Doctoral Research
Advisors: Prof. Yogesh Gianchandani, Dr. Scott Green
Thesis Title: System level challenges in microfabricated magnetoelastic transducers in implantable biomedical applications
• Invented a novel magnetoelastic sensor for monitoring occlusion in biliary stents (patent in progress)
• Designed/modeled and simulated the sensor in COMSOL and fabricated at class 100 Lurie Nanofabrication Lab (LNF)
• Invented a novel hybrid package for protecting the sensor (patent in progress), modeled in SolidWorks and 3D-printed
• Developed a test module using waveform generators, amplifiers, DAQ, etc. (NI) for magnetoelastic sensor interrogation
• Improved interrogation performance by optimizing commercial hardware and custom electronics via LabVIEW automation
• Programmed various digital signal processing techniques in LabVIEW to enhance wireless range and signal to noise ratio
• Achieved the first-time detection of magnetic signals from a magnetoelastic sensor implanted in a live animal bile duct
• Developed a test module using a hydrophone, audio amplifier and function generator for acoustic signal detection
• Achieved the first-time detection of acoustic signals from a magnetoelastic transducer implanted in eye-tissue
Graduate Projects (University of Michigan)
1. μ-Piezoelectric Energy Harvester with Frequency Up-Conversion for Cardiac Pacemakers (Jan 2017 - Apr 2017)
• Led a team in the design of a novel piezoelectric energy harvester consisting of low frequency and high-frequency resonators for mechanical upconversion for improving the lifetime of cardiac pacemakers
• Modeled and simulated the microresonators in COMSOL and optimized the design parameters for maximum efficiency
2. Low-Cost Lactate Sensor for Real-Time Sweat Monitoring (Aug 2016 - Dec 2016)
• Managed a team in the design of a novel microsystem for non-invasive lactate monitoring from sweat
• Designed, modeled and simulated a magnetoelastic sensor for lactate sensing in COMSOL
• Assisted in designing the disposable patch for sweat collection and sensor packaging
3. Electro-Thermally Actuated Microgripper with Two-Dimensional Movement (Jan 2016 - Apr 2016)
• Led a team in the design of a novel electro-thermal gripper which can move in 2D for microparticle gripping
• Designed, modeled and simulated the MEMS component in COMSOL and assisted in the fabrication at the LNF
• Characterized the microgrippers using a probe station and the experiments concurred with the simulation results
• Designed circuits for the gripper including a 3-stage OPAMP, ring oscillator, and comparator in Cadence
4. Implantable Continuous Glucose Monitoring System (ICGMS) (Jan 2016 - Apr 2016)
• Managed a team in the design of a novel implantable glucose monitoring system based on surface acoustic waves (SAW)
• Designed, modeled and simulated the SAW sensor in COMSOL
5. A Fully Differential Three-Stage NMCFNR Amplifier in Cadence (Aug 2015 - Dec 2015)
• Contributed to the team in the design of a Nested Miller Compensated Feedforward amplifier with nulling Resistance
• Designed a fully differential PMOS CS stage in the second stage of the NMCFNR including fabrication layout in Cadence