Performance Analysis of Wearable and Flexible Humidity Sensor Integrated to Face Mask for Respiration Monitoring

Tekçin, Meltem; Kuzubaşoğlu, Burcu Arman; Sayar, Ersin; Yalçın, Mehmet Kürşat; Bahadır, Senem Kurşun

doi:10.1109/ecice52819.2021.9645733

Cited by 5 publications

(8 citation statements)

References 10 publications

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“…After the mixing procedure, ethylene glycol was added to adjust the ink viscosity, and Triton X-100 was added to adjust the surface tension of the ink where both chemicals are added simultaneously. Details of the formulation study are given in [27]. In the end, a homogeneous printing ink was obtained suitable for the inkjet printing method.…”

Section: Ink Formulation For Inkjet Printingmentioning

confidence: 99%

“…Otherwise, inkjet printing is not possible. The most important of these ink parameters are the viscosity, surface tension, and contact angle of the ink [27]. The dynamic viscosity of the prepared printing ink was measured with the Fungilab alpha device (L model, ˙Istanbul, Turkey).…”

Section: Ink Formulation For Inkjet Printingmentioning

confidence: 99%

“…The number of passes applied was 15. After each printing, a drying process was applied at 120 • C for 2 min to prevent slipping and dispersion [27]. After the printing process, silver-plated polyamide yarn was placed at both ends of the humidity sensor.…”

Section: Humidity Sensor Design and Fabricationmentioning

confidence: 99%

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Wearable and Flexible Humidity Sensor Integrated to Disposable Diapers for Wetness Monitoring and Urinary Incontinence

et al. 2022

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Disposable diapers are widely used by individuals with urinary incontinence. Diapers should be checked frequently for elderly, disabled, and hospital patients. Wet diapers that are not changed properly can cause health problems. The importance of electronic devices that provide warning in case of wetness is increasing in health monitoring. A disposable and wearable printed humidity sensor was designed and fabricated to detect wetness. The sensor was printed on polyamide-based taffeta label fabric by the inkjet printing method using specifically formulated PEDOT:PSS-based conductive polymer ink. The sensor sensitivity was tested under different relative humidity levels inside a controlled chamber. The resistance of the sensor decreased from 17.05 ± 0.05 MΩ to 2.09 ± 0.06 MΩ as the relative humidity increased from 35 to 100%, while the moisture value of the fabric increased from 4.8 to 23%. The response and recovery times were 42 s and 82 s. This sensor was integrated into the adult diaper to evaluate wetness. The sensor resistance change comparing to the dry state resistance (15.52 MΩ) was determined as 3.81 MΩ to 13.62 MΩ by dripping 0.1 mL to 100 mL salty water on the diaper. Due to its flexible structure and low-cost printability onto fabric, the wearable printed humidity sensor has the potential to be used as a disposable sensor for healthcare applications, particularly for urinary incontinence and capturing wetness in diapers.

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Section: Ink Formulation For Inkjet Printingmentioning

confidence: 99%

Section: Ink Formulation For Inkjet Printingmentioning

confidence: 99%

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Wearable and Flexible Humidity Sensor Integrated to Disposable Diapers for Wetness Monitoring and Urinary Incontinence

et al. 2022

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“…The optimized textile mask effectively monitored the respiratory activity of the subject. The integration of the humidity sensor into the textile mask was also used in another study [259], where, instead of graphite ink, PEDOT:PSS ink was used. PEDOT:PSS, with a conductive ink specifically formulated in the study, was printed on polyamide-based taffeta label fabric by an inkjet printing method.…”

Section: Change In Breathing Gas Temperature Humidity and Pressurementioning

confidence: 99%

Advances in Respiratory Monitoring: A Comprehensive Review of Wearable and Remote Technologies

Vitazkova,

Foltan,

Kosnacova

et al. 2024

Biosensors

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This article explores the importance of wearable and remote technologies in healthcare. The focus highlights its potential in continuous monitoring, examines the specificity of the issue, and offers a view of proactive healthcare. Our research describes a wide range of device types and scientific methodologies, starting from traditional chest belts to their modern alternatives and cutting-edge bioamplifiers that distinguish breathing from chest impedance variations. We also investigated innovative technologies such as the monitoring of thorax micromovements based on the principles of seismocardiography, ballistocardiography, remote camera recordings, deployment of integrated optical fibers, or extraction of respiration from cardiovascular variables. Our review is extended to include acoustic methods and breath and blood gas analysis, providing a comprehensive overview of different approaches to respiratory monitoring. The topic of monitoring respiration with wearable and remote electronics is currently the center of attention of researchers, which is also reflected by the growing number of publications. In our manuscript, we offer an overview of the most interesting ones.

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“…In contact printing method, the surface with ink is in direct contact with the substrate, while in noncontact printing method, the ink prepared in solution is dispersed or sprayed onto the substrate [26]. Inkjet [27], [28], and aerosol jet printing [29] techniques are the examples of non-contact printing methods. On the other hand, some kinds of contact printing techniques are screen printing [30], gravure printing [31], flexographic [32], and pad printing [22] methods.…”

Section: Introductionmentioning

confidence: 99%

Wearable UHF-RFID Sensor for Wetness Detection

Tekcin,

Palandoken,

Kursun

2023

IEEE Access

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The use of wearable textile Radio Frequency Identification (RFID) sensors is becoming widespread in many different application areas because of their technical utilization advantages. In this study, a textile-based Ultra High Frequency (UHF) RFID sensor that can be used to detect wetness has been developed and fabricated with a pad printing machine using silver conductive ink. The overall physical dimension of the proposed sensor structure is 75.0 mm × 38.0 mm × 0.12 mm. Two different types of Received Signal Strength Indicator (RSSI) measurement setups in near field region and at practical separation distances emulating more realistic environmental conditions have been carried out to test and validate the applicability of the proposed sensor. Water, saline and urine solutions have been used to evaluate different wetting conditions in the near field RSSI measurements by dropping different solutions on the RFID sensor integrated diaper. A permissible signal difference of at least 17 dBm has been detected between the wet and dry states of the proposed wetness detection sensor. The performance of the proposed RFID sensor has been evaluated using different separation distances of 32 cm, 40 cm and 50 cm with the practical result of maximum reading range to be 50 cm for the reliable determination of the binary wetness states. In addition, the performance of the RFID wetness sensor against different bending and deformation conditions is almost robust. It is concluded that the proposed sensor structure can be integrated onto the patient's diapers to facilitate the reliable detection of wetness states in cases such as urinary incontinence in remote health monitoring systems.

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Performance Analysis of Wearable and Flexible Humidity Sensor Integrated to Face Mask for Respiration Monitoring

Cited by 5 publications

References 10 publications

Wearable and Flexible Humidity Sensor Integrated to Disposable Diapers for Wetness Monitoring and Urinary Incontinence

Wearable and Flexible Humidity Sensor Integrated to Disposable Diapers for Wetness Monitoring and Urinary Incontinence

Advances in Respiratory Monitoring: A Comprehensive Review of Wearable and Remote Technologies

Wearable UHF-RFID Sensor for Wetness Detection

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