title: Photophysical properties and biocompatibility of Photoluminescent Y2O3:Eu nanoparticles in polymethylmetacrylate matrix.
abstract: In this study, we produced europium-doped yttoria (Y2O3:Eu) nanoparticles and investigated their photoluminescent properties and biocompatibility. The Y2O3:Eu nanoparticles showed excellent photoluminescent properties and cytocompatibility. We also analyzed the photophysical properties of the nanoparticles in PMMA films. When the Y2O3:Eu nanoparticles were incorporated in the polymer film, they showed a strong red emission spectrum, similar to that seen with the particles alone. Energy dispersive X-ray spectroscopy (EDS) measurements indicated that the particles were distributed homogeneously in the PMMA film. Such materials could be applied not only to optoelectronic devices but also to biomedical applications such as bioimaging tools or luminescent medical/dental adhesive materials.
authors.forename: Shigeaki
authors.initials: S
authors.lastname: Abe
authors.forename: Yusuke
authors.initials: Y
authors.lastname: Hamba
authors.forename: Nobuki
authors.initials: N
authors.lastname: Iwadera
authors.forename: Shuichi
authors.initials: S
authors.lastname: Yamagata
authors.forename: Yasutaka
authors.initials: Y
authors.lastname: Yawaka
authors.forename: Motohiro
authors.initials: M
authors.lastname: Uo
authors.forename: Junichiro
authors.initials: J
authors.lastname: Iida
authors.forename: Takayuki
authors.initials: T
authors.lastname: Kiba
authors.forename: Akihiro
authors.initials: A
authors.lastname: Murayama
authors.forename: Fumio
authors.initials: F
authors.lastname: Watari