Potential applications for the use of rare earth complexes and nanoparticles as luminescent biolabels
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2010
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RARE EARTH CONFERENCE 2010
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The ever growing interest in rare earth coordination compounds and materials wilh
optical properties stems from applications in multidisciplinar fields such as
nanosensors, materials for telecommunications. lighting devices, and luminescent
probes for bioanalyses and live cell imaging and sensing. Most of these applications use
the unique ability of lhe rare earth ions to emit well-defined narrow bands in different
spectral ranges, from visible to near-infrared. Due to the low absorption cross-section of
the f.f transitions, efficient population of lhe excited 4f states has to rely on energy
transfer from the surroundings of Ihe metal ion (antena effect or luminescence
sensitization). Another point desirable is the use of RE3+ ions wilh emission in the near-infrared (NIR) region reducing !he interference from biological materials in the
analyses.
In this work. we report the preparation and characterization of rare earth coordination
compounds and nanoparticles based on rare earth ions. RE3+ beta-diketonate complexes
with macrocyclic ligand has been synthesized and characterized and are being used to
mark hemoglobin S (sickle cells) Leishmania (tropical disease) and PSA (Prostate-specific
antigen that is a protein produced by cells of the prostate gland. The PSA test
measures the level of PSA in the blood). Several nanoparticles based on Nd3+, Eu3+ and
Tb3+ ions doped into the Y2O3 matrix. are also being synthesized and evaluated for
labeling anti-oxLDL (anti-oxidized low density lipoproteins), one of the principal
causes of cardiovascular diseases and responsible for around 30% of deaths world-wide.
information about struture and average grain size of these nanoparticles were obtained
by x-ray diffration (XRDJ, transmission electron micrograph (TEM) and infrared
absorption spectroscopy.
Como referenciar
FELINTO, M.C.F.C.; KODAIRA, C.A.; PAGANINI, P.P.; SANTOS, E.G.; LOURENCO, A.V.S.; BRITO, H.F.; NUNES, L.A.O.; MALTA, O.L.; SANCHES, E.; GIDLUND, M.; GOTO, H.; BRITO, M.E.F. Potential applications for the use of rare earth complexes and nanoparticles as luminescent biolabels. In: RARE EARTH CONFERENCE 2010, 2010. Resumos... p. 22. Disponível em: http://repositorio.ipen.br/handle/123456789/21274. Acesso em: 13 Feb 2025.
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.