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In this work, a double\u2010network (DN) conductive hydrogel, comprising NaCl\u2010coordinated agarose and poly (2\u2010hydroxyethyl acrylate\u2010co\u2010acrylic acid) (Agarose\/P(HEA\u2010co\u2010AA)\u2010Al\/NaCl) (APA\u2010hydrogel), was synthesized. The agarose forms a stable first network, while the second network is established by P(HEA\u2010co\u2010AA) through aluminum ion coordination. Immersion in NaCl solution leads to the formation of hydrated sodium ions ([Na(H\n                    <jats:sub>2<\/jats:sub>\n                    O)n]\n                    <jats:sup>+<\/jats:sup>\n                    ), which are anchored within the hydrogel matrix via hydrogen bonding and metal coordination. The resulting APA\u2010hydrogel was applied as a triboelectric nanogenerator (APA\u2010TENG), demonstrating excellent performance with an open\u2010circuit voltage of 900\u2005V, a short\u2010circuit current of 73.42\u2005\u03bcA, and a peak power output of 3.52\u2005mW at a 3\u2005M\u03a9 load. APA\u2010TENG shows strong potential for energy harvesting and powering low\u2010power devices, as well as real\u2010time sensing for motion and fall detection, making it highly suitable for wearable and assistive technologies powered by human activity.\n                  <\/jats:p>","DOI":"10.1002\/open.202400394","type":"journal-article","created":{"date-parts":[[2025,3,12]],"date-time":"2025-03-12T01:08:43Z","timestamp":1741741723000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":4,"title":["A Flexible and Stretchable Triboelectric Nanogenerator with Agarose\/P(HEA\u2010co\u2010AA)\u2010Al\/NaCl Electrodes for Bio\u2010Mechanical Energy Harvesting and Fall Detection"],"prefix":"10.1002","volume":"14","author":[{"given":"Xiwei","family":"Liu","sequence":"first","affiliation":[{"name":"Sports College Lanzhou City University  Lanzhou City Gansu Province 730070 China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0004-7439-6623","authenticated-orcid":false,"given":"Hui","family":"Zhang","sequence":"additional","affiliation":[{"name":"Military Sports Department Changchun Sci-Tech University  Changchun 130600 China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2025,3,5]]},"reference":[{"key":"e_1_2_7_1_1","doi-asserted-by":"publisher","DOI":"10.3390\/ijerph17103554"},{"key":"e_1_2_7_2_1","doi-asserted-by":"publisher","DOI":"10.1109\/ACCESS.2020.2986329"},{"key":"e_1_2_7_3_1","first-page":"103","author":"Adeniyi E. 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