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Nanostructured phosphors and core@shell systems containing rare earths: applications in biological labeling, lighting, and visualization

Grant number: 13/01669-1
Support Opportunities:Scholarships in Brazil - Post-Doctoral
Effective date (Start): July 01, 2013
Effective date (End): May 31, 2017
Field of knowledge:Physical Sciences and Mathematics - Chemistry - Inorganic Chemistry
Principal Investigator:Osvaldo Antonio Serra
Grantee:Paulo Cesar de Sousa Filho
Host Institution: Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto (FFCLRP). Universidade de São Paulo (USP). Ribeirão Preto , SP, Brazil
Associated scholarship(s):14/22930-2 - Rare Earth-based colloidal luminescent nanoparticles: fundamental studies at the single particle scale and applications as biolabels, BE.EP.PD


The rare earths (RE=Sc, Y, La-Lu) present a remarkable importance in the field of luminescent materials, since these elements have unique optical properties which are applicable in several systems involving the generation of visible light. The compounds that are classically applied to this end in commercial devices generally enable essentially inorganic solids, such as phosphates, vanadates, fluorides, and aluminates. This is mainly due to their chemical inertia, since they are stable under different operation conditions, not to mention their structural rigidity and their high luminescence efficiencies. Among the recent applications of these materials, the elaboration of phosphors for new generation lighting and visualization devices, such as Hg-free fluorescent lamps, plasma display panels and LED-based lamps and displays, as well as the development of luminescent labels for biological systems, currently raise a great interest. It is also well known that the morphology of the solids plays a crucial role on their applicability, since their use involves the adaptation of their properties through the control of size and crystallinity of the nanostructures. Thus, the study of synthetic procedures which allow for manipulating the architecture of these nanostructures is a limiting step for the development of such applications. In this sense, this project aims at obtaining luminescent nanoparticles and core@shell heteronanostructures based on TRPO4, TRVO4, TRF3, MTRF4 (M=Na, Li), and TR3Al5O12 solids, as well as the study of their applicability as vacuum ultraviolet and LED phosphors, and luminescent labels in biological systems.

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Scientific publications (14)
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
LEANDRO F. NASCIMENTO; PAULO C. DE SOUSA FILHO; JULIANA F. LIMA; OSVALDO A. SERRA. Kinetic Parameters of Soot Oxidation Catalyzed by Nanosized ZnO-CeO2 Solids. Journal of the Brazilian Chemical Society, v. 26, n. 7, p. 1315-1320, . (12/24165-6, 13/01669-1)
ZANATTA, L. D.; BARBOSA, I. A.; ZANARDI, F. B.; DE SOUSA FILHO, P. C.; BOLZON, L. B.; RAMOS, A. P.; SERRA, O. A.; IAMAMOTO, Y.. Hydrocarbon oxidation by iron-porphyrin immobilized on SBA-15 as biomimetic catalyst: role of silica surface. RSC ADVANCES, v. 6, n. 106, p. 104886-104896, . (13/01669-1)
DE SOUSA FILHO, PAULO C.; GACOIN, THIERRY; BOILOT, JEAN-PIERRE; WALTON, RICHARD I.; SERRA, OSVALDO A.. Synthesis and Luminescent Properties of REVO4-REPO4 (RE = Y, Eu, Gd, Er, Tm, or Yb) Heteronanostructures: A Promising Class of Phosphors for Excitation from NIR to VUV. Journal of Physical Chemistry C, v. 119, n. 42, p. 24062-24074, . (13/01669-1, 14/22930-2)
DE SOUSA FILHO, PAULO C.; LIMA, JULIANA F.; SERRA, OSVALDO A.. From Lighting to Photoprotection: Fundamentals and Applications of Rare Earth Materials. Journal of the Brazilian Chemical Society, v. 26, n. 12, p. 2471-2495, . (13/01669-1, 14/22930-2)
BARBOSA, ISALTINO A.; DE SOUSA FILHO, PAULO C.; DA SILVA, DOUGLAS L.; ZANARDI, FABRICIO B.; ZANATTA, LUCAS D.; DE OLIVEIRA, ADILSON J. A.; SERRA, OSVALDO A.; IAMAMOTO, YASSUKO. Metalloporphyrins immobilized in Fe3O4@SiO2 mesoporous submicrospheres: Reusable biomimetic catalysts for hydrocarbon oxidation. Journal of Colloid and Interface Science, v. 469, p. 296-309, . (13/01669-1, 13/08439-1, 14/22930-2)
NASCIMENTO, LEANDRO F.; DE SOUSA FILHO, PAULO C.; LIMA, JULIANA F.; SERRA, OSVALDO A.. Kinetic Parameters of Soot Oxidation Catalyzed by Nanosized ZnO-CeO2 Solids. Journal of the Brazilian Chemical Society, v. 26, n. 7, p. 1315-1320, . (13/01669-1, 12/24165-6)
PAULO C. DE SOUSA FILHO; OSVALDO A. SERRA. Terras raras no Brasil: histórico, produção e perspectivas. Química Nova, v. 37, n. 4, p. 753-760, . (13/01669-1, 08/09266-5)
LIMA, JULIANA F.; DE SOUSA FILHO, PAULO C.; SERRA, OSVALDO A.. Single crystalline rhabdophane-type CePO4 nanoparticles as efficient UV filters. CERAMICS INTERNATIONAL, v. 42, n. 6, p. 7422-7431, . (13/01669-1, 12/24165-6, 08/09629-0, 14/22930-2)
BARBOSA, ISALTINO A.; ZANATTA, LUCAS D.; ESPIMPOLO, DANIELA M.; DA SILVA, DOUGLAS L.; NASCIMENTO, LEANDRO F.; ZANARDI, FABRICIO B.; DE SOUSA FILHO, PAULO C.; SERRA, OSVALDO A.; IAMAMOTO, YASSUKO. Magnetic diatomite(Kieselguhr)/Fe2O3/TiO2 composite as an efficient photo-Fenton system for dye degradation. SOLID STATE SCIENCES, v. 72, p. 14-20, . (13/01669-1)
NASCIMENTO, L. F.; MARTINS, R. F.; SILVA, R. F.; DE SOUSA FILHO, P. C.; SERRA, O. A.. Ru-doped ceria-zirconia mixed oxides catalyze soot combustion. Reaction Kinetics Mechanisms and Catalysis, v. 111, n. 1, p. 149-165, . (13/01669-1)
SOARES, JULIA C.; SIQUEIRA, KISLA P. F.; DE SOUSA FILHO, PAULO C.; MOREIRA, ROBERTO L.; DIAS, ANDERSON. Thermal, vibrational and optical properties of PrLuO3 interlanthanides from hydrothermally-derived precursors. DALTON TRANSACTIONS, v. 46, n. 3, p. 825-835, . (13/01669-1)
DE SOUSA FILHO, PAULO C.; LARQUET, ERIC; DRAGOE, DIANA; SERRA, OSVALDO A.; GACOIN, THIERRY. Lanthanoid-Doped Phosphate/Vanadate Mixed Hollow Particles as Ratiometric Luminescent Sensors. ACS APPLIED MATERIALS & INTERFACES, v. 9, n. 2, p. 1635-1644, . (13/01669-1, 14/22930-2)
ZANARDI, FABRICIO B.; BARBOSA, ISALTINO A.; DE SOUSA FILHO, PAULO C.; ZANATTA, LUCAS D.; DA SILVA, DOUGLAS L.; SERRA, OSVALDO A.; IAMAMOTO, YASSUKO. Manganese porphyrin functionalized on Fe3O4@nSiO(2)@MCM-41 magnetic composite: Structural characterization and catalytic activity as cytochrome P450 model. Microporous and Mesoporous Materials, v. 219, p. 161-171, . (13/01669-1, 13/08439-1)

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