erasmus University Rotterdam
2018
Interface (United States)
2016
University of Twente
2011-2014
University of Bath
2009-2012
University of Eastern Finland
2007-2011
Finland University
2011
University of Oxford
2009
Abstract Metal–organic frameworks (MOFs) are porous crystalline materials consisting of metal ions bound through coordination bonds to organic linkers. Much research over the last few decades have been devoted synthesis these in view their promising applications in, for example, catalysis, separation, gas storage, drug delivery and sensing. Among variety methods developed MOFs electrochemical techniques. These several advantages such as mild conditions, shorter times possibility control...
ADVERTISEMENT RETURN TO ISSUEPREVFeatureNEXTLithography-Based NanoelectrochemistryLithographically fabricated nanostructures appear in an increasingly wide range of scientific fields, and electroanalytical chemistry is no exception. This article introduces lithography methods provides overview the new capabilities electrochemical phenomena that can emerge nanostructures.Liza Rassaei, Pradyumna S. Singh, Serge G. LemayView Author Information University TwenteCite this: Anal. Chem. 2011, 83,...
The sensing of enzymatic processes in volumes at or below the scale single cells is challenging but highly desirable study biochemical processes. Here we demonstrate a nanofluidic device that combines an recognition element and electrochemical signal transduction within six-femtoliter volume. Our approach based on localized immobilization enzyme tyrosinase microfabricated nanogap transducer. reaction product quinone confined space nanochannel which efficient redox cycling also takes place....
Abstract Compared to bulk gold, highly reactive mesoporous gold film deposits are prepared on a boron‐doped diamond electrode surface. An electroaggregation process causing 5 nm diameter nanoparticles deposit cathodically from aqueous solution is implemented control the amount of at The resulting surface characterized by electron microscopy and cyclic voltammetry.
Post Synthetic Modification (PSM) of amino-metal organic frameworks (NH<sub>2</sub>-MOFs) with the enzyme Glucose Oxidase (GOx) is reported.
The generation of stable enhanced light emission by electrochemiluminescence in microfabricated nanofluidic electrochemical devices is demonstrated for the first time exploiting nanogap amplification.
A novel glucose sensing concept based on the localized change or "modulation" in pH within a symmetric gold−gold junction electrode is proposed. paired (average gap size ca. 500 nm) prepared by simultaneous bipotentiostatic electrodeposition of gold onto two closely spaced platinum disk electrodes. For detection neutral aqueous solution, potential "pH-modulator" set to −1.5 V vs saturated calomel reference (SCE) locally increase pH, and simultaneously, either cyclic voltammetry square wave...
We study the influence of convective mass transport on faradaic currents detected under redox cycling conditions at nanogap electrodes embedded in a microchannel. show that, unlike case microelectrodes, limiting current nanofluidic device is not influenced by sample flow rate microfluidic channel. This due to both hydraulic resistance nanochannel suppressing within and inherently diffusion-based between microelectrodes separated 70 nm gap. These devices thus allow electrochemical...
The interest in analytical devices, which typically rely on the reactivity of a biological component for specificity, is growing rapidly. In this Perspective, we highlight current challenges all-electrical biosensing as these systems shrink toward nanoscale and enable detection analytes at single-molecule level. We focus two sensing principles: nanopores amperometric microelectrode devices.
Highly rigid polymers of intrinsic microporosity (PIM) offer novel high temperature template materials for the formation nano-structured metal oxides, here nanostructured Pr<sub>6</sub>O<sub>11</sub>.
Porous carbon nanohybrids are promising materials as high-performance electrodes for both sensing and energy conversion applications. This is mainly due to their high specific surface area physicochemical properties. Here, new porous nanohybrid developed based on exfoliated MoS2 nanopetals either negatively charged phenylsulfonated nanoparticles or positively sulfonamide functionalized nanoparticles. not only act a scaffold form 3D hierarchical architectures but also result in well-separated...
The surface functionalities of commercial sulfonate-modified carbon nanoparticles (ca. 9-18 nm diameter, Emperor 2000) have been converted from negatively charged to positively via sulfonylchloride formation followed by reaction with amines give suphonamides. With ethylenediamine, the resulting exhibit water solubility (in absence added electrolyte), a positive zeta-potential, and ability assemble into insoluble porous films layer-by-layer deposition employing alternating negative...
Thin films of ZIF-8 on ZnO nanorods were synthesized by casting a thin linker film followed heating for less than an hour.
Abstract Carbon nanofibers provide an active and well‐defined high surface area material for electroanalytical processes. In this study a novel procedure is suggested compacting carbon nanofiber (CNF) materials (diameter typically 100–200 nm) with polystyrene (PS) binder additives into highly conducting re‐polishable CNF‐PS composite electrodes. Three types of (Pyrograf III, 70–200 nm diameter) range compositions are surveyed. A 33 wt% in electrode provides optimum electrical conductivity reactivity.
Abstract The front cover artwork is provided by the Organic Materials & Interfaces and Catalysis Engineering Groups at Delft University of Technology (The Netherlands). image shows electrosynthesis a metal–organic framework (MOF) when using anodic dissolution. metal ions, released through electrode oxidation, combine with linker to form final frameworks. Read full text Article 10.1002/celc.201402429 .
Abstract A novel way to produce ultrathin transparent carbon layers on tin‐doped indium oxide (ITO) substrates is developed. The ITO surface coated with cellulose nanofibrils (from sisal) via layer‐by‐layer electrostatic binding poly(diallyldimethylammonium chloride) or PDDAC acting as the binder. nanofibril‐PDDAC composite film then vacuum‐carbonised at 500 °C. resulting films are characterised by atomic force microscopy (AFM), small angle X‐ray scattering (SAXS), wide‐angle (WAXS), and...