Virucidal efficacy of a portable pulsed UV light device: experimental study at Chubu and Tohoku Universities
Rattachement africain : jp. Niveau de preuve : code pays fourni par la source.
Le résumé fourni par la source
Background: In emergency medical settings, healthcare professionals are frequently exposed to unknown viruses and bacteria. To reduce environmental contamination, portable pulsed ultraviolet (UV) light disinfection devices are increasingly used. However, their virucidal efficacy has not been fully clarified. Methods: This experimental study evaluated the efficacy of a portable pulsed UV device against five viruses: feline calicivirus (FCV, F4 strain), influenza A virus (IAV, A/NWS/33 strain), herpes simplex virus type 2 (HSV-2, UW 268 strain), poliovirus type 3 (PV-3, Sabin strain), and SARS-CoV-2. Viruses were irradiated for 1, 5, or 10 s at distances of 1, 5, or 10 cm. Experiments with FCV, IAV, HSV-2, and PV-3 were conducted at Chubu University under BSL-2 conditions. SARS-CoV-2 testing was performed at Tohoku University under BSL-3. Results: The device demonstrated significant virucidal activity, particularly at a distance of ≤5 cm and exposures of ≥5 s. Both enveloped and non-enveloped viruses were effectively inactivated. Conclusion: This study shows that a portable pulsed UV device can rapidly inactivate diverse clinically relevant viruses, supporting its role in environmental decontamination in emergency care.Key policy highlights:A portable pulsed UV disinfection light device demonstrated virucidal efficacy against multiple viruses.The device exhibited optimal virucidal activity at irradiation distances of ≤5 cm and irradiation durations of ≥5 s.The pulsed UV irradiation device was effective against both enveloped and non-enveloped viruses.
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Le contrôle bibliographique ouvert
DOI retrouvé dans Crossref DOI retrouvé ; titre concordant.
- Titre Crossref
- Virucidal efficacy of a portable pulsed UV light device: experimental study at Chubu and Tohoku Universities
- Date Crossref
- 16/09/2025
- Éditeur
- Informa UK Limited
- Type
- journal-article
Ce recoupement confirme des métadonnées liées au DOI. Il ne confirme ni la méthode ni les conclusions de l’étude, et il ne compte pas comme une seconde source scientifique indépendante.
Où se fait cette recherche
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Tokai University Department of Emergency and Critical Care pays non établi dans la noticeUniversité ou école supérieure
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Tokai University Hospital pays non établi dans la noticeÉtablissement de santé
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Tohoku University Department of Environmental Medicine and Molecular Toxicology pays non établi dans la noticeUniversité ou école supérieure
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Omuta hospital pays non établi dans la noticeÉtablissement de santé
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Chubu University pays non établi dans la noticeUniversité ou école supérieure
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National Hospital Organization Omuta National Hospital Department of Respiratory Medicine pays non établi dans la noticeÉtablissement de santé
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College of Life and Health Sciences Department of Clinical Engineering pays non établi dans la noticeUniversité ou école supérieure
Department of Emergency and Critical Care — Tokai University, Tokai University Hospital et Department of Environmental Medicine and Molecular Toxicology — Tohoku University, avec 4 autres affiliations.
Une affiliation ne permet pas de déduire la nationalité d’un auteur.