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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 ...
Luca Berdondini +6 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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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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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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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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Piezoelectric Fiber Composites with Interdigitated Electrodes
Journal of Intelligent Material Systems and Structures, 1997Piezoelectric Fiber Composites were previously introduced as an alternative to monolithic piezoceramic wafers for structural actuation applications. This manuscript was an investigation into the improvement of piezoelectric fiber composite performance through a nonconventional electroding scheme.
Aaron A. Bent, Nesbitt W. Hagood
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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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Fabrication of Interdigital Electrodes for Monolithic Biosensing
2021Interdigital electrodes/contacts (IDCs) based sensors are widely used in a variety of chemical and biological sensors, which presents promising advantages such as high sensitivity, low electron mobility, enhanced gate conductivity and increased signal to noise ratio.
Nireekshan Kumar Sodavaram +1 more
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3D interdigitated electrode array in the microchannel free of reference and counter electrodes
Biosensors and Bioelectronics, 2018We demonstrate the three-dimensional (3D) interdigitated array (IDA) chip that operates without reference and counter electrodes, which are necessary components to apply enough potential to trigger the intended redox process, but used unwieldy for chip-based electrochemical detection.
Dahye, Lee +5 more
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A CMOS Lock-In-based Read-out for Interdigitated Electrodes
2020 IEEE International Instrumentation and Measurement Technology Conference (I2MTC), 2020An analog lock-in amplifier (LIA) designed to be used in portable sensing applications for high-resolution voltage/current detection is presented. Fully differential circuits for signal amplification and embedded high pass filtering were used in order to increase noise rejection reaching a CMRR at 100 kHz of 109 and 149 dB and low input-referred noise <
Paulina Mariana Maya-Hernández +4 more
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