Swarnim Sinha supervised by Dr. Azeemuddin Syed  received her Master of Science  in Electronics and Communication Engineering (ECE). Here’s a summary of her research work on Design and Characterization of Radio Frequency (Rf) Based Biosensors for Lab on Chip (Loc) Applications:

This thesis “DESIGN AND CHARACTERIZATION OF RADIO FREQUENCY (RF) BASED BIOSENSORS FOR LAB ON CHIP (LOC) APPLICATIONS” explores the design and development of advanced Radio Frequency (RF) biosensors for biochemical detection, leveraging the unique properties of Interdigitated Capacitors (IDCs) and Complementary Split-Ring Resonators (CSRRs). These RF biosensors are engineered to deliver label-free, non-invasive, and real-time sensing capabilities by detecting shifts in electromagnetic properties of the surrounding medium. 

IDCs are a crucial component of the sensor design, offering high sensitivity to changes in the dielectric properties of materials, making them ideal for detecting biochemical substances. CSRRs, on the other hand, enhance sensitivity and selectivity by utilizing their sharp resonance characteristics when exposed to variations in the medium. By integrating both components on a single chip, this work achieves a compact, cost-effective, and efficient biosensor design. 

The thesis presents the implementation of IDC-CSRR-based biosensors for detecting various biochemicals, focusing on their operation in the microwave frequency range. A novel single-chip design integrating IDC and CSRR demonstrates significant advancements in sensitivity, selectivity, and fabrication ease. Experimental evaluations highlight the performance and potential of these sensors in healthcare, environmental monitoring, and food safety applications. 

Published works stemming from this research include contributions to the 2023 International Conference on Sensing Technology (ICST) and Engineering Research Express, showcasing a lab on-chip (LoC) system for creatinine detection. These publications underline the relevance and innovation of this work in the field of biochemical sensing. 

This thesis significantly contributes to the development of high-performance RF biosensors, addressing challenges of sensitivity, compactness, and affordability. It establishes a foundation for future exploration and practical applications in various industries, offering a transformative approach to biochemical detection.

July 2025