{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,31]],"date-time":"2026-01-31T05:19:52Z","timestamp":1769836792868,"version":"3.49.0"},"reference-count":27,"publisher":"MDPI AG","issue":"2","license":[{"start":{"date-parts":[[2022,1,14]],"date-time":"2022-01-14T00:00:00Z","timestamp":1642118400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100015045","name":"Kaohsiung Armed Forces General Hospital","doi-asserted-by":"publisher","award":["KAFGH_D_110028"],"award-info":[{"award-number":["KAFGH_D_110028"]}],"id":[{"id":"10.13039\/501100015045","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Polymers"],"abstract":"<jats:p>Polyvinylidene fluoride (PVDF) and AgNO3\/PVDF composite piezoelectric fibers were prepared using near-field electrospinning technology. The prepared fibers are attached to the electrode sheet and encapsulated with polydimethylsiloxane to create an energy acquisition device and further fabricated into a dynamic sensing element. The addition of AgNO3 significantly increased the conductivity of the solution from 40.33 \u03bcS\/cm to 883.59 \u03bcS\/cm, which in turn made the fiber drawing condition smoother with the increase of high voltage electric field and reduced the fiber wire diameter size from 0.37 \u03bcm to 0.23 \u03bcm. The tapping test shows that the voltage signal can reach ~0.9 V at a frequency of 7 Hz, and the energy conversion efficiency is twice that of the PVDF output voltage. The addition of AgNO3 effectively enhances the molecular bonding ability, which effectively increases the piezoelectric constants of PVDF piezoelectric fibers. When the human body is exercised for a long period of time and the body is overloaded, the biceps muscle is found to produce 8 to 16 tremors\/second through five arm flexion movements. The voltage output of the flexible dynamic soft sensor is between 0.7\u20130.9 V and shows an orderly alternating current waveform of voltage signals. The sensor can be used to detect muscle tremors after high-intensity training and to obtain advance information about changes in the symptoms of fasciculation, allowing for more accurate diagnosis and treatment.<\/jats:p>","DOI":"10.3390\/polym14020331","type":"journal-article","created":{"date-parts":[[2022,1,16]],"date-time":"2022-01-16T20:45:21Z","timestamp":1642365921000},"page":"331","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":13,"title":["Development of Flexible Biceps Tremors Sensing Chip of PVDF Fibers with Nano-Silver Particles by Near-Field Electrospinning"],"prefix":"10.3390","volume":"14","author":[{"given":"Chung-Kun","family":"Yen","sequence":"first","affiliation":[{"name":"Department of Mechanical and Electro-Mechanical Engineering, National Sun Yat-sen University, Kaohsiung 80424, Taiwan"},{"name":"Department of Mechanical and Automation Engineering, I-Shou University, Kaohsiung 84001, Taiwan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Karishma","family":"Dutt","sequence":"additional","affiliation":[{"name":"Department of Mechanical and Electro-Mechanical Engineering, National Sun Yat-sen University, Kaohsiung 80424, Taiwan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yu-Syuan","family":"Yao","sequence":"additional","affiliation":[{"name":"Institute of Biomedical Sciences, National Sun Yat-sen University, Kaohsiung 80424, Taiwan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Wen-Jeng","family":"Wu","sequence":"additional","affiliation":[{"name":"Graduate Institute of Clinical Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 80756, Taiwan"},{"name":"Department of Urology, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 80756, Taiwan"},{"name":"Department of Urology, Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung 80145, Taiwan"},{"name":"Center for Stem Cell Research, Kaohsiung Medical University, Kaohsiung 80756, Taiwan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0798-5028","authenticated-orcid":false,"given":"Yow-Ling","family":"Shiue","sequence":"additional","affiliation":[{"name":"Institute of Biomedical Sciences, National Sun Yat-sen University, Kaohsiung 80424, Taiwan"},{"name":"Institute of Precision Medicine, National Sun Yat-sen University, Kaohsiung 80424, Taiwan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Cheng-Tang","family":"Pan","sequence":"additional","affiliation":[{"name":"Department of Mechanical and Electro-Mechanical Engineering, National Sun Yat-sen University, Kaohsiung 80424, Taiwan"},{"name":"Institute of Precision Medicine, National Sun Yat-sen University, Kaohsiung 80424, Taiwan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Chi-Wen","family":"Chen","sequence":"additional","affiliation":[{"name":"Department of Orthopaedics, Kaohsiung Armed Forces General Hospital, Kaohsiung 80284, Taiwan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Wen-Fan","family":"Chen","sequence":"additional","affiliation":[{"name":"Institute of Medical Science and Technology, National Sun Yat-sen University, Kaohsiung 80424, Taiwan"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2022,1,14]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"13232","DOI":"10.1039\/C8TC04297G","article-title":"A highly sensitive and flexible capacitive pressure sensor based on a micro-arrayed polydimethylsiloxane dielectric layer","volume":"6","author":"Ma","year":"2018","journal-title":"J. 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