Paper-based wearable ultra-sensitive strain sensors for fitness monitoring
Aqsa Javaida b, Muhammad Hamza Zulfiqarc d, Muhammad Shoaib Saleema b, Muhammad Atif Khane f, Muhammad Faizan Zubaire g, Muhammad Qasim Mehmoodb g✉, Yehia Massoude h
- aInformation Technology University of the Punjab, MicroNano Lab, Electrical Engineering Department, Information Technology University (ITU) of the Punjab, Ferozepur Road, Lahore 54600, Pakistan, Lahore, Punjab, 54600, PAKISTAN
- bMicroNano Lab, Department of Electrical Engineering, Information Technology University (ITU) of the Punjab, Ferozepur Road, Lahore 54600, Pakistan
- cDepartment of Biomedical Engineering, Narowal Campus, University of Engineering and Technology, Lahore 54890, Pakistan
- dUniversity of Engineering and Technology, Department of Biomedical Engineering, Narowal Campus, University of Engineering and Technology, Lahore 54890, Pakistan, Lahore, 54600, PAKISTAN
- eInnovative Technologies Laboratories (ITL), King Abdullah University of Science and Technology (KAUST), Thuwal 23955, Saudi Arabia
- fKing Abdullah University of Science and Technology, Innovative Technologies Laboratories (ITL), King Abdullah University of Science, Thuwal, Thuwal, Makkah, 23955, SAUDI ARABIA
- gInformation Technology University of the Punjab, MicroNano Lab, Electrical Engineering Department, Information Technology University (ITU) of the Punjab, Ferozepur Road, Lahore 54600, Pakistan, Lahore, 54600, PAKISTAN
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Abstract
Abstract Emerging technologies that exhibit features of biodegradability and eco-friendliness are potential game changers. Paper is a cost-effective and easily available material that has proved itself a promising candidate for manufacturing strain sensors due to its easy integration into flexible electronics. In this work, an ultra-sensitive and highly stable strain sensor is presented. Easily available materials are used for sensors development and very easy and simple fabrication. The modified interdigital capacitor structure is fabricated on a simple printing paper, whereas copper tape is used as an electrode material. In the anticipated work, the milestones of high sensitivity, durability, and fast response time are achieved. The proposed flexible strain sensor is eco-friendly, bio-degradable, inexpensive, and responds well to applied strain. The proposed work exhibits a fast response time of 0.56 s. The high gauge factor value of 3040.26 and stability up to 5000 cycles. The proposed prototype has been also implemented on the human body for monitoring physical activities and fitness exercises. The proposed strain sensor is an outstandingly good option for assimilation into wearable systems like remote healthcare systems, electromechanical sensing, and human physical monitoring.