SOFTWARE DESIGN OF DUAL CHANNEL POTENTIOSTAT SYSTEM FOR READING SCREEN PRINTED ELECTRODE ION SENSORS NA+ AND K+ IN BIOSENSOR RESEARCH

• Main Author: Hanif Adityo, Muhammad
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/73632
• Institution: Institut Teknologi Bandung

The research group of the National Research and Innovation Agency (BRIN) in collaboration with Bandung Institute of Technology (ITB) and FK UHAMKA conducted research on ion sensors in the form of Screen Printed Electrode (SPE). This research is based on the needs of the FK UHAMKA research team to measure electrolytes in daily urine and study their relationship to the physiological conditions of the body. The focus of this research is on the correlation between sodium (Na+ ) and potassium (K+ ) ions as the primary ions in the intracellular fluid. To see the correlation, it is necessary to measure the two ions simultaneously. However, the instruments currently available on the market can only read a single ion sensor (single target) so that research is hampered. Therefore, an instrument is needed that is capable of simultaneously reading Na+ and K+ sensor ions. The dual-channel potentiostat is a solution for solving problems for observing the correlation of Na+ and K+ ions. The main systems of dual-channel potentiostats include potentiostat systems and laptop devices. With a system architecture consisting of four subsystems including signal acquisition, I/O & control, signal processing, and user interface. The signal acquisition and user I/O & control subsystems are located in the potentiostat system. Meanwhile, the signal processing and user interface subsystems are on the laptop device system. The result of potentiostat system implementation is a potentiostat system in the form of hardware and a desktop application in the form of software. The implementation of the signal processing subsystem and the user interface is carried out in the form of software in the form of a desktop application capable of receiving input parameters from the user, serial communication with the potentiostat system, storing measurement data, and displaying measurement data to the user in the form of numerical values of ion concentrations and current-voltage graph for CV (Cyclic Voltammetry) & DPV (Differential Pulse Voltammetry) measurement methods.