Article
Engineering, Electrical & Electronic
R. Gunasekhar, A. Anand Prabu
Summary: The growing desire for a healthy and high-quality life, coupled with the rise of the Internet of Things, is driving innovation in wearable electronics. Triboelectric nanogenerators (TENGs) have emerged as advanced energy harvesting sensor technology for wearable electronics. TENGs are capable of monitoring vital signs and human body movements as they are sensitive to mechanical motion and driven by it. This study developed a highly sensitive, self-powered triboelectric pressure sensor using non-woven fabric made of thermoplastic polyurethane (TPU) and polyvinylidene fluoride (PVDF)/aromatic hyperbranched polyester (P-Ar.HBP-2) as the dielectric materials. The sensor efficiently converted physio-mechanical vibrations into electrical energy and generated a strong triboelectric output signal. The prototype sensors showed promise in monitoring the physical activity of coma patients, as well as patients with cardiovascular diseases and sleep apnea, in intelligent beds.
SENSORS AND ACTUATORS A-PHYSICAL
(2023)
Article
Chemistry, Physical
Shaobo Si, Chenchen Sun, Han Wang, Hongbing Wu, Lilin Chen, Yushu Xia, Jianchao Qin, Yufen Wu, Jin Yang
Summary: Non-invasive blood pressure assessment using wearable devices and intelligent algorithms has advanced healthcare significantly. However, existing methods impose strict constraints on human behavior, resulting in less accurate blood pressure assessments. To address this, a textile-based sensor with a multistage structure is proposed for unconstrained ambulatory blood pressure monitoring. The sensor accurately acquires ballistocardiogram (BCG) signals and uses them to assess blood pressure through a neural network model. The results meet accuracy standards for medical devices and show potential in home, hospital, and personalized medicine.
Article
Chemistry, Physical
Jingyao Sun, Kunhao Xiu, Ziying Wang, Ning Hu, Libin Zhao, Hao Zhu, Fanzhong Kong, Jianliang Xiao, Lijin Cheng, Xiaoyang Bi
Summary: Real-time monitoring of respiratory status during sleep is important for people with sleep apnea syndrome (SAS). A multifunctional wireless sensing platform based on biocompatible bacterial cellulose (BC) and graphene hybrids is reported, which can monitor physiological signals, respiration, and enable wireless communication. The system has potential applications in medical science and military fields.
Article
Biotechnology & Applied Microbiology
Xiaofeng Jin, Lin Zha, Fan Wang, Yongzhong Wang, Xueji Zhang
Summary: Respiration monitoring is a promising alternative to medical diagnosis, but current techniques have limitations due to expensive and cumbersome devices. This study presents a fully integrated wearable device consisting of a flexible LCP-copper interdigital electrode, a sensing layer, and a wireless electrochemical analysis system. The developed humidity sensor shows high sensitivity and rapid response/recover time, with long-term stability under different humidity levels. By integrating with a miniaturized electrochemical analysis system, the response current related to respiration can be wirelessly transmitted to a smartphone for real-time monitoring, and it can also monitor skin moisture in a touchless way.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2022)
Article
Engineering, Environmental
Gwon Neung Jang, Soo Yeong Hong, Heun Park, Yong Hui Lee, Hyojin Park, Hanchan Lee, Yu Ra Jeong, Sang Woo Jin, Kayeon Keum, Jeong Sook Ha
Summary: This study demonstrates high sensitivity pressure and temperature sensors based on P3HT-coated ECF, showing great potential for bio-signal monitoring. The pressure sensor exhibits high sensitivity, fast response time, and high cyclic durability, while the temperature sensor shows high sensitivity within the body temperature range.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Analytical
Hyun-Seung Cho, Jin-Hee Yang, Sang-Yeob Lee, Jeong-Whan Lee, Joo-Hyeon Lee
Summary: In this study, a noncontact fabric loop sensor based on magnetic-field-induced conductivity was developed to simultaneously detect cardiac activity and respiration signals. The effects of the sensor's shape and measurement position on the sensing performance were analyzed, and it was found that the spiral loop sensor obtained the highest-quality signal when measured at position P4 or P6.
Article
Chemistry, Analytical
Rou Feng, Yifeng Mu, Xiangwen Zeng, Weijie Jia, Yuxuan Liu, Xijun Jiang, Qibei Gong, Youfan Hu
Summary: The study introduces a flexible integrated sensor system capable of independently measuring bending strain and pressure with low-cost fabrication and good performance. This system shows great application potential in motion monitoring and intelligent human-machine interfaces.
Article
Engineering, Electrical & Electronic
Hajer Abed, Simon Bellemare-Rousseau, Benjamin Belanger-Huot, Mehran Ahadi, Etienne Drouin, Mourad Roudjane, Marc-Andre Dugas, Amine Miled, Younes Messaddeq
Summary: A new wearable smart T-Shirt design for monitoring breathing rate using Received Signal Strength Indicator (RSSI) is proposed. The design includes a wireless sensor for monitoring breathing rate, a wireless power transfer system, and a user interface for analyzing the collected data. The study presents breathing curves obtained from a breathing sensor incorporated in a smart T-shirt and applies data analysis methods to extract important parameters for medical diagnosis. Additional results are also presented for different tests on male and female subjects using another design of a smart T-shirt system consisting of an array of six sensors.
IEEE SENSORS JOURNAL
(2022)
Article
Chemistry, Analytical
Kee S. Moon, Sung Q. Lee
Summary: Wireless sensing systems play a crucial role in continuous health monitoring and data collection. They enable real-time patient data collection, eliminating the need for time-consuming and expensive hospital or lab visits. This technology utilizes wearable sensors, signal processing, and wireless data transfer to remotely monitor patients' health.
Article
Biophysics
Jieyu Dai, Linlin Li, Bojing Shi, Zhou Li
Summary: Self-powered sensors in respiratory monitoring have great potential and applications due to their low cost and easy preparation, but the establishment of reasonable respiratory disease models remains challenging.
BIOSENSORS & BIOELECTRONICS
(2021)
Article
Materials Science, Multidisciplinary
Duo Chen, Ting Zhang, Wei Geng, Dehui Sun, Xiaoyan Liu, Yang Li, Hong Liu, Weijia Zhou
Summary: Human-robot interaction is crucial in the field of robotics, and a flexible piezoresistive pressure sensor based on carbon nanotubes/carbon cloth (CNTs/CC) has been proposed for this purpose. This sensor offers high sensitivity and an appropriate pressure response range, making it suitable for human-robot interaction and improving the tactile perception of robots.
ADVANCED MATERIALS TECHNOLOGIES
(2022)
Article
Materials Science, Ceramics
Ji Wu, Yifan Chen, Wenhao Shen, Ying Wu, Jean-Pierre Corriou
Summary: Due to its biodegradability, biocompatibility, hydrophilicity, and surface area, nanocellulose has potential for use in flexible humidity sensors. In this study, a TiO2/CNC humidity sensor was developed using nanocellulose prepared enzymatically. TiO2 nanoparticles were adsorbed onto the CNC surface, creating conductive fibers through electrostatic self-assembly. The TiO2/CNC composite exhibited high transparency, flexibility, and mechanical strength. The humidity sensor showed high response, rapid speed, durability, and stability. The TiO2/CNC sensor also demonstrated excellent performance in real-time monitoring of human body moisture.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Analytical
Mitar Simic, Adrian K. Stavrakis, Ankita Sinha, Velibor Premcevski, Branko Markoski, Goran M. Stojanovic
Summary: The study aims to develop a portable and lightweight handheld respiration monitoring device for disease recognition. The device utilizes a textile capacitive sensor and readout electronics for monitoring, powered by a smartphone or PC. The embroidered sensor has been tested and proven to provide stable and reliable respiration monitoring.
Article
Nanoscience & Nanotechnology
Chuan-yu Guo, Qi-chao Hu, Ying-ming Xu, Xian-fa Zhang, Shan Gao, Hui Zhao, Miao-miao Xu, Xiao-li Cheng, Li-hua Huo
Summary: By doping KCl to improve humidity sensitivity of sensing materials, a uniform distribution of KCl-doped Dy2O3 nanomaterial has been designed and synthesized to greatly enhance the performance of the humidity sensor, with the ability of low-humidity detection. It shows good response characteristics in human body monitoring, indicating potential for future intelligent applications such as low-humidity detection and respiration monitoring.
ACS APPLIED NANO MATERIALS
(2021)
Article
Chemistry, Analytical
Emilio Andreozzi, Jessica Centracchio, Vincenzo Punzo, Daniele Esposito, Caitlin Polley, Gaetano D. Gargiulo, Paolo Bifulco
Summary: This study introduces a novel technique for respiration monitoring, forcecardiography (FCG), which shows higher sensitivity, precision, accuracy, and interbreath interval measurement compared to ECG-derived respiration (EDR) and electroresistive respiration band (ERB). The simultaneous recording of respiration signals and forcecardiograms using FCG sensors provides a promising approach for monitoring multiple vital signs and analyzing cardiorespiratory interactions, especially for patients with heart and pulmonary diseases.
Article
Engineering, Biomedical
Haik Kalantarian, Costas Sideris, Bobak Mortazavi, Nabil Alshurafa, Majid Sarrafzadeh
IEEE TRANSACTIONS ON BIOMEDICAL ENGINEERING
(2017)
Article
Engineering, Electrical & Electronic
Diliang Chen, Yi Cai, Ming-Chun Huang
IEEE SENSORS JOURNAL
(2018)
Article
Computer Science, Artificial Intelligence
Shibo Zhang, William Stogin, Nabil Alshurafa
INFORMATION FUSION
(2018)
Article
Computer Science, Hardware & Architecture
Haotian Jiang, James Starkman, Menghan Liu, Ming-Chun Huang
IEEE CONSUMER ELECTRONICS MAGAZINE
(2018)
Letter
Dermatology
S. Xu, T. K. Stump, J. Jain, N. Alshurafa, J. K. Robinson
BRITISH JOURNAL OF DERMATOLOGY
(2019)
Book Review
Religion
L. U. K. E. J. STEVENS
JOURNAL OF THEOLOGICAL STUDIES
(2022)
Article
Religion
Luke J. Stevens
EPHEMERIDES THEOLOGICAE LOVANIENSES
(2022)
Article
History
Luke J. Stevens
Summary: This article discusses the reported Old Testament canon of twenty-four books by Melito of Sardis and its connection to the twenty-four elders in Revelation. Victorinus of Poetovio adopted Melito's interpretation and added his own variation. The article also examines the relationship between the writings of Melito and Victorinus with those of Irenaeus and Papias. It suggests a reconsideration of Melito's place in the patristic tradition and proposes that his Extracts, written around 150 AD in Rome, had a pivotal influence in the West.
JOURNAL OF EARLY CHRISTIAN STUDIES
(2022)
Article
Religion
Luke J. Stevens
JOURNAL OF THEOLOGICAL STUDIES
(2020)
Article
Religion
Luke J. Stevens
JOURNAL OF THEOLOGICAL STUDIES
(2019)
Proceedings Paper
Engineering, Biomedical
Shibo Zhang, Dzung Tri Nguyen, Gan Zhang, Runsheng Xu, Nikolaos Maglaveras, Nabil Alshurafa
2018 IEEE/ACM INTERNATIONAL CONFERECE ON CONNECTED HEALTH: APPLICATIONS, SYSTEMS AND ENGINEERING TECHNOLOGIES (CHASE)
(2018)
Article
History
Luke J. Stevens
JOURNAL OF EARLY CHRISTIAN STUDIES
(2018)
Article
History
Luke J. Stevens
JOURNAL OF EARLY CHRISTIAN STUDIES
(2018)
Review
Computer Science, Interdisciplinary Applications
Tri Vu, Feng Lin, Nabil Alshurafa, Wenyao Xu
Article
Computer Science, Information Systems
Haik Kalantarian, Nabil Alshurafa, Majid Sarrafzadeh
IEEE PERVASIVE COMPUTING
(2017)