Cashew gun resin doped with Eu(tta)3.(TPPO)2 and Eu(dbm)3.(TPPO) nanoparticle acting as biomaker
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2017
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INTERNATIONAL CONFERENCE ON LUMINESCENCE, 18th
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Anacardium occidentale L., a tree species from the Anacardiaceae family, is native in Brazil
growing mostly in the northeastern region. Cashew gum (CG) is one such versatile naturally
occurring biopolymer that is finding increasing applications in the pharmaceutical and
biotechnology industry. It has been used successfully for many years in the food and beverage
industry as a thickening agent and a colloidal stabilizer. Recently, the role of these gums in
enveloping controlled drug delivery systems has increased significantly and CG has achieve
lot of attraction towards this application [1].
In this work, nanoparticles of Eu(tta)3(TPPO)2 and Eu(dbm)3(TPPO) were tryed to
solubilize in the CG water solution improving the dispersion of the nanoparticle complexes,
and giving the opportunity to use these materials as biomarker. An 1%(w/w) of the
Eu(tta)3(TPPO)2 or Eu(dbm)3(TPPO) nanoparticles were dispersed in a water solution of CG
resin. After that, these materials were dried and the products obtained were films. These
materials were characterized by infrared spectroscopy, XPD, TGA, SEM, absorption and
photoluminescence spectroscopy. The results showed that the materials are crystalline and
when doped increase the thermal stability of the CG resin. These films were soluble in water
They also have intense luminescence, with emission spectra presenting characteristic internal
transitions of 4f6-4f6 configuration of the Eu3+ ion even in water solution (Fig. 1). The
addition of Ag0 in the solution improve the intensity of the fluorophore in solution. Intensity
parameters in solid phase were determined and the quantum efficiency ~57% corroborate
with the idea of use this green material as a biomarker[2].
Como referenciar
FELINTO, MARIA C.F.C.; SALVADOR, FRANCINE F.S.; BONTURIM, EVERTON; BRITO, HERMI F.; SANTOS, PAULO R.; TEOTONIO, ERCULES E.S.; FAUSTINO, WAGNER; MALTA, OSCAR M.L. Cashew gun resin doped with Eu(tta)3.(TPPO)2 and Eu(dbm)3.(TPPO) nanoparticle acting as biomaker. In: INTERNATIONAL CONFERENCE ON LUMINESCENCE, 18th, August 27 - September 01, 2017, João Pessoa, PB. Abstract... Disponível em: http://repositorio.ipen.br/handle/123456789/28689. Acesso em: 12 May 2024.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.