{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"omics_type":["Unknown"],"volume":["37(28)"],"submitter":["Lee JM"],"pubmed_abstract":["Water holds vast potential for a useful energy source, yet traditional approaches capture only a fraction of it. This study introduces a heterophilically designed carbon nanotube (CNT) yarn with an asymmetric configuration. This yarn is capable of both electrical and mechanical torsional energy harvesting through dual-scale hydration. Fabricated via half-electrochemical oxidation, the yarn contains a hydrophilic region enriched with oxygen-containing functional groups and a hydrophobic pristine CNT region. Molecular-scale hydration triggers proton release in the hydrophilic region. Consequently, a concentration gradient is established that generates a peak open-circuit voltage of 106.0 mV and a short-circuit current of 20.6 mA cm<sup>-2</sup>. Simultaneously, microscale hydration induces water absorption into inter-bundle microchannels, resulting in considerable yarn volume expansion. This process leads to hydro-driven actuation with a torsional stroke of 78.8° mm<sup>-1</sup> and a maximum rotational speed of 1012 RPM. The presented simultaneous harvesting results in electrical and mechanical power densities of 3.5 mW m<sup>-2</sup> and 34.3 W kg<sup>-1</sup>, respectively, during a hydration cycle. By integrating molecular and microscale hydrations, the proposed heterophilic CNT yarns establish an unprecedented platform for simultaneous electrical and mechanical energy harvesting from water, representing a groundbreaking development for sustainable applications."],"journal":["Advanced materials (Deerfield Beach, Fla.)"],"pagination":["e2501111"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC12272001"],"repository":["biostudies-literature"],"pubmed_title":["Dual-Scale Hydration-Induced Electrical and Mechanical Torsional Energy Harvesting in Heterophilically Designed CNT Yarns."],"pmcid":["PMC12272001"],"pubmed_authors":["Sim HJ","Choi C","Oh M","Kim SH","Seo H","Kim CS","Shin DM","Lee JM","Son W","Han D","Kim SJ"],"additional_accession":[]},"is_claimable":false,"name":"Dual-Scale Hydration-Induced Electrical and Mechanical Torsional Energy Harvesting in Heterophilically Designed CNT Yarns.","description":"Water holds vast potential for a useful energy source, yet traditional approaches capture only a fraction of it. This study introduces a heterophilically designed carbon nanotube (CNT) yarn with an asymmetric configuration. This yarn is capable of both electrical and mechanical torsional energy harvesting through dual-scale hydration. Fabricated via half-electrochemical oxidation, the yarn contains a hydrophilic region enriched with oxygen-containing functional groups and a hydrophobic pristine CNT region. Molecular-scale hydration triggers proton release in the hydrophilic region. Consequently, a concentration gradient is established that generates a peak open-circuit voltage of 106.0 mV and a short-circuit current of 20.6 mA cm<sup>-2</sup>. Simultaneously, microscale hydration induces water absorption into inter-bundle microchannels, resulting in considerable yarn volume expansion. This process leads to hydro-driven actuation with a torsional stroke of 78.8° mm<sup>-1</sup> and a maximum rotational speed of 1012 RPM. The presented simultaneous harvesting results in electrical and mechanical power densities of 3.5 mW m<sup>-2</sup> and 34.3 W kg<sup>-1</sup>, respectively, during a hydration cycle. By integrating molecular and microscale hydrations, the proposed heterophilic CNT yarns establish an unprecedented platform for simultaneous electrical and mechanical energy harvesting from water, representing a groundbreaking development for sustainable applications.","dates":{"release":"2025-01-01T00:00:00Z","publication":"2025 Jul","modification":"2026-03-31T10:30:42.76Z","creation":"2025-08-23T03:09:32.156Z"},"accession":"S-EPMC12272001","cross_references":{"pubmed":["40289894"],"doi":["10.1002/adma.202501111"]}}