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dc.contributor.author
Porosnicu, Ioana
dc.contributor.author
Colbea, Claudiu
dc.contributor.author
Baiasu, Flaviu
dc.contributor.author
Lungu, Mihail
dc.contributor.author
Istrate, Marian Cosmin
dc.contributor.author
Avram, Daniel
dc.contributor.author
Tiseanu, Carmen
dc.date.accessioned
2020-08-10T12:51:10Z
dc.date.available
2020-07-30T07:12:06Z
dc.date.available
2020-08-10T12:51:10Z
dc.date.issued
2020-07
dc.identifier.issn
2050-6120
dc.identifier.other
10.1088/2050-6120/ab8c20
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/429143
dc.description.abstract
In recent years, luminescence nanothermometers with near infrared light (NIR) emission excited in the NIR range have attracted much attention due to their potential in bio applications. Here, we propose a new nanothermometer based on triple doped 1%Ho, 1%Er, 1%Yb - Y2O3 that operates in the second and third biological windows around 1200 and 1530 nm under pulsed excitation at 905 nm. The NIR emissions were analysed in the temperature range of 298-473 K in terms of intensity, shape and dynamics. The nanothermometer performances were described using the luminescent intensity ratio (LIR) corresponding to the 5I6-5I8 and 4I13/2-4I15/2 emissions transitions of Ho and Er, respectively. A maximum relative sensitivity of 1.5% K-1 was achieved at 309 K, which is among the highest five values reported so far for the NIR to NIR downconversion nanothermometers. The thermometer performance for biological application was assessed in terms of nanothermometer reliability and stability as well as emission shape changes induced by water and custom designed optical phantoms. Combination between use of pulsed excitation and identification of Ln doping configuration offering both excitation and emission in the biological windows represent a solid approach that can be easily translated to other hosts to develop a new class of near infrared nanothermometers. © 2020 IOP Publishing Ltd.
en_US
dc.language.iso
en
en_US
dc.publisher
Institute of Physics
en_US
dc.subject
Near infrared nanothermometer
en_US
dc.subject
Downconversion
en_US
dc.subject
Pulsed excitation
en_US
dc.subject
Ho
en_US
dc.subject
Er
en_US
dc.subject
Yb - Y2O3
en_US
dc.subject
Energy transfer
en_US
dc.title
A sensitive near infrared to near-infrared luminescence nanothermometer based on triple doped Ln -Y2O3
en_US
dc.type
Journal Article
dc.date.published
2020-05-04
ethz.journal.title
Methods and Applications in Fluorescence
ethz.journal.volume
8
en_US
ethz.journal.issue
3
en_US
ethz.pages.start
035005
en_US
ethz.size
13 p.
en_US
ethz.identifier.wos
ethz.identifier.scopus
ethz.publication.place
Bristol
en_US
ethz.publication.status
published
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00003 - Schulleitung und Dienste::00022 - Bereich VP Forschung / Domain VP Research::02891 - ScopeM / ScopeM
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00003 - Schulleitung und Dienste::00022 - Bereich VP Forschung / Domain VP Research::02891 - ScopeM / ScopeM
ethz.date.deposited
2020-07-30T07:12:10Z
ethz.source
WOS
ethz.eth
yes
en_US
ethz.availability
Metadata only
en_US
ethz.rosetta.installDate
2020-08-10T12:51:32Z
ethz.rosetta.lastUpdated
2022-03-29T02:53:57Z
ethz.rosetta.versionExported
true
ethz.COinS
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