Material Development for Interdigitated Sensors for Trace Contaminants
Disciplines
Other Materials Science and Engineering
Abstract (300 words maximum)
With advancements in the technology used for fields of medicine and other disciplines, the need for sensitive measuring devices is crucial for these technologies to work. An interdigitated sensor is a device that can fit on a finger. These devices are used to detect contaminants based on the capacitive nature of the interdigitated electrodes. This project focuses on development of electrode for measuring molarity of acid in a diluted aqueous solution, then determine the response signals generated by the sensor. The preliminary results show that the developed sensor is capable to generate signals at very low molarity values such as 0.001 molar of potassium chloride (KCl). Results from electrochemical testing of sensors generated between frequency range of 1KHz – 1mHz will be discussed. Changes in the impedance as a function of molarity of solution will be analyzed. Our project utilize the results from experiments to gain an understanding of material coatings role in sensitivity of sensor detection, as well as to determine the role of electrode placement distance in sensor overall detecting capabilities.
Academic department under which the project should be listed
SPCEET - Robotics and Mechatronics Engineering
Primary Investigator (PI) Name
Ashish Aphale
Material Development for Interdigitated Sensors for Trace Contaminants
With advancements in the technology used for fields of medicine and other disciplines, the need for sensitive measuring devices is crucial for these technologies to work. An interdigitated sensor is a device that can fit on a finger. These devices are used to detect contaminants based on the capacitive nature of the interdigitated electrodes. This project focuses on development of electrode for measuring molarity of acid in a diluted aqueous solution, then determine the response signals generated by the sensor. The preliminary results show that the developed sensor is capable to generate signals at very low molarity values such as 0.001 molar of potassium chloride (KCl). Results from electrochemical testing of sensors generated between frequency range of 1KHz – 1mHz will be discussed. Changes in the impedance as a function of molarity of solution will be analyzed. Our project utilize the results from experiments to gain an understanding of material coatings role in sensitivity of sensor detection, as well as to determine the role of electrode placement distance in sensor overall detecting capabilities.