Article
Engineering, Electrical & Electronic
Ji-Eun Joo, Myung-Jae Lee, Sung Min Park
Summary: This article presents an optoelectronic receiver IC with on-chip avalanche photodiode (APD) for indoor-monitoring light detection and ranging (LiDAR) sensors. The integrated CMOS p+/n-well APD avoids signal distortion and unwanted effects. Various circuit techniques, such as DFD-TIA, ASD converter, CI-PA, and TDA-NIC, are utilized to achieve high performance. The measurement results show that the proposed receiver provides a potential solution for low-cost and low-power short-range LiDAR sensors.
IEEE SENSORS JOURNAL
(2023)
Article
Biophysics
Bhuwan Kashyap, Ratnesh Kumar
Summary: This paper proposes a novel electro-chemical method, MS-DPV, to reduce random errors and improve the precision of electrochemical sensors. The method improves precision without the need for replicating measurements and is suitable for portable or in-field sensing solutions with constraints on sampling, time, and energy use.
BIOSENSORS & BIOELECTRONICS
(2022)
Article
Nanoscience & Nanotechnology
Xiaoliang Chen, Qian Zeng, Jinyou Shao, Sheng Li, Xiangming Li, Hongmiao Tian, Guifang Liu, Bangbang Nie, Yongsong Luo
Summary: The study demonstrated a highly sensitive and fully flexible vibration sensor with a channel-crack-designed suspended sensing membrane. It can be widely applied in human-machine interaction, voice identification, and mechanical equipment vibration monitoring.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Electrochemistry
Shawn Chia-Hung Lee, Peter J. Burke
Summary: This article introduces an open source, fully wireless potentiostat called NanoStat, which is applicable to various fields such as electrochemistry, sensing, biomedical diagnostics, and nanotechnology. It is a versatile platform capable of conducting modern electrochemistry assays with a user interface connected through a web browser. The entire code is hosted by NanoStat itself. The potential applications of this technology range from biomedical sensing in clinics to remote monitoring in public spaces.
ELECTROCHIMICA ACTA
(2022)
Article
Engineering, Electrical & Electronic
Serdar Toprak, Revna Acar Vural, Okan Zafer Batur
Summary: This article presents a potentiostat circuit with high linearity and accuracy bidirectional current readout circuit for a wide dynamic current range. The potentiostat circuit achieves a minimum detectable current of 1 nA within current range of +/- 400 mu A. The proposed circuit is capable of providing low noise and high accuracy current measurement with low power consumption and highly linear output characteristics.
AEU-INTERNATIONAL JOURNAL OF ELECTRONICS AND COMMUNICATIONS
(2021)
Article
Chemistry, Multidisciplinary
Gyuri Choi, Kyeongsik Nam, Mookyoung Yoo, Sanggyun Kang, Byeongkwan Jin, Kyounghwan Kim, Hyeoktae Son, Hyoungho Ko
Summary: This paper presents a low-noise potentiostat readout circuit with a chopper fully differential difference amplifier (FDDA) for glucose monitoring. The circuit utilizes the chopping technique to achieve a low-noise characteristic and reduce low-frequency noises. It is designed with a low-noise chopper FDDA and has a low power consumption and wide dynamic output range.
APPLIED SCIENCES-BASEL
(2022)
Article
Engineering, Electrical & Electronic
Amirhosein Asilian, S. Mohammadali Zanjani
Summary: This article presents a sensor design method that utilizes gold and tin oxide electrodes and a gas concentration detection circuit. The sensor demonstrates improved sensitivity with an n-type semiconductor and a sol-gel coating with SnO2. The sensor includes 20 finger electrodes on a ceramic substrate, along with a heater for interaction with the external environment. The amperometric method and ultra-low noise amplifier are used to detect gas concentration. The experimental results show a sensitivity of 6nA/ppm within the range of 0 - 470 ppm, with a detection limit of 1 ppm. The proposed circuit offers linear response, resistance to thermal changes, and cost-effectiveness. The sensor exhibits reliable repeatability, with a response time of 27.5 s and a recovery time of 39 s. The adjustable bandwidth and gain of the front-end circuit enable precise fine-tuning of the measured CO concentration range.
AEU-INTERNATIONAL JOURNAL OF ELECTRONICS AND COMMUNICATIONS
(2023)
Proceedings Paper
Computer Science, Information Systems
Jiazhen Zhu, Bartas Abaravicus, Amlan Nag, Srinjoy Mitra
Summary: The paper introduces an amperometric sensor that is immune to variations in double layer capacitor size and does not require additional calibration. By using dynamic current mirrors, the sensor's resolution is increased to over 9 bits. Through extensive simulations, the linearity, DNL, and noise floor of the sensor are all within acceptable limits.
2021 IEEE ASIA PACIFIC CONFERENCE ON CIRCUITS AND SYSTEMS (APCCAS 2021) & 2021 IEEE CONFERENCE ON POSTGRADUATE RESEARCH IN MICROELECTRONICS AND ELECTRONICS (PRIMEASIA 2021)
(2021)
Article
Engineering, Electrical & Electronic
Xiaoxiao Zheng, Mao Ye, Qiuwei Wang, Yao Li, Yiqiang Zhao
Summary: This paper presents an eight-channel analog front-end with wide bandwidth and low noise for FMCW LiDAR application. The proposed AFE utilizes techniques such as fully differential shunt feedback transimpedance amplifier, adaptive dc current cancellation, and cascaded differential amplifier to improve signal-to-noise ratio, gain, and bandwidth. Experimental results validate the performance of the AFE.
MICROELECTRONICS JOURNAL
(2023)
Article
Engineering, Electrical & Electronic
Yifei Fan, Pablo Morales Navarrete, Jie Yuan
Summary: This article presents a high dynamic range microfluidic protein sensing platform that reduces sample volume, expedites reactions, and controls sample processing automatically. The platform includes a high-performance potentiostat circuit and an eight-channel PDMS microfluidic device for automatic sample processing.
IEEE SENSORS JOURNAL
(2023)
Article
Engineering, Electrical & Electronic
Marcello De Matteis, Nicolas Galante, Federico Fary, Elia Vallicelli, Andrea Baschirotto
Summary: The presented filter addresses the limitations of traditional SF filters by using a fully-differential circuit topology, operating in a 28nm CMOS process. The prototype consists of two biquadratic cells cascaded together, with a 90 MHz -3 dB bandwidth and consuming 816uW of power, achieving a dynamic range of 64 dB.
IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS
(2021)
Article
Biophysics
Anran Zheng, Wei Zhang, Chao Li, Zhen Guo, Chuanyu Li, Changsong Zhang, Jia Yao, Zhiqi Zhang, Jinze Li, Shasha Zhao, Lianqun Zhou
Summary: A novel HLDT method was developed using a GR-C sensor to quantitatively evaluate heparin potency in whole blood. The method demonstrated high selectivity for heparin potency in 10 μL of whole blood with a detection limit of 0.1 U/mL.
BIOSENSORS & BIOELECTRONICS
(2022)
Article
Engineering, Electrical & Electronic
A. Lopez, F. J. Ferrero, M. Valledor, J. C. Campo, J. Reviejo, J. M. Pingarron
Summary: This article introduces an automated CFA system based on amperometric biosensors. The system possesses characteristics of fast response time, practicality, and low-cost equipment, and is suitable for real-time monitoring and automation. The study successfully designs and develops all parts of the system, and validates the prototype using an amperometric biosensor to analyze the ethanol content of low-alcohol beers.
IEEE SENSORS JOURNAL
(2022)
Article
Environmental Sciences
Liangmei Rao, Yifu Zhu, Zhongshu Duan, Ting Xue, Xuemin Duan, Yangping Wen, Annamalai Senthil Kumar, Weiming Zhang, Jingkun Xu, Akbar Hojjati-Najafabadi
Summary: This study proposes a green approach to utilize biomass waste for carbon materials and successfully develops a portable, flexible, and low-cost sensing platform.
Article
Engineering, Biomedical
Hamed Osouli Tabrizi, Omid Farhanieh, Qiao Owen, Sebastian Magierowski, Ebrahim Ghafar-Zadeh
Summary: This paper presents a new fully integrated CMOS capacitance sensor chip with a wider input dynamic range, high-resolution measurement capability, and fast measurement speed.
IEEE TRANSACTIONS ON BIOMEDICAL CIRCUITS AND SYSTEMS
(2021)
