{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,19]],"date-time":"2026-08-19T08:26:09Z","timestamp":1787127969996,"version":"build-2736575974"},"reference-count":32,"publisher":"Wiley","issue":"38","license":[{"start":{"date-parts":[[2026,4,16]],"date-time":"2026-04-16T00:00:00Z","timestamp":1776297600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2026,4,16]],"date-time":"2026-04-16T00:00:00Z","timestamp":1776297600000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["advanced.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Advanced Science"],"published-print":{"date-parts":[[2026,7]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>\n                    Surface\u2010enhanced infrared absorption (SEIRA) spectroscopy has emerged as a powerful technique, amplifying inherently weak molecular vibration signatures to enable ultrasensitive detection of molecular structure and dynamics. However, conventional SEIRA platforms based on noble metals or 2D materials are fundamentally constrained by their narrow spectral bandwidths and limited access to high\u2010frequency vibrational modes. Here, we demonstrate an ultrabroadband SEIRA approach that overcomes these limitations by activating acoustic plasmon modes in two\u2010dimensional Ti\n                    <jats:sub>3<\/jats:sub>\n                    C\n                    <jats:sub>2<\/jats:sub>\n                    T\n                    <jats:italic>\n                      <jats:sub>x<\/jats:sub>\n                    <\/jats:italic>\n                    MXene. These acoustic plasmons provide deep subwavelength confinement, compressing wavelengths by more than two orders of magnitude relative to free space in the short\u2010wave infrared (SWIR), and sustaining an unprecedented spectral bandwidth of approximately 5000 cm\n                    <jats:sup>\u2013<\/jats:sup>\n                    <jats:sup>1<\/jats:sup>\n                    . Using this platform, we achieve simultaneous detection of distinct vibrational fingerprints\u2014from high\u2010frequency CH\n                    <jats:sub>3<\/jats:sub>\n                    combination bands near 4700 cm\n                    <jats:sup>\u22121<\/jats:sup>\n                    to low\u2010frequency out\u2010of\u2010plane bending modes around 700 cm\n                    <jats:sup>\u22121<\/jats:sup>\n                    \u2014in ultrathin analytes such as 8\u00a0nm PMMA and 10\u00a0nm graphene oxide films, with up to an order\u2010of\u2010magnitude sensitivity enhancement. These results establish acoustic plasmon modes in MXene as a transformative foundation for ultrabroadband, high\u2010sensitivity deep\u2010infrared spectroscopy, paving the way for next\u2010generation molecular sensing technologies.\n                  <\/jats:p>","DOI":"10.1002\/advs.75346","type":"journal-article","created":{"date-parts":[[2026,4,16]],"date-time":"2026-04-16T19:38:04Z","timestamp":1776368284000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Ultrabroadband and Highly Sensitive Short\u2010Wave Infrared Molecular Fingerprinting via Acoustic MXene Plasmons"],"prefix":"10.1002","volume":"13","author":[{"given":"Changhoon","family":"Park","sequence":"first","affiliation":[{"name":"KU\u2010KIST Graduate School of Converging Science and Technology Korea University  Seoul Republic of Korea"},{"name":"A. J. Drexel Nanomaterials Institute and Department of Materials Science and Engineering Drexel University  Philadelphia Pennsylvania USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jisung","family":"Kwon","sequence":"additional","affiliation":[{"name":"KU\u2010KIST Graduate School of Converging Science and Technology Korea University  Seoul Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nu\u2010Ri","family":"Park","sequence":"additional","affiliation":[{"name":"KU\u2010KIST Graduate School of Converging Science and Technology Korea University  Seoul Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hyerim","family":"Kim","sequence":"additional","affiliation":[{"name":"School of Advanced Materials Science &amp; Engineering Sungkyunkwan University  Suwon\u2010si Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hyeju","family":"Kim","sequence":"additional","affiliation":[{"name":"KU\u2010KIST Graduate School of Converging Science and Technology Korea University  Seoul Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yury","family":"Gogotsi","sequence":"additional","affiliation":[{"name":"A. 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Drexel Nanomaterials Institute and Department of Materials Science and Engineering Drexel University  Philadelphia Pennsylvania USA"},{"name":"Department of Materials Science and Engineering Korea University  Seoul Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8674-9236","authenticated-orcid":false,"given":"Chong Min","family":"Koo","sequence":"additional","affiliation":[{"name":"School of Advanced Materials Science &amp; Engineering Sungkyunkwan University  Suwon\u2010si Republic of Korea"},{"name":"School of Chemical Engineering Sungkyunkwan University  Suwon\u2010si Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8896-6912","authenticated-orcid":false,"given":"Myung\u2010Ki","family":"Kim","sequence":"additional","affiliation":[{"name":"KU\u2010KIST Graduate School of Converging Science and Technology Korea University  Seoul Republic of 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