Enhancing Luminescence and X-ray Absorption Capacity of Eu3+:LaF3 Nanoparticles by Bi3+ Codoping
González Mancebo, D. ; Becerro, A.I. ; Corral, A. ; Moros, M. (Universidad de Zaragoza) ; Balcerzyk, M. ; De la Fuente, J.M. ; Ocaña, M.
Resumen: Bi3+ codoping has been proposed in this work with a twofold objective, namely, enhancing the luminescence emission of Eu3+:LaF3 nanoparticles (NPs) and increasing their X-ray attenuation capacity, with the purpose of obtaining a bimodal bioprobe for luminescence bioimaging and X-ray computed tomography. The synthesis method, reported here for the first time for LaF3 particles, allowed obtaining uniform, nonaggregated NPs using a homogeneous precipitation in polyol medium at room temperature in just 2 h. The simplicity of the synthesis method allows the large-scale production of NPs. LaF3 NPs with different Eu3+ contents were first synthesized to find the critical Eu3+ concentration, producing the highest emission intensity. This concentration was subsequently used to fabricate Bi3+-Eu3+-codoped LaF3 NPs using the same method. The emission intensity of the codoped NPs increased in more than one order of magnitude, thanks to the possibility of excitation through the Bi3+ ¿ Eu3+ energy-transfer band. The luminescence properties of the codoped NPs were analyzed in detail to find the mechanism responsible for the emission enhancement. Finally, it was demonstrated that the high atomic number of Bi3+, higher than that of lanthanides, was an added value of the material because it increased its X-ray attenuation capacity. In summary, the LaF3 NPs codoped with Eu3+ and Bi3+ presented in this work are promising candidates as a bimodal bioprobe for luminescence bioimaging and X-ray computed tomography.
Idioma: Inglés
DOI: 10.1021/acsomega.8b03160
Año: 2019
Publicado en: ACS OMEGA 4, 1 (2019), 765-774
ISSN: 2470-1343
Factor impacto JCR: 2.87 (2019)
Categ. JCR: CHEMISTRY, MULTIDISCIPLINARY rank: 81 / 176 = 0.46 (2019) - Q2 - T2
Factor impacto SCIMAGO: 0.767 - Chemistry (miscellaneous) (Q1) - Chemical Engineering (miscellaneous) (Q1)
Financiación: info:eu-repo/grantAgreement/ES/CSIC/PIC2016FR1
Financiación: info:eu-repo/grantAgreement/ES/CSIC/PIE201460E005
Financiación: info:eu-repo/grantAgreement/ES/DGA/FSE
Tipo y forma: Article (Published version)
Área (Departamento): Área Química Orgánica (Dpto. Química Orgánica)
You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. You may not use the material for commercial purposes.
Exportado de SIDERAL (2023-09-21-13:28:45)
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Idioma: Inglés
DOI: 10.1021/acsomega.8b03160
Año: 2019
Publicado en: ACS OMEGA 4, 1 (2019), 765-774
ISSN: 2470-1343
Factor impacto JCR: 2.87 (2019)
Categ. JCR: CHEMISTRY, MULTIDISCIPLINARY rank: 81 / 176 = 0.46 (2019) - Q2 - T2
Factor impacto SCIMAGO: 0.767 - Chemistry (miscellaneous) (Q1) - Chemical Engineering (miscellaneous) (Q1)
Financiación: info:eu-repo/grantAgreement/ES/CSIC/PIC2016FR1
Financiación: info:eu-repo/grantAgreement/ES/CSIC/PIE201460E005
Financiación: info:eu-repo/grantAgreement/ES/DGA/FSE
Tipo y forma: Article (Published version)
Área (Departamento): Área Química Orgánica (Dpto. Química Orgánica)
You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. You may not use the material for commercial purposes. Exportado de SIDERAL (2023-09-21-13:28:45)
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Record created 2019-02-19, last modified 2023-09-21