Article
Chemistry, Analytical
Chang-Lin Hu, I-Cheng Cheng, Chih-Hsien Huang, Yu-Te Liao, Wei-Chieh Lin, Kun-Ju Tsai, Chih-Hsien Chi, Chang-Wen Chen, Chia-Hsi Wu, I-Te Lin, Chien-Ju Li, Chii-Wann Lin
Summary: The study proposed textile electrodes integrated with a clothing belt to address issues such as evaporation of conductive gel and deterioration of signal quality during long-term EIT usage. Experimental results validated the effectiveness of the portable EIT system, and performance comparison with commercial electrocardiogram electrodes was conducted.
Article
Computer Science, Information Systems
Matias Rusanen, Sami Myllymaa, Laura Kalevo, Katja Myllymaa, Juha Toyras, Timo Leppanen, Samu Kainulainen
Summary: In this study, the FocusBand textile electrodes were compared with medical-grade wet electrodes to investigate the differences in skin-electrode interface behavior and EEG signals' quality. The textile electrodes showed higher skin-electrode impedance initially, but this difference decreased over time, producing consistent EEG signals at forehead Fp1 and Fp2 locations. While the FocusBand device can be used to record forehead biopotential signals, the quality is not as consistent as with the medical-grade system.
Article
Energy & Fuels
Samayanan Selvam, Jin-Heong Yim
Summary: This article describes a biocompatible and electrolyte inscribed textile-based supercapacitor for wearable smart devices. The flexible supercapacitor is made from Chitosan/MnO2@MnCO3 chelate decorated fabrics, and the active materials are produced through a hydrothermal method with the assistance of BMIMBF4 ionic liquid. The supercapacitor exhibits a notable areal capacitance of 2.5 Fcm(-2) and an energy density of 0.35 Wh cm(-2), and it maintains a decent capacity retention of around 90-89% after 10,000 charge-discharge cycles with good mechanical flexibility.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Chemistry, Analytical
Vignesh Ravichandran, Izabela Ciesielska-Wrobel, Md Abdullah al Rumonl, Dhaval Solanki, Kunal Mankodiya
Summary: This study focuses on the impedance characteristics of dry e-textile electrodes and a laser-cut knit electrode under various contact forces and moisture conditions. The results showed that certain electrodes exhibited a significant decrease in impedance after moisture exposure, indicating the impact of stitch design and moisture. However, after controlled drying, some electrodes experienced an increase in impedance. Overall, the knit electrode and embroidered electrodes demonstrated superior performance in terms of impedance, moisture retention, and ECG signal quality.
Article
Chemistry, Physical
Yuan Gao, Chuan Xie, Zijian Zheng
Summary: The increasing demand for portable and wearable electronics has led to a growing interest in flexible lithium-ion batteries and supercapacitors. Textile composite electrodes have shown great promise for flexible, high-capacity, and long-cycle-life textile-based electrochemical energy storage devices, compared to traditional metal-foil-supported electrodes. Challenges associated with textile composite electrodes and textile-based electrochemical energy storage devices are discussed, along with potential solutions.
ADVANCED ENERGY MATERIALS
(2021)
Article
Chemistry, Analytical
Katya Arquilla, Laura Devendorf, Andrea K. Webb, Allison P. Anderson
Summary: Wearable physiological monitoring systems are increasingly important in autonomous health monitoring and human-computer interaction. We propose woven textile electrodes integrated into garments as an option for capturing complete ECG waveforms.
Article
Biophysics
Ana Arche-Nunez, Peter Krebsbach, Bara Levit, Daniel Possti, Aaron Gerston, Thorsten Knoll, Thomas Velten, Chen Bar-Haim, Shani Oz, Shira Klorfeld-Auslender, Gerardo Hernandez-Sosa, Anat Mirelman, Yael Hanein
Summary: This study analyzed the noise characteristics of dry electrodes and investigated the impact of physiological activity on the link between impedance and noise. The results showed that baseline noise values from dry electrodes on the arm were consistent with the Nyquist equation, while the measured noise values on the face were higher than predicted. The study also examined the effects of different electrode properties on performance.
PHYSIOLOGICAL MEASUREMENT
(2023)
Review
Materials Science, Textiles
S. M. Musfequr Rahman, Henna Mattila, Marika Janka, Johanna Virkki
Summary: This paper evaluated the impedance of textile electrodes for electroencephalography measurements. The study found that copper-based textile electrodes were more suitable than silver-based textile electrodes and comparable to commercial electrodes in terms of impedance.
TEXTILE RESEARCH JOURNAL
(2023)
Article
Chemistry, Physical
Ismael Domingos, Zakaria Saadi, Kavya Sreeja Sadanandan, Henrique A. Pocinho, Diogo M. Caetano, Ana I. S. Neves, Monica F. Craciun, Helena Alves
Summary: In this work, a highly efficient flexible triboelectric textile was developed using printed graphene electrodes with polydimethylsiloxane (PDMS) as the triboelectric pair. The textile electrode surpassed non-planarized devices in all three printing techniques, with a 4-fold improvement in power density. By increasing the contact area of the triboelectric textile, the power output reached an effective power of 60 & mu;W. This flexible TENG presents stable output performance and can be used as a wearable sensor to monitor biomechanical movements.
Article
Engineering, Electrical & Electronic
Yizhou Jiang, Lili Liu, Lin Chen, Yuanyuan Zhang, Zishang He, Wei Zhang, Jun Zhao, Danzhu Lu, Jie He, Hongda Zhu, Ye Gong, Li-Rong Zheng, Yuanyuan Wang, Zhuo Li, Yajie Qin
Summary: Flexible and stretchable dry active electrodes based on Ag flakes/PDMS ECC were developed for multi bio-potentials sensing. Various experiments were conducted to verify the stability and high-quality signal transmission of the proposed electrodes and sensing system. Compared to traditional Ag/AgCl wet passive electrodes, the proposed dry active electrodes showed similar noise floor, lower sensitivity, and more stable signal transmission capability.
IEEE SENSORS JOURNAL
(2021)
Article
Materials Science, Multidisciplinary
Bradley S. Napier, Giusy Matzeu, Marco Lo Presti, Fiorenzo G. Omenetto
Summary: Thread or fiber-based sensors integrated into wearable textiles can provide re-engineered electrochemical sensing units for real-time exercise or training analytics. The use of rGO fibers as electrode materials can overcome limitations of current textile-based sensors, enabling high-performance sweat sensing units.
ADVANCED MATERIALS TECHNOLOGIES
(2022)
Review
Materials Science, Textiles
Emanuel Gunnarsson, Fernando Seoane
Summary: The rise of interest in wearable sensing of bioelectrical signals has led to investigations on developing and evaluating such systems. An easy-to-use and reliable three-lead in vivo method is presented as a more accurate alternative to the common two-lead method for measuring skin-electrode impedance.
TEXTILE RESEARCH JOURNAL
(2023)
Article
Nanoscience & Nanotechnology
Chen Ding, Jiayi Wang, Wei Yuan, Xiaojin Zhou, Yong Lin, Guoqing Zhu, Jie Li, Tao Zhong, Wenming Su, Zheng Cui
Summary: The paper introduces a thermal transfer printing method for fabric electrodes, which overcomes the challenges of manufacturing high-performance fabric electrodes while maintaining the original characteristics of textiles. The fabric electrodes prepared by this method exhibit high conductivity, high adhesion, good abrasion/washing resistance, high patterning resolution, and good electromechanical performance.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Engineering, Electrical & Electronic
Riccardo Raho, Elisa Scarpa, Antonio Nunzio D'Angelo, Denis Desmaele, Federica Raheli, Antonio Qualtieri, Francesco Rizzi, Massimo De Vittorio
Summary: This paper reports on the fabrication and characterization of a novel reusable Flexible Dry Electrode (FDE) for medical applications. The FDEs were made using two flexible substrates and conductive layers, and their performance was tested and compared to commercial gel electrodes. The results showed that the FDEs had comparable performance in bioelectrical impedance analysis (BIA) measurements and demonstrated promising long-term reliability for wearable and portable devices.
SENSORS AND ACTUATORS A-PHYSICAL
(2022)
Review
Materials Science, Multidisciplinary
Liangtao Yang, Qing Liu, Zhilin Zhang, Lu Gan, Yi Zhang, Jinglong Wu
Summary: Electroencephalography (EEG) is widely used in brain cognition, clinical diagnosis, and artificial intelligence, but the traditional Ag/AgCl electrode requires complex pre-preparation. Therefore, the development of dry electrodes is urgently needed to simplify the testing process and improve subject comfort.
ADVANCED MATERIALS TECHNOLOGIES
(2022)
Article
Engineering, Electrical & Electronic
Marco Zappatore, Giulia Cerfeda, Caternina Merla, Luciano Tarricone
IEEE MICROWAVE MAGAZINE
(2021)
Article
Engineering, Electrical & Electronic
Giuseppina Monti, Gloria Rosaria De Giovanni, Marco De Liso, Matteo Pascali, Luciano Tarricone
IEEE MICROWAVE MAGAZINE
(2021)
Article
Multidisciplinary Sciences
Ben Minnaert, Giuseppina Monti, Mauro Mongiardo
Summary: In this study, the application of Pauli matrices in cylindrical and spherical coordinates is reported for the first time. The use of Pauli algebra for representing three-dimensional vectors is discussed, along with the derivation and discussion of the Pauli matrix representations of the nabla operator in different coordinate systems.
Article
Chemistry, Analytical
Erika Pittella, Raissa Schiavoni, Giuseppina Monti, Antonio Masciullo, Marco Scarpetta, Andrea Cataldo, Emanuele Piuzzi
Summary: This study proposes two different and integrated sensors for structural health monitoring of concrete beams, one for diffuse monitoring throughout the whole beam length, and the other for punctual monitoring and localization of cracks.
Article
Chemistry, Analytical
Giuseppina Monti, Federica Raheli, Andrea Recupero, Luciano Tarricone
Summary: This study investigates the use of wristband electrodes for hand-to-hand bioimpedance measurements. The electrodes proposed are made of a stretchable conductive knitted fabric. Different implementations have been developed and compared with commercial Ag/AgCl electrodes. Hand-to-hand measurements at 50 kHz on forty healthy subjects were carried out, and the Passing-Bablok regression method was used to compare the proposed textile electrodes with commercial ones. It was demonstrated that the proposed designs ensure reliable measurements and easy and comfortable use, making them an excellent solution for the development of a wearable bioimpedance measurement system.
Article
Chemistry, Analytical
Giuseppina Monti, Luciano Tarricone
Summary: This paper investigates an inductive wireless link for motion recognition and analyzes three different materials. The results demonstrate that the proposed textile inductive resonant wireless links are well suited for developing a compact wearable system.
Article
Engineering, Electrical & Electronic
Nizar Brahim, Giuseppina Monti, Luciano Tarricone, Hichem Taghouti
Summary: This letter presents a wearable inductive resonant wireless link for joint flexion monitoring. It is demonstrated that the position of the elbow can be recognized from measurements of the transmission coefficient of the resonant inductive wireless link. The implementation proposed in this work is suitable for the development of a monitoring system that can be easily integrated into garments thus resulting unobtrusive to the user.
IEEE SENSORS LETTERS
(2023)
Proceedings Paper
Biophysics
Nizar Brahim, Giuseppina Monti, Luciano Tarricone
Summary: This paper experimentally investigates the use of a wireless resonant energy link for joint flexion monitoring. Configurations using two and four coils are analyzed through a compact and very low-cost setup suitable for the implementation of a wearable monitoring system.
2022 IEEE MTT-S INTERNATIONAL MICROWAVE BIOMEDICAL CONFERENCE (IMBIOC)
(2022)
Proceedings Paper
Biophysics
Alfredo De Cillis, Luciano Tarricone, Marco Zappatore
Summary: This paper introduces the use of machine learning and artificial neural networks for predicting and optimizing electroporation treatments, and extends the approach to gesture recognition.
2022 IEEE MTT-S INTERNATIONAL MICROWAVE BIOMEDICAL CONFERENCE (IMBIOC)
(2022)
Proceedings Paper
Biophysics
Giuseppina Monti, Emanuele Paiano, Federica Raheli, Luciano Tarricone
Summary: This paper presents and discusses novel textile electrodes for bioimpedance measurements, which are fully-textile and suitable to be embedded into a shirt.
2022 IEEE MTT-S INTERNATIONAL MICROWAVE BIOMEDICAL CONFERENCE (IMBIOC)
(2022)
Article
Engineering, Electrical & Electronic
Andrea Cataldo, Egidio De Benedetto, Raissa Schiavoni, Giuseppina Monti, Annarita Tedesco, Antonio Masciullo, Emanuele Piuzzi, Luciano Tarricone
Summary: This article introduces an innovative wearable device that monitors skin hydration through microwave reflectometry technique. The device has good wearability and surface adherence to the skin. The potential of the system is validated through numerical analysis and experimental tests.
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
(2022)
Proceedings Paper
Engineering, Electrical & Electronic
Raissa Schiavoni, Giuseppina Monti, Annarita Tedesco, Luciano Tarricone, Emanuele Piuzzi, Egidio de Benedetto, Antonio Masciullo, Andrea Cataldo
Summary: This paper discusses the implementation of an innovative wearable device for monitoring skin hydration through microwave reflectometry technique. The study involved experimental validation and full-wave simulations on human phantoms to establish the relationship between skin dielectric permittivity and the monitoring system's frequency response. The results suggest that the system has the potential for real-time, continuous monitoring of skin hydration.
2021 IEEE INTERNATIONAL INSTRUMENTATION AND MEASUREMENT TECHNOLOGY CONFERENCE (I2MTC 2021)
(2021)
Proceedings Paper
Engineering, Electrical & Electronic
Giuseppina Monti, Raissa Schiavoni, Egidio De Benedetto, Andrea Cataldo, Luciano Tarricone
Summary: This research introduces a low-cost setup for skin sensing, utilizing a single port compact sensor in direct contact with the skin and a nano vector network analyzer. The study demonstrates that properties of the skin, such as hydration level, can be correlated to the reflection coefficient of the sensor.
2021 IEEE MTT-S INTERNATIONAL MICROWAVE AND RF CONFERENCE (IMARC)
(2021)
