A5020730324- Analog and Mixed-Signal Circuit Design
- Biosensors and Analytical Detection
- Radio Frequency Integrated Circuit Design
- Energy Harvesting in Wireless Networks
- Gut microbiota and health
- Advanced Power Amplifier Design
- Advanced Chemical Sensor Technologies
- Low-power high-performance VLSI design
- Millimeter-Wave Propagation and Modeling
- Advanced biosensing and bioanalysis techniques
- Advancements in Semiconductor Devices and Circuit Design
- Sensor Technology and Measurement Systems
- bioluminescence and chemiluminescence research
- 3D Printing in Biomedical Research
- Viral gastroenteritis research and epidemiology
- CRISPR and Genetic Engineering
- Single-cell and spatial transcriptomics
- Advanced MIMO Systems Optimization
- CCD and CMOS Imaging Sensors
Boston University
2022-2023
Institute of Electrical and Electronics Engineers
2020
ABSTRACT Transient molecules in the gastrointestinal (GI) tract, such as nitric oxide and hydrogen sulfide, are key signals mediators of inflammatory bowel disease (IBD). Because these extremely short-lived body, they difficult to detect. To track reactive GI we have developed a miniaturized device that integrates genetically-engineered probiotic biosensors with custom-designed photodetector readout chip. Leveraging molecular specificity living sensors, genetically encoded bacteria respond...
This article presents a highly miniaturized ingestible electronic capsule for biochemical detection via onboard genetically engineered biosensor bacteria. The core integrated circuit (IC) is threshold-based bioluminescence detector with CMOS-integrated photodiode array in 65-nm technology that utilizes dual-duty-cycling front end to achieve low power consumption. implemented IC achieved 59-nW active consumption, 25-fA/count resolution, and 59-fA minimum detectable signal (MDS) using...
Multiple-input multiple-output (MIMO) systems utilize multiple antennas and signal acquisition chains, facilitating multi-user communications with increased spectral efficiency better coverage via beamforming. MIMO are typically costly to implement consume high power. A commonly used method reduce the cost of receivers is design hybrid analog/digital beamforming (HBF), which reduces number RF chains. However, added analog circuitry involves active components whose consumed power may surpass...
Multiple-input multiple-output (MIMO) systems exploit spatial diversity to facilitate multi-user communications with high spectral efficiency by beamforming. As MIMO utilize multiple antennas and radio frequency (RF) chains, they are typically costly implement consume power. A common method reduce the cost of receivers is utilizing less RF chains than employing hybrid analog/digital beamforming (HBF). However, added analog circuitry involves active components whose consumed power may surpass...
Summary form only given. Continuous and minimally-invasive monitoring of inflammation in the gastrointestinal (GI) tract can be achieved via ingestible bioengineered sensors tailored to each disease, such as Crohn's disease. High-resolution biomolecular sensing could indicate onset acute disease episodes allow for early intervention better management. Our work aims detect important but labile biomarkers GI that quickly degrade digestive system. For example, bleeding upper cannot easily...
This paper presents a speed-enhanced asynchronous SAR control logic, based on two-phase handshake architecture. The logic comprises of cells. Each cell employs static gate and an SRAM-latch. interaction between them, architecture, supports high-speed output change. is implemented in 6b V <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">cm</sub> -based successive approximation register (SAR) analog-to-digital converter (ADC) with 1b redundancy 90...
MIMO communication systems deliver higher data capacity and wide-area coverage. However, they traditionally apply brute-force acquisition with spatial signal processing using high-resolution ADCs costly analog pre-processing circuits, leading to high power consumption hardware complexity. This work presents the first integrated task-specific receiver (TSMRx) beamforming low-bit achieving blocker rejection implemented in 65nm CMOS technology, leveraging recently proposed digital techniques...
Analog-to-digital converters (ADCs) facilitate the conversion of analog signals into a digital format. While specific designs and settings ADCs can vary depending on their applications, it is crucial in many modern applications to minimize power consumption. The significance low-power particularly evident fields like mobile handheld devices reliant battery operation. Key parameters that dictate ADC's are its sampling rate, dynamic range, number quantization bits. Typically, these required be...