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Micro-Fabricated RTD Based Sensor for Breathing Analysis and Monitoring

Bilel Neji, Ndricim Ferko, Raymond Ghandour, Abdullah S. Karar, Houssam Arbess
2021 Sensors  
The design, micro-fabrication, and characterization of a resistance temperature detector (RTD) based micro sensor for minimally invasive breathing analysis and monitoring is presented.  ...  The RTD is placed into a Wheatstone bridge to simultaneously reduce the sensor's output noise and improve overall system accuracy.  ...  Conclusions We demonstrate the operation of a micro-fabricated RTD based breathing monitoring sensor.  ... 
doi:10.3390/s21010318 pmid:33466505 fatcat:bbu53fp26jg2nkskbbjc6w5kmy

Fabrication and Evaluation of a Flexible MEMS-Based Microthermal Flow Sensor

Myoung-Ock Cho, Woojin Jang, Si-Hyung Lim
2021 Sensors  
Based on the results of computational fluid dynamics simulations, this study designed and fabricated a flexible thermal-type micro flow sensor comprising one microheater and two thermistors using a micro-electromechanical  ...  This study's MEMS-based flexible microthermal flow sensor achieved a resolution of 1.1 cm/s in a liquid flow and 0.64 cm/s in a gas flow, respectively, within a fluid flow velocity range of 0–40 cm/s.  ...  Data Availability Statement: Please contact the corresponding author for data requests. Conflicts of Interest: The authors declare no conflict of interest.  ... 
doi:10.3390/s21238153 pmid:34884155 fatcat:sgo6ikzud5hnjh4ee2ietk26fu

E-Skin: The Dawn of a New Era of On-Body Monitoring Systems

Alina-Cristina Bunea, Violeta Dediu, Edwin Alexandru Laszlo, Florian Pistriţu, Mihaela Carp, Florina Silvia Iliescu, Octavian Narcis Ionescu, Ciprian Iliescu
2021 Micromachines  
Firstly, we revised the material development for e-skin systems. Secondly, aspects related to fabrication techniques were presented.  ...  Next, the main applications of e-skin systems in monitoring, such as temperature, pulse, and other bio-electric signals related to health status, were analyzed.  ...  The optic fiber sensors could be used to monitor muscle movements and breathing. Triboelectric Nanogenerators (TENGs). Wang et al.  ... 
doi:10.3390/mi12091091 pmid:34577734 fatcat:vlube5dtt5fvlcjomattxinhli

Recent Developments in Printing Flexible and Wearable Sensing Electronics for Healthcare Applications

Saleem Khan, Shawkat Ali, Amine Bermak
2019 Sensors  
, breath rate, respiration, alcohol, activity monitoring, etc., have potential applications both in medical diagnostics and fitness monitoring.  ...  Special focus is given to printable materials and sensors, which are key enablers for wearable electronics.  ...  Acknowledgments: We are thankful to the Qatar National Library (QNL) for supporting the publication charges of this review article.  ... 
doi:10.3390/s19051230 fatcat:ok2xdmlrhfbzfki2wvc67ayg2u

Recent Progress in Flexible Wearable Sensors for Vital Sign Monitoring

Jihong Liu, Meilin Liu, Yu Bai, Jiahao Zhang, Hongwei Liu, Wenbin Zhu
2020 Sensors  
Based on them, this paper reviews the latest research progress of new flexible materials and different types of sensors for monitoring vital signs (including electrophysiological signals, body temperature  ...  These materials and sensors can help realize accurate signal detection based on comfortable and sustainable observation, and may likely be applied to future daily clothing.  ...  Acknowledgments: The authors acknowledge support of Academy of Innovation and Entrepreneurship of Northeastern University. Conflicts of Interest: The authors declare no conflict of interest.  ... 
doi:10.3390/s20144009 pmid:32707637 fatcat:5wop7zw3xfeyxjfxrfwjs3thim

Smart Textiles and Sensorized Garments for Physiological Monitoring: A Review of Available Solutions and Techniques

Alessandra Angelucci, Matteo Cavicchioli, Ilaria A. Cintorrino, Giuseppe Lauricella, Chiara Rossi, Sara Strati, Andrea Aliverti
2021 Sensors  
Several wearable devices for physiological and activity monitoring are found on the market, but most of them only allow spot measurements.  ...  This can be achieved with the application of textile technologies for sensorized garments, where the sensors are completely embedded in the fabric.  ...  The traditional sensors used for temperature sensing are resistance temperature detectors (RTDs), thermistors, and thermocouples [75] .  ... 
doi:10.3390/s21030814 pmid:33530403 fatcat:pxwtinvj3jccbdvml53dwidij4

Development Trends in Electronics Printed: Intelligent Textiles Produced with the Use of Printing Techniques on Textile Substrates [chapter]

Wieslawa Urbaniak-Domagala, Ewa Skrzetuska, Malgorzata Komorowska, Izabella Krucinska
2016 Printed Electronics - Current Trends and Applications  
Such materials can be used for monitoring, for example, the rhythm of breathing. The aim of this study was to develop a sensor of strains for the needs of wearable electronics.  ...  A resistance-type sensor was made on a knitted fabric with shape memory, dedicated to monitor motor activity of human.  ...  Acknowledgements The authors would like to thank Henryk Wrzosek for SEM investigations of samples.  ... 
doi:10.5772/62962 fatcat:hlh5yca3indrxl7pz4fnpumgfq

Advanced Functional Materials for Intelligent Thermoregulation in Personal Protective Equipment

Alireza Saidi, Chantal Gauvin, Safa Ladhari, Phuong Nguyen-Tri
2021 Polymers  
Being based on conductive and functional polymeric materials, smart textiles can detect many external stimuli and react to them.  ...  Interconnected sensors and actuators that interact and react to existing risks can provide the wearer with increased safety, protection, and comfort.  ...  pipes together in fabrication A textile structure of hollow double-wall Optical fiber Bragg grating (FBG)-based sensor integrated into textile and between-walls for smart fabric fabric was adopted as a  ... 
doi:10.3390/polym13213711 pmid:34771268 pmcid:PMC8587695 fatcat:dymbyufiuzeaxoxbhbofy7cqsq

Breathable and Stretchable Temperature Sensors Inspired by Skin

Ying Chen, Bingwei Lu, Yihao Chen, Xue Feng
2015 Scientific Reports  
Flexible electronics attached to skin for healthcare, such as epidermal electronics, has to struggle with biocompatibility and adapt to specified environment of skin with respect to breath and perspiration  ...  Therefore the demanding for a wearable and comfortable temperature sensor with enough accuracy which can attach to the human skin for several days is strongly desired.  ...  Weibang Lv, from Suzhou Institute of Nano-Tech and Nano-Bionics (SINANO), to provide the carbon nanotube thin films. We gratefully acknowledge the support from the National Basic  ... 
doi:10.1038/srep11505 pmid:26095941 pmcid:PMC4476093 fatcat:mkxpq6s3pjde5cjwrqx6am37ma

Micropreconcentrators: Recent Progress in Designs and Applications

Agnieszka Stolarczyk, Tomasz Jarosz
2022 Sensors  
., adsorption/desorption, are one of the solutions for increasing the sensitivity of chemical detection.  ...  The primary goal of this review is to report on and briefly explain the most relevant recent developments related to the design and applications of preconcentrators.  ...  the monitoring of the presence and concentrations of various VOCs in exhaled breath.  ... 
doi:10.3390/s22041327 pmid:35214229 pmcid:PMC8963072 fatcat:zg4ats45vjb7hejs5ry6ba55s4

Evolution of Wearable Devices with Real-Time Disease Monitoring for Personalized Healthcare

Guk, Han, Lim, Jeong, Kang, Lim, Jung
2019 Nanomaterials  
through small sensors and biomedical devices, and greatly improve the quality and efficacy of medical services.  ...  , physiological health monitoring and evaluation.  ...  Textile-based diagnostic devices incorporate sensors, such as electrodes and fabrics, or by sewing electrodes into fabric [35, 36] .  ... 
doi:10.3390/nano9060813 pmid:31146479 pmcid:PMC6631918 fatcat:awefdgfr45exzkgajald5wk3ya

Revolution in Flexible Wearable Electronics for Temperature and Pressure Monitoring—A Review

Muhammad A. Butt, Nikolay L. Kazanskiy, Svetlana N. Khonina
2022 Electronics  
Wearable sensors range in size from tiny to large tools that are physically affixed to the user and operate on wired or wireless terms.  ...  With increasing technological capabilities and a greater grasp of current research procedures, the usage of wearable sensors has a brighter future.  ...  In the active layer of flexible tactile sensors, template approaches are recognized as a significant way for micro-nanoprocessing.  ... 
doi:10.3390/electronics11050716 fatcat:5ux3o3gcqnglncngmiw3su2gpa

Gold leads to PRTs for monitoring high temperatures

J R Greenwood, P R N Childs, P Chaloner
1999 Gold Bulletin  
This paper describes the application of the gold ink and the analysis of the films produced, along with a description of the sensor fabrication and performance.  ...  This paper reports the design and development of a thin film instrument for temperature monitoring.  ...  The authors also thank Dr D E Hole and Mr D P Randall for their assistance in performing the spectral and microscopic analysis presented in this article, Mr W KOng for manufacturing the sensor, and Mr  ... 
doi:10.1007/bf03216615 fatcat:ksvwse55jjfcjbvj62wijmdmwi

Flexible Sensors—From Materials to Applications

Júlio C. Costa, Filippo Spina, Pasindu Lugoda, Leonardo Garcia-Garcia, Daniel Roggen, Niko Münzenrieder
2019 Technologies  
Flexible sensors have the potential to be seamlessly applied to soft and irregularly shaped surfaces such as the human skin or textile fabrics.  ...  Consequently, materials and structures for innovative flexible sensors, as well as their integration into systems, continue to be in the spotlight of research.  ...  for the fabrication of smart implants and prosthetics with advanced health monitoring capabilities  ... 
doi:10.3390/technologies7020035 fatcat:p5znlbmebnefbj7jta3tk7sfwu

A Review on Biosensors and Recent Development of Nanostructured Materials-Enabled Biosensors

Varnakavi. Naresh, Nohyun Lee
2021 Sensors  
molecules, and (iii) miniaturization of the biosensing devices using micro-and nano-fabrication technologies.  ...  diagnosis, environmental monitoring, water and food quality monitoring, and drug delivery.  ...  This device can be used to monitor human breathing [134] .  ... 
doi:10.3390/s21041109 pmid:33562639 pmcid:PMC7915135 fatcat:2oki5w7sxncoldwvrjf3n3hloi
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