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http://hdl.handle.net/10773/20010
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DC Field | Value | Language |
---|---|---|
dc.contributor.author | Balabhadra, Sangeetha | pt |
dc.contributor.author | Debasu, Mengistie L. | pt |
dc.contributor.author | Brites, Carlos D. S. | pt |
dc.contributor.author | Nunes, Luis A. O. | pt |
dc.contributor.author | Malta, Oscar L. | pt |
dc.contributor.author | Rocha, Joao | pt |
dc.contributor.author | Bettinelli, Marco | pt |
dc.contributor.author | Carlos, Luis D. | pt |
dc.date.accessioned | 2017-12-07T19:32:25Z | - |
dc.date.issued | 2015 | pt |
dc.identifier.issn | 2040-3364 | pt |
dc.identifier.uri | http://hdl.handle.net/10773/20010 | - |
dc.description.abstract | Luminescence thermal sensing and deep-tissue imaging using nanomaterials operating within the first biological window (ca. 700-980 nm) are of great interest, prompted by the ever-growing demands in the fields of nanotechnology and nanomedicine. Here, we show that (Gd1-xNdx)(2)O-3 (x = 0.009, 0.024 and 0.049) nanorods exhibit one of the highest thermal sensitivity and temperature uncertainty reported so far (1.75 +/- 0.04% K-1 and 0.14 +/- 0.05 K, respectively) for a nanothermometer operating in the first transparent near infrared window at temperatures in the physiological range. This sensitivity value is achieved using a common R928 photomultiplier tube that allows defining the thermometric parameter as the integrated intensity ratio between the F-4(5/2) -> I-4(9/2) and F-4(3/2) -> I-4(9/2) transitions (with an energy difference between the barycentres of the two transitions > 1000 cm(-1)). Moreover, the measured sensitivity is one order of magnitude higher than the values reported so far for Nd3+-based nanothermometers enlarging, therefore, the potential of using Nd3+ ions in luminescence thermal sensing and deep-tissue imaging. | pt |
dc.language.iso | eng | pt |
dc.publisher | ROYAL SOC CHEMISTRY | pt |
dc.relation | info:eu-repo/grantAgreement/FCT/5876/147332/PT | pt |
dc.relation | info:eu-repo/grantAgreement/EC/FP7/316906/EU | pt |
dc.relation | info:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBPD%2F89003%2F2012/PT | pt |
dc.relation | info:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBPD%2F93884%2F2013/PT | pt |
dc.rights | restrictedAccess | por |
dc.subject | OPTICAL-TEMPERATURE SENSORS | pt |
dc.subject | NANOSCALE | pt |
dc.subject | NANOPARTICLES | pt |
dc.subject | THERMOMETRY | pt |
dc.subject | EMISSION | pt |
dc.subject | FLUORESCENCE | pt |
dc.subject | ND3+ | pt |
dc.subject | NANORODS | pt |
dc.subject | RANGE | pt |
dc.title | Boosting the sensitivity of Nd3+-based luminescent nanothermometers | pt |
dc.type | article | pt |
dc.peerreviewed | yes | pt |
ua.distribution | international | pt |
degois.publication.firstPage | 17261 | pt |
degois.publication.issue | 41 | pt |
degois.publication.lastPage | 17267 | pt |
degois.publication.title | NANOSCALE | pt |
degois.publication.volume | 7 | pt |
dc.date.embargo | 10000-01-01 | - |
dc.relation.publisherversion | 10.1039/c5nr05631d | pt |
dc.identifier.doi | 10.1039/c5nr05631d | pt |
Appears in Collections: | CICECO - Artigos |
Files in This Item:
File | Description | Size | Format | |
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Boosting the sensitivity of Nd3+-based luminescent nanothermometers_10.1039c5nr05631d.pdf | 1.21 MB | Adobe PDF |
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