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Nanomaterials and luminescent systems based on rare earth ions

Grant number: 16/11670-5
Support type:Regular Research Grants
Duration: August 01, 2016 - July 31, 2018
Field of knowledge:Physical Sciences and Mathematics - Chemistry
Principal Investigator:José Maurício Almeida Caiut
Grantee:José Maurício Almeida Caiut
Home Institution: Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto (FFCLRP). Universidade de São Paulo (USP). Ribeirão Preto , SP, Brazil


The proposal addresses an important challenge in the research & development field of luminescent materials doped with rare earth ions, aiming to achieve new technologically advanced and strategic products. The Nanomaterials and Luminecence Systems Group (NanoLum) at the Department of Chemistry of FFCLRP-USP has developed new nanostructured materials for cell labeling, biofilms characterization, drug delivery process, as well as new phosphors. However, important hurdles still need to be overcome to produce more efficient systems. In this way, this wide project aims to obtain (1st) Nanostructured Luminescent systems and (2nd) Randon Lasers exploring the luminescence properties of rare earth ions; which are the result of well-known intraconfigurational 4fn transitions, in which the 4fn electrons are well shielded from its environment by the closed 5s2 and 5p6 shells, thus enabling emission processes by mechanisms as Downshifting, Upconversion e Downconversion. The new nanostructured phosphors will allow to develop nanoprobes for bio-molecular identification, scintillators, tissues cartography and devices for drug delivery. Luminescent composites will be prepared using silica capillaries or silk fibroin (from the cocoons of the Bombyx mori) and nanometric ceramic powders based on rare earth ions or other phosphors, to get systems with potential application in random Laser emission. The academic purposes are not excluded from this project, which there are three scientific master projects and two PhD projects associated at this research. (AU)

Scientific publications (7)
(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)
DE JESUS, FILIPE AUGUSTO; SANTANA, BARBARA VASCONCELOS; CUNHA BISPO, GIORDANO FREDERICO; SILVA FILHO, CICERO INACIO; ALVES JUNIOR, SEVERINO; GIROLDO VALERIO, MARIO ERNESTO; ALMEIDA CAIUT, JOSE MAURICIO; VITORINO SARMENTO, VICTOR HUGO. Fine tuning of polymer content for enhanced structure and luminescent properties of Eu3+:siloxane-poly(methyl methacrylate) hybrids to be applied in photonics. Polymer, v. 181, OCT 24 2019. Web of Science Citations: 0.
ALVES, CAROLINE C.; MENDONCA, CLEBER R.; DE BONI, LEONARDO; CAIUT, JOSE MAURICIO A. Regenerated cellulose as a porous silica composite template for random laser emission. JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS, v. 30, n. 18, SI, p. 16849-16855, SEP 2019. Web of Science Citations: 0.
GONCALVES, JOAO MARCOS; GUILLOT, PH.; CAIUT, J. M. A.; CAILLIER, B. Atmospheric plasma-assisted modification of nanosized LiYF4:Eu3+ with gold nanoparticles. JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS, v. 30, n. 18, SI, p. 16724-16731, SEP 2019. Web of Science Citations: 0.
PUGINA, ROBERTA S.; DA ROCHA, EUZANE G.; CAIUT, JOSE MAURICIO A. Beta-diketones in the intensification of the luminescence of the silk fibroin films doped rare earth ions. JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS, v. 30, n. 18, SI, p. 16732-16739, SEP 2019. Web of Science Citations: 0.
ALVES, CAROLINE CASSIA; LIMA RIBEIRO, SIDNEY JOSE; MENDONCA, CLEBER RENATO; DE BONI, LEONARDO; ALMEIDA CAIUT, JOSE MAURICIO. One axis guided random laser emission from a glass capillary composite. Journal of Luminescence, v. 211, p. 426-430, JUL 2019. Web of Science Citations: 0.
PUGINA, ROBERTA S.; DA ROCHA, EUZANE G.; RIBEIRO, SIDNEY J. L.; CAIUT, JOSE MAURICIO A. Study of the energy transfer process in rare earth-doped silk fibroin for future application in luminescent compounds. Journal of Luminescence, v. 205, p. 423-428, JAN 2019. Web of Science Citations: 2.
RIUL, ANDRE; JUSTINO, LARISSA G.; CAIUT, JOSE MAURCIO A. One-step synthesis of luminescent YVO4: Eu3+/gamma-Al2O3 nanocomposites by spray pyrolysis. Nanotechnology, v. 28, n. 23 JUN 9 2017. Web of Science Citations: 1.

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