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Full-Text Articles in Engineering
Fabrication Challenges And Perspectives On The Use Of Carbon-Electrode Dielectrophoresis In Sample Preparation, Rodrigo Martinez-Duarte
Fabrication Challenges And Perspectives On The Use Of Carbon-Electrode Dielectrophoresis In Sample Preparation, Rodrigo Martinez-Duarte
Publications
The focus of this review is to assess the current status of three-dimensional (3D) carbon-electrode dielectrophoresis (carbonDEP) and identify the challenges currently preventing it from its use in high-throughput applications such as sample preparation for diagnostics. The use of 3D electrodes over more traditional planar ones is emphasised here as a way to increase the throughput of DEP devices. Glass-like carbon electrodes are derived through the carbonisation of photoresist structures made using photolithography. These biocompatible carbon electrodes are not ideal electrical conductors but are more electrochemically stable than noble metals such as gold and platinum. They are also significantly less …
Electrochemical Capacitance Measurements To Study Molecular Surface Interactions, Nrutya Madduri
Electrochemical Capacitance Measurements To Study Molecular Surface Interactions, Nrutya Madduri
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The behavior of biological molecules such as proteins at the electrode/electrolyte has been of considerable interest for the development of biosensors. Several investigative techniques including Potentiometry, Voltammetry, Amperometry, and Electrochemical Impedance Spectroscopy are being employed to study and analyze these molecular surface interactions. Investigative techniques such as cyclic voltammetry involve the application of a large potential to probe the electrode characteristics and capture the bulk membranous events to obtain the required measurements. This study looks to achieve two major objectives through the use of a novel technique, namely, the double layer capacitive method: 1) to analyze the electrochemical behavior of …