Results 251 to 260 of about 10,194 (274)
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Dissymmetric Carbon Nanotubes by Bipolar Electrochemistry
Nano Letters, 2008Short carbon nanotubes have been modified selectively on one end with metal using a bulk technique based on bipolar electrochemistry. A stabilized suspension of nanotubes is introduced in a capillary containing an aqueous metal salt solution, and a high electric field is applied to orientate and polarize the individual tubes.
Chompunuch, Warakulwit +8 more
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Hydrogel electrodeposition based on bipolar electrochemistry
Lab on a Chip, 2018Electrodeposition of the hydrogel on the bipolar electrode in the absence of a direct ohmic contact, and cell culture in the hydrogel.
Kosuke Ino +5 more
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Extracting Kinetic Information from Bipolar Electrochemistry
ECS Meeting Abstracts, 2018Bipolar electrodes (BPEs) hold enormous promise for rapid screening of electrocatalysts owing to their ability to be operated wirelessly – without direct ohmic contact to a power source – and in parallel. A BPE is a conductor, immersed in an ionically conducting phase, that facilitates coupled oxidation and reduction reactions at opposing ends when ...
Robbyn K. Anand +4 more
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Coupling electrochemistry with a fluorescence reporting reaction enabled by bipolar electrochemistry
Journal of Electroanalytical Chemistry, 2020Abstract A bipolar electrochemistry setup for the sensitive indirect detection of redox active analytes by means of a fluorescence signal generated by the oxidation of dihydroresorufin is proposed. The redox conversion leads to the in situ and real time formation of the oxidized form resorufin, a highly fluorescent molecule. A photomultiplier tube is
Jéssica S. Stefano +4 more
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The use of bipolar electrochemistry in nanoscience
2021Bipolar electrochemistry occurs when an isolated conductive substrate inside an electric field supports both oxidation and reduction reactions. The method requires no direct contact between the power supply and the substrate. In the following thesis bipolar electrochemistry has been used to deposit palladium onto isolated graphite platelets, carbon ...
Patrick Gathura Ndungu +1 more
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Bipolar Electrochemistry for Functionalization of 2D Materials
ECS Meeting Abstracts, 2023After the isolation of graphene monolayer graphene 2D materials have garnered great attention for their theoretically predicted exceptional properties. Covalent functionalization strategies are used to further finetune and improve these properties, which allow to integrate these materials into a wide range of applications.
Anastasiia Bazylevska +2 more
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Parallel Screening of Electrocatalyst Candidates Using Bipolar Electrochemistry
Analytical Chemistry, 2013Here we report simultaneous screening of bimetallic electrocatalyst candidates for the oxygen reduction reaction (ORR) using bipolar electrochemistry. The analysis is carried out by dispensing different bimetallic precursor compositions onto the cathodic poles of an array of bipolar electrodes (BPEs) and then heating them in a reducing atmosphere to ...
Stephen E, Fosdick +3 more
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Capillary‐assisted bipolar electrochemistry: A focused mini review
ELECTROPHORESIS, 2017AbstractA bipolar electrode is quite unconventional as it behaves simultaneously as an anode and a cathode in contrast to a classic electrochemical setup where the electron transfer reactions are promoted on two different electrodes. The driving force is the polarization potential established between the solution and the bipolar electrode, that allows ...
Laurent, Bouffier +2 more
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Bipolar electrochemistry for cargo-lifting in fluid channels
Lab on a Chip, 2012We report for the first time the vertical propulsion of conducting beads in liquid filled capillaries by bipolar electrochemistry. The beads, when exposed to an external electric field, act as bipolar electrodes showing hydroquinone oxidation on one side and proton reduction on the other side.
Loget, Gabriel, Kuhn, Alexander
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Display of Solid-State Materials Using Bipolar Electrochemistry
Langmuir, 2010We report the formation and characterization of one-dimensional chemical composition gradients of CdS on Au surfaces using bipolar electrodeposition. When an external electric field is applied across an electrically floating Au electrode immersed in a bipolar electrochemical cell, a position-dependent interfacial potential difference is generated along
Sridevi, Ramakrishnan, Curtis, Shannon
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