Effect of Zn2+, Fe3+ and Cr3+ addition to hydroxyapatite for its application as an active constituent of sunscreens

Araujo, Tatiana Santos de; Souza, Susana Oliveira de; Sousa, Edésia Martins Barros de

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Campo DC	Valor	Lengua/Idioma
dc.contributor.author	Araujo, Tatiana Santos de	-
dc.contributor.author	Souza, Susana Oliveira de	-
dc.contributor.author	Sousa, Edésia Martins Barros de	-
dc.date.accessioned	2025-03-21T16:03:59Z	-
dc.date.available	2025-03-21T16:03:59Z	-
dc.date.issued	2010	-
dc.identifier.citation	ARAUJO, T. S.; SOUZA, S. O.; SOUSA, E. M. B. Effect of Zn2+, Fe3+ and Cr3+ addition to hydroxyapatite for its application as an active constituent of sunscreens. Journal of Physics: Conference Series, v. 249, 2010. Trabalho apresentado em 16º International Conference on Defects in Insulating Materials, 2008, [Aracaju]. Disponível em: https://iopscience.iop.org/article/10.1088/1742-6596/249/1/012012/pdf. Acesso em: 21 mar. 2025.	pt_BR
dc.identifier.issn	1742-6596	-
dc.identifier.issn	1742-6588	-
dc.identifier.uri	https://ri.ufs.br/jspui/handle/riufs/21420	-
dc.language	eng	pt_BR
dc.publisher	IOP Publishing	pt_BR
dc.relation.ispartof	Journal of Physics: Conference Series	pt_BR
dc.subject	Hydroxyapatite	eng
dc.subject	X-ray diffraction	eng
dc.subject	Optical absorption	eng
dc.subject	Sunscreens	eng
dc.title	Effect of Zn2+, Fe3+ and Cr3+ addition to hydroxyapatite for its application as an active constituent of sunscreens	pt_BR
dc.type	Trabalhos em Eventos	pt_BR
dc.identifier.license	Creative Commons Atribuição 4.0 Internacional (CC BY 4.0)	pt_BR
dc.description.resumo	Biocompatible phosphate materials are used in different applications like bone and dental implants, drug delivery systems and others, but could also be applied in inorganic sunscreens. Using sunscreens is extremely necessary, because long time exposure to sun can cause skin cancer. In this work chemical precipitation method has been used to produce hydroxyapatite. Cr3+, Zn2+ and Fe3+ doped samples were characterized using powder X-Ray Diffraction (XRD) and Optical Absorption techniques. X-ray diffraction measurements confirmed the materials were in the expected crystalline structures. The crystallite size as measured from the X-ray pattern was 23–27 nm (±1).The absorption spectra in the ultraviolet and visible ranges indicate that appropriately doped and sized hydroxyapatite particles may have potential applications as active constituents of sunscreens.	pt_BR
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