Results 181 to 190 of about 6,729 (231)
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On the impedance response of interdigitated electrodes
Electrochimica Acta, 2019Abstract Finite-element impedance simulations were used to provide a relationship between the characteristic dimension and the physical dimensions of the interdigitated electrodes. Inclusion of electric and displacement currents allowed simulation of the capacitive loop associated with the geometric capacitance. An error analysis was used to quantify
Mark E Orazem, Arthur Dizon
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Fabrication of nano-interdigitated electrodes
SPIE Proceedings, 2003Thin-film Pt nano interdigitated electrodes realized by combining e-beam lithography and standard photolithography are presented. The resulting nano-IDAs have an active area of 76 μm × 100 μm, an electrode pitch of 785 nm and a gap of 250 nm. The initial results show that this technology is well adapted for the realization of sub-micrometer metallic ...
Berdondini, L. +6 more
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Cyclic Biamperometry at Micro-Interdigitated Electrodes
Analytical Chemistry, 2011Cyclic biamperometry was studied as an analytical method for use with commercially available, comb-type, coplanar microinterdigitated electrodes (μIDEs), using the ferri-/ferrocyanide redox couple as a model analyte. The μIDEs studied in this work were made of gold that had been deposited onto a Ti/W adhesion layer on borosilicate glass chips and had 5
Mehdi, Rahimi, Susan R, Mikkelsen
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Submicron Electrode Gaps Fabricated by Gold Electrodeposition at Interdigitated Electrodes
Key Engineering Materials, 2014Electrodes with submicron gaps are desired for achieving high amplication redoxcycling sensors. In this contribution we report the use of electrodeposition of gold in order todecrease the inter-electrode spacing at interdigitated electrodes. Using this method submicronspacings can be obtained without expensive techniques such as e-beam lithography or ...
van Megen, M.J.J. +2 more
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Interdigitated electrode biosensor for DNA sequences detection
2015 27th International Conference on Microelectronics (ICM), 2015In this work, we present the design of a biosensor for specific DNA sequences detection. Bioimpedance spectroscopy (BIS) is used to characterize DNA hybridization. This theoretical study allows to optimize the geometric parameters of the biosensors by reducing the cell factor (Kcell), where the CoventorWare software was used to modelize the biosensors ...
Ayoub Bourjilat +3 more
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3D nanogap interdigitated electrode array biosensors
Analytical and Bioanalytical Chemistry, 2010Three-dimensional interdigitated electrodes (IDEs) have been investigated as sensing elements for biosensors. Electric field and current density were simulated in the vicinity of these electrodes as a function of the electrode width, gap, and height to determine the optimum geometry. Both the height and the gap between the electrodes were found to have
Kanwar Vikas, Singh +5 more
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Electrothermal pumping with interdigitated electrodes and resistive heaters
ELECTROPHORESIS, 2015Interdigitated electrodes are used in electrokinetic lab‐on‐a‐chip devices for dielectrophoretic trapping and characterization of suspended particles, as well as the production of field‐induced fluid flow via AC electroosomosis and electrothermal mechanisms.
Williams, Stuart J., Green, Nicolas
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A capacitive biosensor based on an interdigitated electrode with nanoislands
Analytica Chimica Acta, 2014A capacitive biosensor based on an interdigitated electrode (IDE) with nanoislands was developed for label-free detection of antigen-antibody interactions. To enable sensitive capacitive detection of protein adsorption, the nanoislands were fabricated between finger electrodes of the IDE.
Ha-Wook, Jung +5 more
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Characterization of Interdigital Electrode Sensors
Surface Engineering and Applied Electrochemistry, 2019The paper aims to determine the influence of the chosen geometrical parameters of an interdigital sensor and of the measuring cell on the sensor performance, with the final goal of optimizing those parameters. The cell here is a capacitive cell or resistive cell for titration without a particular type.
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A New Interdigital Electrode Transducer Geometry
IEEE Transactions on Microwave Theory and Techniques, 1974A new interdigital electrode transducer geometry has been conceived and its theoretical performance verified experimentally. The transducer is composed of sets of electrodes which are connected in series through an offset or "dog-leg" electrode, thereby significantly increasing the electrical impedance of the transducer over that of a conventional one ...
K.M. Lakin, D.W.T. Mih, R.M. Tarr
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