An epidermal passive wireless strain sensor using radio frequency identification (RFID) tags is presented. The tag is intended to detect eyebrow or neck skin stretch where paraplegic patients have the capability to tweak facial muscles. The tag is designed on a barium-titanate-loaded polydimethylsiloxane (PDMS) substrate and is assessed to demonstrate the strain gauge sensitivity and repeatability as a function of skin stretch.
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Rakibet et al. (2014) studied this question.
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