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

Popovich, K.; Procházková, L.; Pelikánová, I.T.; Vlk, M.; Palkovský, M.; Jarý, Vítězslav; Nikl, Martin; Múčka, V.; Mihóková, Eva; Čuba, V.

doi:https://dx.doi.org/10.1016/j.radmeas.2016.01.033

Number of the records: 1

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

1.

SYSNO ASEP	0470068
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Preliminary 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 Title	Radiation Measurements. - : Elsevier - ISSN 1350-4487 Roč. 90, Jul (2016), s. 325-328
Number of pages	4 s.
Action	International Conference on Luminescent Detectors and Transformers of Ionizing Radiation (LUMDETR)
Event date	20.09.2015 - 25.09.2015
VEvent location	Tartu (Estonsko)
Country	EE - Estonia
Event type	WRD
Language	eng - English
Country	GB - United Kingdom
Keywords	singlet oxygen ; cerium fluoride ; photodynamic therapy ; biofunctionalization ; scintillator
Subject RIV	BM - Solid Matter Physics ; Magnetism
R&D Projects	GA13-09876S GA ČR - Czech Science Foundation (CSF)
	GA13-28721S GA ČR - Czech Science Foundation (CSF)
Institutional support	FZU-D - RVO:68378271
UT WOS	000378470500071
EID SCOPUS	84957086872
DOI	https://doi.org/10.1016/j.radmeas.2016.01.033
Annotation	Luminescent 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.
Workplace	Institute of Physics
Contact	Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579
Year of Publishing	2017

Number of the records: 1