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Adv."],"published-print":{"date-parts":[[2026,7,31]]},"abstract":"<jats:p>Coherent Raman imaging (CRI) enables label-free chemical imaging based on intrinsic molecular vibrations, but its applicability is often limited by low sensitivity, hindering the detection of low-abundance biomolecules. Although electronic resonance enhances sensitivity, most resonance CRI implementations rely on narrowband excitation and\/or detection, which limits spectral coverage and complicates the differentiation of target molecules from complex backgrounds. Here, we address these challenges by developing broadband electronic resonance coherent anti-Stokes\/Stokes Raman scattering (BER-CARS\/CSRS) microscopy. We show that BER-CARS\/CSRS enables highly sensitive, label-free imaging of endogenous chromophores with broad spectral coverage of the entire fingerprint region. Specifically, we captured time-lapse images, visualizing low-abundance cytochromes alongside abundant biomolecules (lipids, proteins, and nucleic acids) in living human embryonic kidney (HEK) 293 cells. Furthermore, we applied the method to mouse tissues, highlighting characteristic localizations of cytochromes in the brain cortex, the cerebral ventricle wall, and the liver. Our results demonstrate that BER-CARS\/CSRS provides highly sensitive, label-free chemical imaging from organelle dynamics to tissue mapping, enabling quantitative phenotyping and slide-scale histopathology.<\/jats:p>","DOI":"10.1126\/sciadv.aec4772","type":"journal-article","created":{"date-parts":[[2026,7,31]],"date-time":"2026-07-31T17:58:34Z","timestamp":1785520714000},"update-policy":"https:\/\/doi.org\/10.34133\/aaas_crossmark","source":"Crossref","is-referenced-by-count":0,"title":["Broadband electronic resonance coherent anti-Stokes\/Stokes Raman scattering microscopy"],"prefix":"10.1126","volume":"12","author":[{"ORCID":"https:\/\/orcid.org\/0009-0009-1942-6910","authenticated-orcid":true,"given":"Yusuke","family":"Murakami","sequence":"first","affiliation":[{"name":"International Institute for Integrative Sleep Medicine (WPI-IIIS), Tsukuba Institute for Advanced Research (TIAR), University of Tsukuba, Ibaraki 305-8575, Japan."},{"name":"Ph.D. Program in Humanics, University of Tsukuba, Ibaraki 305-8577, Japan."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0804-7220","authenticated-orcid":true,"given":"Minori","family":"Masaki","sequence":"additional","affiliation":[{"name":"International Institute for Integrative Sleep Medicine (WPI-IIIS), Tsukuba Institute for Advanced Research (TIAR), University of Tsukuba, Ibaraki 305-8575, Japan."},{"name":"Ph.D. Program in Humanics, University of Tsukuba, Ibaraki 305-8577, Japan."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Norihide","family":"Sagami","sequence":"additional","affiliation":[{"name":"Department of Chemistry, Faculty of Science, Kyushu University, Fukuoka 819-0395, Japan."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ikuto","family":"Eshima","sequence":"additional","affiliation":[{"name":"Department of Chemistry, Faculty of Science, Kyushu University, Fukuoka 819-0395, Japan."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7089-3914","authenticated-orcid":true,"given":"Ryosuke","family":"Oketani","sequence":"additional","affiliation":[{"name":"Department of Chemistry, Faculty of Science, Kyushu University, Fukuoka 819-0395, Japan."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7358-4022","authenticated-orcid":true,"given":"Masashi","family":"Yanagisawa","sequence":"additional","affiliation":[{"name":"International Institute for Integrative Sleep Medicine (WPI-IIIS), Tsukuba Institute for Advanced Research (TIAR), University of Tsukuba, Ibaraki 305-8575, Japan."},{"name":"Department of Molecular Genetics, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3682-7627","authenticated-orcid":true,"given":"Hideaki","family":"Kano","sequence":"additional","affiliation":[{"name":"Department of Biosciences and Informatics, Faculty of Science and Technology, Keio University, Kanagawa 223-8522, Japan."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sakiko","family":"Honjoh","sequence":"additional","affiliation":[{"name":"International Institute for Integrative Sleep Medicine (WPI-IIIS), Tsukuba Institute for Advanced Research (TIAR), University of Tsukuba, Ibaraki 305-8575, Japan."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0767-019X","authenticated-orcid":true,"given":"Kotaro","family":"Hiramatsu","sequence":"additional","affiliation":[{"name":"Department of Chemistry, Faculty of Science, Kyushu University, Fukuoka 819-0395, Japan."}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"221","reference":[{"key":"e_1_3_2_2_2","doi-asserted-by":"publisher","DOI":"10.1103\/PhysRevLett.82.4142"},{"key":"e_1_3_2_3_2","doi-asserted-by":"publisher","DOI":"10.1126\/science.1165758"},{"key":"e_1_3_2_4_2","doi-asserted-by":"publisher","DOI":"10.1038\/nphoton.2014.145"},{"key":"e_1_3_2_5_2","doi-asserted-by":"publisher","DOI":"10.1146\/annurev-bioeng-071114-040554"},{"key":"e_1_3_2_6_2","doi-asserted-by":"crossref","unstructured":"J. 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