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Preliminary study on singlet oxygen production using CeF.sub.3./sub.:Tb.sup.3+./sup.@SiO.sub.2./sub.-PpIX.

  1. 1.
    SYSNO ASEP0470068
    Document TypeJ - Journal Article
    R&D Document TypeJournal Article
    Subsidiary JČlánek ve WOS
    TitlePreliminary study on singlet oxygen production using CeF3:Tb3+@SiO2-PpIX.
    Author(s) Popovich, K. (CZ)
    Procházková, L. (CZ)
    Pelikánová, I.T. (CZ)
    Vlk, M. (CZ)
    Palkovský, M. (CZ)
    Jarý, Vítězslav (FZU-D) RID, ORCID
    Nikl, Martin (FZU-D) RID, ORCID, SAI
    Múčka, V. (CZ)
    Mihóková, Eva (FZU-D) RID, ORCID, SAI
    Čuba, V. (CZ)
    Source TitleRadiation Measurements. - : Elsevier - ISSN 1350-4487
    Roč. 90, Jul (2016), s. 325-328
    Number of pages4 s.
    ActionInternational Conference on Luminescent Detectors and Transformers of Ionizing Radiation (LUMDETR)
    Event date20.09.2015 - 25.09.2015
    VEvent locationTartu (Estonsko)
    CountryEE - Estonia
    Event typeWRD
    Languageeng - English
    CountryGB - United Kingdom
    Keywordssinglet oxygen ; cerium fluoride ; photodynamic therapy ; biofunctionalization ; scintillator
    Subject RIVBM - Solid Matter Physics ; Magnetism
    R&D ProjectsGA13-09876S GA ČR - Czech Science Foundation (CSF)
    GA13-28721S GA ČR - Czech Science Foundation (CSF)
    Institutional supportFZU-D - RVO:68378271
    UT WOS000378470500071
    EID SCOPUS84957086872
    DOI https://doi.org/10.1016/j.radmeas.2016.01.033
    AnnotationLuminescent properties and singlet oxygen production using with SiO2 and protoporphyrin IX (PpIX) were studied. CeF3:Tb3þ nanopowder was prepared via sol-gel route, with subsequent surface coating by SiO2 layer and the conjugation with photosensitive PpIX molecules. Radioluminescence spectra suggest an energy transfer from Ce3+ to Tb3+ ions and from Tb3+ to molecules of PpIX photosensitizer. The energy transfer was confirmed by photoluminescence decay curves. Singlet oxygen production was detected using a reaction of 1O2 with 3’-(p-aminophenyl) fluorescein (APF) chemical probe after X-Ray excitation.Qualitative changes in time resolved photoluminescence spectra in the region of 520 nm indicate 1O2 generation. Studied nanocomposites may be good candidates for the application in X-ray induced photodynamic therapy.
    WorkplaceInstitute of Physics
    ContactKristina Potocká, potocka@fzu.cz, Tel.: 220 318 579
    Year of Publishing2017
Number of the records: 1  

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