Silica Nanoparticle-Based Portable Respiration Sensor for Analysis of Respiration Rate, Pattern, and Phase During Exercise

Kano, Shinya; Dobashi, Yuya; Fujii, Minoru

doi:10.1109/lsens.2017.2787099

Cited by 42 publications

(37 citation statements)

References 25 publications

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“…Respiration rate is one of the vital signs and directly relates to the condition of respiratory organs. In order to detect respiration rate remotely, several types of portable respiration sensors have been proposed [10][11][12][13][14][15][16][17] . Colloidal nanomaterial films are promising as a humidity-sensitive film to detect respiration 18,19 .…”

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confidence: 99%

All-Painting Process To Produce Respiration Sensor Using Humidity-Sensitive Nanoparticle Film and Graphite Trace

Kano

Fujii

2018

ACS Sustainable Chem. Eng.

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We propose an all-painting process to produce a respiration sensor made from a humiditysensitive nanoparticle (NP) film and a graphite trace. The sensor is fabricated under ambient air with a simple vacuum-free process for green electronics: solely hand-painting on a cellulose acetate film. A humidity-sensitive silica NP film is painted by brush on pencil-trace graphite electrodes. An all-painted humidity sensor using this film shows 10 6 % sensitivity within a 10-93% humidity change. The film is flexible and the humidity sensor operates as a respiration sensor after bending test. We design an all-painted respiration sensor using the humidity sensor

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confidence: 99%

All-Painting Process To Produce Respiration Sensor Using Humidity-Sensitive Nanoparticle Film and Graphite Trace

Kano

Fujii

2018

ACS Sustainable Chem. Eng.

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“…This change in capacitance or resistance can be measured and related to the inhaling and exhaling of air. Other types of sensor including the sensors using nanoparticles [55], nanocomposite [56], fiber Bragg grating (FBG) [57] and surface acoustic wave (SAW) [58] can be used as humidity sensors. However, monitoring systems using nanocomposites and nanoparticles have relatively slower response time [56].…”

Section: Air Humiditymentioning

confidence: 99%

Human Vital Signs Detection Methods and Potential Using Radars: A Review

Kebe

Gadhafi

Mohammad

et al. 2020

Sensors

126

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Continuous monitoring of vital signs, such as respiration and heartbeat, plays a crucial role in early detection and even prediction of conditions that may affect the wellbeing of the patient. Sensing vital signs can be categorized into: contact-based techniques and contactless based techniques. Conventional clinical methods of detecting these vital signs require the use of contact sensors, which may not be practical for long duration monitoring and less convenient for repeatable measurements. On the other hand, wireless vital signs detection using radars has the distinct advantage of not requiring the attachment of electrodes to the subject’s body and hence not constraining the movement of the person and eliminating the possibility of skin irritation. In addition, it removes the need for wires and limitation of access to patients, especially for children and the elderly. This paper presents a thorough review on the traditional methods of monitoring cardio-pulmonary rates as well as the potential of replacing these systems with radar-based techniques. The paper also highlights the challenges that radar-based vital signs monitoring methods need to overcome to gain acceptance in the healthcare field. A proof-of-concept of a radar-based vital sign detection system is presented together with promising measurement results.

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“…Humidity is considered one of the most important variables in human healthcare, and is relevant, for example, to monitoring respiration [207,208] . However, this type of sensor is rarely reported among the various different sensing functions of stretchable systems.…”

Section: Self‐healing Sensorsmentioning

confidence: 99%

Recent Progress in Self‐healing Materials for Sensor Arrays

Choa

2020

ChemNanoMat

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The recent development of diverse types of self‐healing materials promises increased material lifetimes, reduced replacement costs, and improved product safety in a wide variety of practical engineering applications. In particular, self‐healing materials provide advantages in electronic devices, conductors and sensors, as evidenced by their possible applications such as electronic skin, protectively conductive coating, adhesives, energy storage devices, aerospace, automobile, etc. To further the development of self‐healing materials for sensors and conductors, this review provides a summary of the current work. A short overview of self‐healing concepts and classification are presented, and some of the strengths and weaknesses of each type of self‐healing material are introduced and highlighted, in relation to various sensor applications. A perspective on self‐healing material approaches and development strategies using soft electronic technology is provided.

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Silica Nanoparticle-Based Portable Respiration Sensor for Analysis of Respiration Rate, Pattern, and Phase During Exercise

Cited by 42 publications

References 25 publications

All-Painting Process To Produce Respiration Sensor Using Humidity-Sensitive Nanoparticle Film and Graphite Trace

All-Painting Process To Produce Respiration Sensor Using Humidity-Sensitive Nanoparticle Film and Graphite Trace

Human Vital Signs Detection Methods and Potential Using Radars: A Review

Recent Progress in Self‐healing Materials for Sensor Arrays

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