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Article

Experimental Characterization of Inkjet-Printed Stretchable Circuits for Wearable Sensor Applications

1
Department of Mechatronics Engineering/NanoLab, School of Applied Technical Sciences, German Jordanian University, Amman 11180, Jordan
2
Department of Electronics & Communications Engineering, Arab Academy for Science, Technology and Maritime Transport, Cairo 11799, Egypt
*
Author to whom correspondence should be addressed.
Sensors 2018, 18(10), 3476; https://doi.org/10.3390/s18103476
Received: 20 August 2018 / Revised: 29 September 2018 / Accepted: 11 October 2018 / Published: 16 October 2018
(This article belongs to the Special Issue Inkjet Production of Sensors)
This paper introduces a cost-effective method for the fabrication of stretchable circuits on polydimethylsiloxane (PDMS) using inkjet printing of silver nanoparticle ink. The fabrication method, presented here, allows for the development of fully stretchable and wearable sensors. Inkjet-printed sinusoidal and horseshoe patterns are experimentally characterized in terms of the effect of their geometry on stretchability, while maintaining adequate electrical conductivity. The optimal fabricated circuit, with a horseshoe pattern at an angle of 45°, is capable of undergoing an axial stretch up to a strain of 25% with a resistance under 800 Ω. The conductivity of the circuit is fully reversible once it is returned to its pre-stretching state. The circuit could also undergo up to 3000 stretching cycles without exhibiting a significant change in its conductivity. In addition, the successful development of a novel inkjet-printed fully stretchable and wearable version of the conventional pulse oximeter is demonstrated. Finally, the resulting sensor is evaluated in comparison to its commercially available counterpart. View Full-Text
Keywords: inkjet printing; printed sensors; silver nanoparticles; stretchable sensors inkjet printing; printed sensors; silver nanoparticles; stretchable sensors
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MDPI and ACS Style

Abu-Khalaf, J.; Saraireh, R.; Eisa, S.; Al-Halhouli, A. Experimental Characterization of Inkjet-Printed Stretchable Circuits for Wearable Sensor Applications. Sensors 2018, 18, 3476. https://doi.org/10.3390/s18103476

AMA Style

Abu-Khalaf J, Saraireh R, Eisa S, Al-Halhouli A. Experimental Characterization of Inkjet-Printed Stretchable Circuits for Wearable Sensor Applications. Sensors. 2018; 18(10):3476. https://doi.org/10.3390/s18103476

Chicago/Turabian Style

Abu-Khalaf, Jumana; Saraireh, Razan; Eisa, Saleh; Al-Halhouli, Ala’aldeen. 2018. "Experimental Characterization of Inkjet-Printed Stretchable Circuits for Wearable Sensor Applications" Sensors 18, no. 10: 3476. https://doi.org/10.3390/s18103476

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