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Express"],"published-print":{"date-parts":[[2026,6,29]]},"abstract":"<jats:p>\n                    Biomass carbon dots (CDs) have attracted more attention owing to their low cost, environmental sustainability, better biocompatibility, and low toxicity. However, it remains a major challenge to obtain CDs with high stability and superior luminescence properties. Herein,\n                    <jats:italic toggle=\"yes\">Angelica dahurica<\/jats:italic>\n                    powder, a renewable and abundant Chinese herbal resource, was selected as a biomass carbon source, and high-performance blue fluorescence-emitting carbon dots (AD-CDs) were prepared by a one-step solvothermal method. Comprehensive characterizations of the composition and optical properties reveal that the AD-CDs possess abundant functional groups, excellent water solubility, and remarkable photoluminescence stability. An experimental study indicates that Fe\n                    <jats:sup>3+<\/jats:sup>\n                    ions exert a distinct quenching effect on the AD-CDs with a low detection limit of 0.167 \u03bcmol\/L. Furthermore, the fluorescence quenching induced by Fe\n                    <jats:sup>3+<\/jats:sup>\n                    can be effectively reversed using ascorbic acid, demonstrating potential for reversible sensing applications. In summary, the AD-CDs derived from\n                    <jats:italic toggle=\"yes\">A. dahurica<\/jats:italic>\n                    promote their application in sensing technologies and contribute to the development of green and renewable nanomaterials.\n                  <\/jats:p>","DOI":"10.1364\/oe.597270","type":"journal-article","created":{"date-parts":[[2026,6,4]],"date-time":"2026-06-04T13:30:32Z","timestamp":1780579832000},"page":"23760","update-policy":"https:\/\/doi.org\/10.1364\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["<i>Angelica dahurica<\/i>\n                    -derived carbon dots as a sensitive fluorescent probe for Fe\n                    <sup>3+<\/sup>\n                    : investigation of quenching mechanism and ascorbic acid-induced fluorescence recovery"],"prefix":"10.1364","volume":"34","author":[{"given":"Lei","family":"Zhang","sequence":"first","affiliation":[{"name":"Hebei GEO University"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mingjun","family":"Chen","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/01p884a79","id-type":"ROR","asserted-by":"publisher"}]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jiaqing","family":"Xu","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/01p884a79","id-type":"ROR","asserted-by":"publisher"}]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Dawei","family":"Wang","sequence":"additional","affiliation":[{"name":"Hebei Ledphor Optoelectronics Technology Co., Ltd."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Chunsheng","family":"Wang","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/01p884a79","id-type":"ROR","asserted-by":"publisher"}]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6619-0562","authenticated-orcid":true,"given":"Xu","family":"Li","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/01p884a79","id-type":"ROR","asserted-by":"publisher"}]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yibo","family":"Zheng","sequence":"additional","affiliation":[{"name":"Hebei GEO University"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"285","published-online":{"date-parts":[[2026,6,18]]},"reference":[{"key":"oe-34-13-23760-R1","doi-asserted-by":"publisher","first-page":"752","DOI":"10.1038\/s41467-025-56153-w","type":"journal-article","volume":"16","author":"Pang","year":"2025","journal-title":"Nat. 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