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Postmortem interval estimation of human skeletonized remains through luminol chemiluminescence

2024Journal article Open access
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dc.contributor.authorErmida, Catarina
dc.contributor.authorRosa, Joana
dc.contributor.authorCunha, Eugénia
dc.contributor.authorFerreira, Maria Teresa
dc.date.accessioned2024-10-29T16:27:16Z
dc.date.available2024-10-29T16:27:16Z
dc.date.issued2024
dc.description.abstractPostmortem interval (PMI) estimation represents a significant challenge in the forensic sciences, particularly when dealing with human skeletal remains. A screening protocol for distinguishing possible remains of forensic interest is a crucial tool for judicial purposes. In this context, luminol chemiluminescence emerges as a promising method, with low overall costs and required time. This method is primarily used as a presumptive test, based on the understanding that the intensity of the chemiluminescence reactions decreases with an increase in the postmortem interval, thus underlining its practical implications. This research aims to expand previous research on the potential of luminol chemiluminescence, evaluating its usefulness in estimating PMI. Our sample comprised 239 human clavicles, with known PMI. The luminol solution was sprayed on each powder bone sample in a dark room, observed by the naked eye and photographed. The intensity of the chemiluminescence reaction was measured using a binary and a 5-level scale. The present results reveal that this method is a suitable tool for PMI estimation as a presumptive test, reducing time and costs in criminal investigations. The findings underscore the high sensitivity of luminol chemiluminescence for detecting recent PMI but also highlight a notable incidence of false positives. Thus, our results confirm luminol chemiluminescence as a powerful tool for dating time of death, particularly for identifying forensic relevant remains. Still, the relatively low specificity indicates that it should be complemented with additional tests for further confirmation and scientific validation of the remains’ forensic relevance.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationErmida, C., Rosa, J., Cunha, E., & Ferreira, M. T. (2024). Postmortem interval estimation of human skeletonized remains through luminol chemiluminescence. International journal of legal medicine, 10.1007/s00414-024-03343-8. Advance online publication.pt_PT
dc.identifier.doi10.1007/s00414-024-03343-8pt_PT
dc.identifier.issn1437-1596
dc.identifier.urihttp://hdl.handle.net/10400.26/52662
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherSpringerpt_PT
dc.relationWhen chemistry meets anthropology: taphonomy and trauma of burned bones
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectChemiluminescencept_PT
dc.subjectForensic Anthropologypt_PT
dc.subjectHuman skeletal remainspt_PT
dc.subjectLuminolpt_PT
dc.subjectPostmortem intervalpt_PT
dc.titlePostmortem interval estimation of human skeletonized remains through luminol chemiluminescencept_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleWhen chemistry meets anthropology: taphonomy and trauma of burned bones
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/Concurso de avaliação no âmbito do Programa Plurianual de Financiamento de Unidades de I&D (2017%2F2018) - Financiamento Base/UIDB%2F04004%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//SFRH%2FBD%2F145225%2F2019/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/POR_CENTRO/2020.06253.BD/PT
oaire.citation.titleInternational Journal of Legal Medicinept_PT
oaire.fundingStreamConcurso de avaliação no âmbito do Programa Plurianual de Financiamento de Unidades de I&D (2017/2018) - Financiamento Base
oaire.fundingStreamPOR_CENTRO
person.familyNameCunha
person.givenNameEugénia
person.identifierhttps://scholar.google.pt/citations?user=HSGHLA0AAAAJ&hl=en
person.identifier.ciencia-idE717-5464-E13B
person.identifier.orcid0000-0003-2998-371X
person.identifier.scopus-author-id190305008042
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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relation.isAuthorOfPublication.latestForDiscovery32c59c7d-e7f2-4023-91a0-677db952e161
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