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Increased UV absorption properties of natural hydroxyapatite-based sunscreen through laser ablation modification in liquid

2019Journal article Restricted access
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dc.contributor.authorPiccirillo, Clara
dc.contributor.authorFernández‐Arias, Mónica
dc.contributor.authorBoutinguiza, Mohamed
dc.contributor.authorTobaldi, David M.
dc.contributor.authorDel Val, Jesus
dc.contributor.authorPintado, Maria M.
dc.contributor.authorPou, Juan
dc.date.accessioned2019-01-04T11:00:55Z
dc.date.available2021-06-21T00:30:16Z
dc.date.issued2019
dc.description.abstractSunfilters based on hydroxyapatite (HAp) and iron‐containing compounds (Fe2O3 and calcium iron phosphates) are of increasing interest, as they show UV absorption without generating health endanger free radicals (usually observed when other inorganic sunscreens are used). In this paper, laser ablation of solids in liquids has been applied to improve the UV absorption properties of a HAp based Fe‐containing sunscreen powder derived from cod fish bones. Two different laser wavelengths were explored (532 and 1064 nm, green and infrared, respectively); an improved experimental device was used, to allow a fine control of the volume of the irradiated particles. Results show an increased UV absorbance for the laser‐treated powders in comparison with the untreated ones; this can be explained considering the smaller particle size and increased surface area; the higher iron concentration in the powders may also be determinant. Enhanced absorption was also observed in the near‐infrared range, making the powders even more suitable for sunscreen applications. The green laser was more effective than the infrared one. Overall, laser ablation showed to be a powerful technique to control the size of the sunscreen particles and tailor their optical properties.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationPiccirillo, C., Fernandéz-Arias, M., Boutinguiza, M., Tobaldi, D.M., Del Val, J., Pintado, Maria M., Pou, J. (2019). Increased UV absorption properties of natural hydroxyapatite-based sunscreen through laser ablation modification in liquid. Journal of the American Ceramic Society, 102(6), 3163-3174pt_PT
dc.identifier.doi10.1111/jace.16209
dc.identifier.eid85057759003
dc.identifier.eissn1551-2916
dc.identifier.issn0002-7820
dc.identifier.urihttp://hdl.handle.net/10400.14/26612
dc.identifier.wos000465347700016
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherAmerican Ceramic Society
dc.relationED481B 2016/047-0
dc.relation2015-0243
dc.relationEAPA_151/2016
dc.relationMAT2015-71459-C2-P
dc.relationPRX17/00157
dc.titleIncreased UV absorption properties of natural hydroxyapatite-based sunscreen through laser ablation modification in liquidpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876/UID%2FMulti%2F50016%2F2013/PT
oaire.citation.endPage3174
oaire.citation.issue6
oaire.citation.startPage3163
oaire.citation.titleJournal of the American Ceramic Societypt_PT
oaire.citation.volume102
oaire.fundingStream5876
person.familyNamePiccirillo
person.familyNameTobaldi
person.familyNamedel Val Garcia
person.familyNamePintado
person.familyNamePou
person.givenNameClara
person.givenNameDavid Maria
person.givenNameJesus
person.givenNameMaria Manuela
person.givenNameJuan
person.identifier962551
person.identifier456608
person.identifier121179
person.identifier.ciencia-id391B-75ED-6983
person.identifier.ciencia-id6515-3493-6B27
person.identifier.ciencia-id2F13-AAE0-3405
person.identifier.orcid0000-0002-6339-716X
person.identifier.orcid0000-0002-0112-8570
person.identifier.orcid0000-0002-6951-6000
person.identifier.orcid0000-0002-0760-3184
person.identifier.orcid0000-0002-8848-5617
person.identifier.ridN-8206-2013
person.identifier.ridF-5696-2013
person.identifier.ridA-1295-2013
person.identifier.scopus-author-id7004621626
person.identifier.scopus-author-id16319626100
person.identifier.scopus-author-id56522729400
person.identifier.scopus-author-id7004483898
person.identifier.scopus-author-id55812414700
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsrestrictedAccesspt_PT
rcaap.typearticlept_PT
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