FABRIC-BASED ELECTROCHEMICAL-BASED FLEXIBLE/WEARABLE SENSOR FABRICATION USING ELECTRODES AND DIELECTRIC MATERIALS FROM BATIK WAX WITH ELECTRODE PATTERNS ON VINYL PAPER FROM CUTTING MACHINES

• Main Author: Yulianti Suhayat, Putri
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/73937
• Institution: Institut Teknologi Bandung

Developments of diagnostic have prompted us to explore the potential of diagnostic tools that can keep up with human activities. Diagnosis must be fast, precise, and can be done anywhere, and by anyone. The development of biosensors that lead to flexible/wearable sensors is a solution because flexible/wearable sensors do not require a lot of analytes, can be done anywhere, and by anyone. This study used fabric-based materials, using a three-electrode system, Working Electrode, Counter Electrode, and Reference Electrode. The Working Electrode and Counter Electrode are formed from carbon paste while the Reference Electrode is formed from Ag/AgCl paste. In addition to the electrodes, these devices also use wax which forms the reaction zone. The performance of the biosensor was evaluated by measuring cyclic voltammetry (CV), differential pulse voltammetry (DPV), and chronoamperometry (CA) in PBS and potassium ferricyanide solutions as electroactive analytes. Electrode penetration during fabrication needs to be considered, because if the electrode does not absorb the cloth properly, if it only sticks to the surface, the resistance of the electrode will be greater than the electrode which absorbs well on the fabric, if the electrode has a high resistance it will reduce stability and potentiostat speed and will give unfavorable electrochemical measurements.