{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,12]],"date-time":"2026-09-12T06:09:48Z","timestamp":1789193388410,"version":"build-2803163510"},"reference-count":35,"publisher":"Wiley","license":[{"start":{"date-parts":[[2026,9,11]],"date-time":"2026-09-11T00:00:00Z","timestamp":1789084800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2026,9,11]],"date-time":"2026-09-11T00:00:00Z","timestamp":1789084800000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"funder":[{"DOI":"10.13039\/501100002923","name":"Consejo Nacional de Investigaciones Cient\u00edficas y T\u00e9cnicas","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100002923","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100007868","name":"Secretar\u00eda de Ciencia y T\u00e9cnica, Universidad Nacional de R\u00edo Cuarto","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100007868","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100006668","name":"Fondo para la Investigaci\u00f3n Cient\u00edfica y Tecnol\u00f3gica","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100006668","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Photochem &amp;amp; Photobiology"],"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>\n                    Millimeter\u2010sized chitosan spheres covalently functionalized with Rose Bengal (ME\u2010CS\u2010RB) were developed as reusable heterogeneous photosensitizers capable of generating singlet oxygen (\n                    <jats:sup>1<\/jats:sup>\n                    O\n                    <jats:sub>2<\/jats:sub>\n                    ) under visible\u2010light irradiation. Structural and spectroscopic characterization confirmed the effective immobilization of the photosensitizer within the chitosan matrix without compromising its integrity. The photoactivity of ME\u2010CS\u2010RB was evaluated through the photosensitized degradation of furosemide as a model water contaminant under green LED irradiation, with scavenger experiments indicating that\n                    <jats:sup>1<\/jats:sup>\n                    O\n                    <jats:sub>2<\/jats:sub>\n                    is the predominant reactive oxygen species involved, consistent with a Type II photosensitization mechanism. The spheres exhibited good operational stability over successive reuse cycles. In parallel, the photodynamic potential of the system was demonstrated through the effective inactivation of both Gram\u2010positive (\n                    <jats:italic>Enterococcus faecalis<\/jats:italic>\n                    ) and Gram\u2010negative (\n                    <jats:italic>Escherichia coli<\/jats:italic>\n                    ) bacteria under visible\u2010light irradiation. The environmental relevance of the process was further assessed using phytotoxicity assays, which confirmed the neutralization of furosemide toxicity after photodegradation. Overall, these results demonstrate that ME\u2010CS\u2010RB spheres constitute a versatile photoactive platform integrating pollutant degradation and photodynamic inactivation, relevant to photochemical and photobiological applications.\n                  <\/jats:p>","DOI":"10.1111\/php.70155","type":"journal-article","created":{"date-parts":[[2026,9,12]],"date-time":"2026-09-12T05:44:56Z","timestamp":1789191896000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Rose Bengal\u2013functionalized chitosan spheres as singlet oxygen generators for photodegradation of water contaminants and photodynamic inactivation"],"prefix":"10.1111","author":[{"ORCID":"https:\/\/orcid.org\/0009-0005-2073-0320","authenticated-orcid":false,"given":"Alberto","family":"Barrera","sequence":"first","affiliation":[{"name":"Instituto Para el Desarrollo Agroindustrial y de la Salud (IDAS) CONICET \u2010 Universidad Nacional de R\u00edo Cuarto  R\u00edo Cuarto Argentina"},{"name":"Depto. 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