This talk is a narration of my journey over the last few years in developing diverse sensor applications, balancing the often conflicting constraints imposed by cost of the solution and delivering on performance. The first part of the talk will focus on some biosensor strategies that we are currently developing. In particular, I shall describe a novel low-cost optical sensing colorimetry platform for early-warning cardiac biomarkers, and recent work on low-cost PCB electrode based biosensors for SARS-CoV-2 nucleotide detection in waste water samples and immunosensors for SARS-CoV-2 spike protein sensing in artificial saliva samples. The second part of the talk will focus on sensor solutions for structural health monitoring that we are currently developing, covering a vast range of applications including pulse Eddy current system for corrosion monitoring in reinforced concrete structures, in-situ monitoring of cathodic protection systems used for corrosion inhibition, and ultrasonic guided wave inspection systems for non-destructive testing of structures. We will review the technical breakthroughs that enable us to tackle these applications with low-cost solutions.
Siddharth Tallur is an Assistant Professor in the Department of Electrical Engineering since 2016. Prior to joining IIT Bombay, he was working as MEMS product and applications engineer at Analog Devices Inc. Wilmington MA, USA (2013-16). He obtained his M.S.-Ph.D. degree in Electrical and Computer Engineering at Cornell University (2013), and B.Tech. in Electrical Engineering at IIT Bombay (2008). His research interests include development of low cost, precision sensor systems with applications in bio sensing, structural health monitoring and condition monitoring.