[Ga83+Sm23+, Ga83+Tb23+] Metallacrowns are Highly Promising Ratiometric Luminescent Molecular Nanothermometers Operating at Physiologically Relevant Temperatures
authors Salerno, EV; Zeler, J; Eliseeva, SV; Hernandez-Rodriguez, MA; Neto, ANC; Petoud, S; Pecoraro, VL; Carlos, LD
nationality International
journal CHEMISTRY-A EUROPEAN JOURNAL
author keywords lanthanides; luminescence; metallacrowns; nanoparticles; nanothermometry
keywords ORGANIC FRAMEWORK THERMOMETER; TB3+-DOPED KPB2BR5; ENERGY; COMPLEXES; CLUSTERS
abstract Nanothermometry is the study of temperature at the submicron scale with a broad range of potential applications, such as cellular studies or electronics. Molecular luminescent-based nanothermometers offer a non-contact means to record these temperatures with high spatial resolution and thermal sensitivity. A luminescent-based molecular thermometer comprised of visible-emitting Ga3+/Tb(3+)and Ga3+/Sm(3+)metallacrowns (MCs) achieved remarkable relative thermal sensitivity associated with very low temperature uncertainty ofS(r)=1.9 % K(-1)and delta T<0.045 K, respectively, at 328 K, as an aqueous suspension of polystyrene nanobeads loaded with the corresponding MCs. To date, they are the ratiometric molecular nanothermometers offering the highest level of sensitivity in the physiologically relevant temperature range.
publisher WILEY-V C H VERLAG GMBH
issn 0947-6539
isbn 1521-3765
year published 2020
volume 26
issue 61
beginning page 13792
ending page 13796
digital object identifier (doi) 10.1002/chem.202003239
web of science category Chemistry, Multidisciplinary
subject category Chemistry
unique article identifier WOS:000573385600001
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