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"IEEE Sensors Alert" is a new service of the IEEE Sensors Council. Started as one of its new initiatives, this weekly digest publishes teasers and condensed versions of our journal papers in layperson's language.
Articles Posted in the Month (May 2025)
Split Gate Bulk-Planar Junctionless FET-Based Biosensor for Label-Free Detection of Biomolecules
Author: Deepika Singh, Ganesh C. Patil, Bikash Dev Choudhury
Published in: IEEE Sensors Journal (Volume: 24, Issue: 18, September 2024)
Summary Contributed by: Saurabh Dubey
The split-gate Bulk-planar junctionless field-effect transistors (SG-BPJLFET) biosensor offers cost-effective, high sensitivity, and precise detection of biomolecules through drain current changes. Its innovative design enhances selectivity and sensitivity by leveraging a split-gate structure and junctionless architecture, ensuring effective biomolecule interaction and charge modulation. The device exhibits fast response and high performance due to the reduced leakage current and scalable fabrication. It holds the potential for medical diagnostics and advanced biosensing.
Double-Beam Cantilever Probe for Crack Probability Analysis of Multilayer Substrates During Wafer Probing
Author: Tremmel Florian, Holmer Rainer, Kutter Christoph, Nagler Oliver
Published in: IEEE Sensors Journal (Volume: 24, Issue: 24, December 2024)
Summary Contributed by: Tremmel Florian (Author)
Semiconductor devices undergo mechanical stress during functionality checks in the wafer prober, which may cause hidden cracks. This paper introduces an innovative double-beam cantilever probe to evaluate these cracks in multilayer substrate during wafer probing. This sensor solution regulates the load limits of the chips and detects crack sounds faster in real-time, ensures safer and more reliable chip testing, and offers a promising solution for wafer probing processes in semiconductor manufacturing.
Subblescope: Novel Thin-Film Haptic Sensing Using a Single-Bubble Approach
Author: Debadutta Subudhi, Prasanna K. Routray, Manivannan Muniyandi
Published in: IEEE Sensors Journal (Volume: 24, Issue: 18, September 2024)
Summary Contributed by: Anupama
The Subblescope is a novel vision-based haptic sensor that uses a single air bubble embedded in a flexible elastomer to detect and measure forces. By capturing and analyzing the deformation of the bubble, the sensor can perform precise measurements of force and torque, enabling accurate tactile sensing. This simple yet effective design has potential applications in robotics, virtual reality, and human-computer interaction.
Acoustofluidic Particle Trapping in a Structured Microchannel Using Lateral Transducer Modes
Author: Fuchsluger Andreas, Andrianov Nikolai, Cselyuszka Norbert, De Pastina Annalisa, Ecker Rafael, Jakoby Bernhard, Mitteramskogler Tina, Voglhuber-Brunnmaier Thomas
Published in: IEEE Sensors Journal (Volume: 24, Issue: 24, December 2024)
Summary Contributed by: Fuchsluger Andreas (Author)
Acoustofluidics uses sound waves for contactless manipulation of particles and fluids within microfluidic systems, which is relevant for various medical applications. This study presents a novel lateral-mode acoustofluidic trapping device using a disc-shaped resonator to create a two-dimensional standing wave for efficient particle trapping. The device operates at lower frequencies and efficiently traps large sizes and volumes of particles, demonstrating high predictability, reproducibility, and stability, making it suitable for advanced particle manipulation.
Ultrahigh Sensitivity Surface Plasmon Resonance Magnetic Field Sensor Based on D-Shape Four-Hole Fiber
Author: Chen Zhenshi, Chen Cheng, Chu Paul K., Fu Haihao
Published in: IEEE Sensors Journal (Volume: 24, Issue: 24, December 2024)
Summary Contributed by: Payal Savani
Magnetic field sensors are essential in modern technology, with applications ranging from smart gadgets, biomedicine, industrial automation, and environmental monitoring to aerospace technology. This paper presents a highly sensitive sensor using surface plasmon resonance (SPR) and a D-shaped four-hole fiber designed for accurate magnetic field detection. Integrating SPR with fiber optics enhances the devices' sensitivity and performance, advancing its potential applications in areas where detecting weak magnetic signals is crucial.
Antibody-Free SERS Detection of Severe Fever With Thrombocytopenia Syndrome Virus Using Micron Bowl Array PDMS Substrates
Author: Hsu Wei-li, Wang Gou-jen, Lin Ying-Ting, Lin Ze-Cheng, Tseng Ching-Yu
Published in: IEEE Sensors Journal (Volume: 25, Issue: 4, February 2025)
Summary Contributed by: Hsu Wei-li (Author)
Severe fever with thrombocytopenia syndrome (SFTS) is a newly identified zoonotic infectious disease discovered in several East Asian countries. It is caused by the SFTS virus (SFTSV), also known as Dabie bandavirus or Huaiyangshan virus. The paper presents a novel surface-enhanced Raman scattering (SERS) chip with silver nanoparticles (AgNPs) uniformly deposited on a micron bowl array polydimethylsiloxane (PDMS) substrate to detect the virus responsible for SFTS effectively.
Scorpion-Inspired, Hydrophobic, Highly Sensitive, and Paper-Based Magnetoelastic Biosensor for C-Reactive Protein Detection
Author: Sang Shengbo, Ge Yang, Guo Xing, Yuan Zhongyun, Zhao Dong, Luo Man
Published in: IEEE Sensors Journal (Volume: 24, Issue: 8, April 2024)
Summary Contributed by: Saurabh Dubey
C-reactive protein (CRP) in human blood is a vital biomarker for detecting inflammation or acute infection. This study presents a hydrophobic, paper-based magnetoelastic biosensor inspired by scorpion anatomy and made using eco-friendly materials and V-shaped grooves to enhance sensitivity for detecting CRP. The sensor overcomes the limitations of traditional detection methods and offers rapid, cost-effective, and highly sensitive diagnostics for acute inflammation and tissue damage.
Improving the Spatial Resolution of Small Satellites by Implementing a Super-Resolution Algorithm Based on the Optical Imaging Sensor’s Rotation Approach
Published in: IEEE Sensors Journal (Volume: 24, Issue: 24, December 2024)
Summary Contributed by: Iman Kazemi (Author)
Image processing can improve the image quality of data transmitted by small satellites. This paper presents a novel method of enhancing small satellite image resolution using a super-resolution algorithm combined with a rotating sensor. The algorithm reconstructs a high-resolution image by boosting spatial resolution. This method increases image clarity by gathering more data in flight and vertical directions and efficiently processing images in approximately 0.713 seconds, making it suitable for microsatellite applications.
Rule the Joule: An Energy Management Design Guide for Self-Powered Sensors
Author: Monagle Daniel, Ponce Eric Andrew, Leeb Steven
Published in: IEEE Sensors Journal (Volume: 24, Issue: 01, January 2024)
Summary Contributed by: Saurabh Dubey
Rule the Joule Energy Management System for self-powered sensors features dynamic control, cold-start capability, and robust maximum power point tracking (MPPT) to optimize energy harvesting and storage. Its real-time energy flow regulation reduces reliance on predictive models, enhancing efficiency in noisy environments. Experimental validation confirms its reliability for powering wireless sensor nodes, providing overvoltage protection and improved component longevity, paving the way for advancement in IoT, smart technologies, and wireless sensor networks.
Microfluidic Electrochemical Sensor for Online Detection of Chemical Oxygen Demand Based on AuNPs/Au Electrodes
Author: Yang Xiaozhan, Wu Haotian, Xie Song
Published in: IEEE Sensors Journal (Volume: 24, Issue: 23, December 2024)
Summary Contributed by: Xiaozhan Yang (Author)
Chemical oxygen demand (COD) is a key parameter for water quality assessment. The paper presents a compact, microfluidic electrochemical sensor for real-time monitoring of COD in water. The sensor uses gold nanoparticles (AuNPs) on modified gold electrodes to enhance sensitivity and accuracy. It does real-time COD monitoring with high efficiency and quick response, i.e., 3 minutes. Successful tests on water samples highlight its potential for water quality monitoring and environmental management.
Triaxial 3-D-Channeled Soft Optical Sensor for Tactile Robots
Author: Matteo Lo Preti, Federico Bernabei, Anderson B. Nardin, Lucia Beccai
Published in: IEEE Sensors Journal (Volume: 24, Issue: 17, September 2024)
Summary Contributed by: Payal Savani
Robotic systems integrated with sensors show enhanced performance in challenging environments and tasks. The proposed novel triaxial 3D-channeled soft fingertip-shaped optical sensor designed for tactile robots uses transparent channels to detect forces in three dimensions. The compact and flexible sensors made from soft materials with optical waveguides enhance the robot's sensitivity to touch. It offers flexibility and accuracy for real-time tactile feedback, showing potential for real-time force detection in robotic hands.
Published in: IEEE Sensors Journal (Volume: 24, Issue: 24, December 2024)
Summary Contributed by: Toshihiko Noda (Author)
Accurate plant monitoring is vital for smart agriculture. Traditional pH sensors struggle with light interference and require dark conditions for accurate pH measurement. This study introduces a novel pH image sensor mitigating light interference. Employing dual-pixel technology, it distinguishes between pH and light signals, enabling precise measurements under illumination. Results show errors within 10%, a significant improvement over existing methods. This advancement facilitates real-time multi-ion sensing for optimized crop management.
Noninvasive Blood Glucose Measurement Using RF Spectroscopy and a LightGBM AI Model
Author: Dominic Klyve, Steve Lowe, Kaptain Currie, James H. Anderson, Carl Ward, Barry Shelton
Published in: IEEE Sensors Journal (Volume: 24, Issue: 17, September 2024)
Summary Contributed by: Saurabh Dubey
Blood glucose monitoring is crucial in diabetes patients. This paper combines radiofrequency (RF) spectroscopy with a LightGBM AI model to explore a non-invasive method for measuring blood glucose levels. RF signals detect the change in blood glucose concentration in the skin, which is processed through the AI model to estimate blood glucose levels accurately. The approach aims to provide a non-invasive, safe, and convenient way for regular glucose monitoring in diabetic care.
Published in: IEEE Sensors Journal (Volume: 24, Issue: 23, December 2024)
Summary Contributed by: Brent Leier (Author)
The limitations of conventional temperature sensors in extremely cold environments pose significant challenges across various industries. This paper introduces a microwave sensor utilizing a stripline transmission for low-temperature sensing. The sensor exploits the temperature-sensitive properties of dielectric materials, enabling precise detection of frequency shifts correlated with temperature variations. The innovatively designed sensor is feasible for low and sub-zero temperature measurement owing to its linear sensitivity and stable, repeatable measurements.
Author: N. Bhavana, Mallikarjun M. Kodabagi, B. Muthu Kumar, P. Ajay; N. Muthukumaran, A. Ahilan
Published in: IEEE Sensors Journal (Volume: 24, Issue: 15, August 2024)
Summary Contributed by: Anupama
Road potholes pose significant risks to road safety and infrastructure. POT-YOLO is a novel real-time detection system combining edge segmentation with the You Look Only Once (YOLOv8) architecture. This innovative approach improves pothole localization by accurately identifying their contours. POT-YOLO demonstrates exceptional performance, ensuring accurate and efficient detection even in challenging conditions. Its real-time capabilities allow for deployment on edge devices, facilitating proactive maintenance and improving road safety.
Sensors have become a part of everyday life, seamlessly connecting the physical and electronic worlds. The paper focuses on the current-output sensing technique, providing information and analytical study of various sensors and design guidance of current readout circuits. Additionally, state-of-the-art current-sensing frontends are analyzed concerning gain, bandwidth, stability, and noise. The paper presents insights into general design architectures and their performance tradeoffs.
Knee injuries and other minor or chronic knee conditions are prevalent. Monitoring rehabilitation or medication progress in knee treatment is time-consuming, expensive, and requires regular imaging, follow-ups, and several tests. However, knee health can be monitored and “joint health score” calculated remotely with wearable sensors that pick up sound, swelling, temperature and motion. Packaging these sensors into a wearable brace is vital for monitoring the knee.
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