Injectable Polymer hydrogels a bio tissue synthesis for wearable IoT sensors

Aiswaryadevi, V. J.; Priyanka, G.; Nataraj, N.; Peter, S. Sam

doi:10.1016/j.matpr.2020.03.037

Cited by 2 publications

(1 citation statement)

References 28 publications

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“…Moreover, injectable polymer hydrogels are used for bio tissue synthesis for wearable IoT sensors [227]. Kim et al (2021) developed catechol-chitosan-diatom hydrogel based tremor sensor for Parkinson's disease [228].…”

Section: Biomedical Applicationsmentioning

confidence: 99%

A review on thin films, conducting polymers as sensor devices

Prabakaran

Vadivu

Mouliprasanth

2022

Mater. Res. Express

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Thin film sensors are used to monitor environmental conditions by measuring the physical parameters. By using thin film technology, the sensors are capable of conducting precise measurements. Moreover, the measurements are stable and dependable. Furthermore, inexpensive sensor devices can be produced. In this paper, thin film technology for the design and fabrication of sensors that are used in various applications is reviewed. Further, the applications of thin film sensors in the fields of biomedical, energy harvesting, optical, and corrosion applications are also presented. From the review, the future research needs and future perspectives are identified and discussed.

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Section: Biomedical Applicationsmentioning

confidence: 99%

A review on thin films, conducting polymers as sensor devices

Prabakaran

Vadivu

Mouliprasanth

2022

Mater. Res. Express

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Ultrasoft Long-Lasting Reusable Hydrogel-Based Sensor Patch for Biosignal Recording

Tessier,

Zhuo,

Kabiri Ameri

2024

Biosensors

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Here, we report an ultrasoft extra long-lasting, reusable hydrogel-based sensor that enables high-quality electrophysiological recording with low-motion artifacts. The developed sensor can be used and stored in an ambient environment for months before being reused. The developed sensor is made of a self-adhesive electrical-conductivity-enhanced ultrasoft hydrogel mounted in an Ecoflex-based frame. The hydrogel’s conductivity was enhanced by incorporating polypyrrole (PPy), resulting in a conductivity of 0.25 S m−1. Young’s modulus of the sensor is only 12.9 kPa, and it is stretchable up to 190%. The sensor was successfully used for electrocardiography (ECG) and electromyography (EMG). Our results indicate that using the developed hydrogel-based sensor, the signal-to-noise ratio of recorded electrophysiological signals was improved in comparison to that when medical-grade silver/silver chloride (Ag/AgCl) wet gel electrodes were used (33.55 dB in comparison to 22.16 dB). Due to the ultra-softness, high stretchability, and self-adhesion of the developed sensor, it can conform to the skin and, therefore, shows low susceptibility to motion. In addition, the sensor shows no sign of irritation or allergic reaction, which usually occurs after long-term wearing of medical-grade Ag/AgCl wet gel electrodes on the skin. Further, the sensor is fabricated using a low-cost and scalable fabrication process.

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Injectable Polymer hydrogels a bio tissue synthesis for wearable IoT sensors

Cited by 2 publications

References 28 publications

A review on thin films, conducting polymers as sensor devices

A review on thin films, conducting polymers as sensor devices

Ultrasoft Long-Lasting Reusable Hydrogel-Based Sensor Patch for Biosignal Recording

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