Thermometry at the nanoscale
authors Brites, CDS; Lima, PP; Silva, NJO; Millan, A; Amaral, VS; Palacio, F; Carlos, LD
nationality International
journal NANOSCALE
keywords SCANNING THERMAL MICROSCOPY; ATOMIC-FORCE MICROSCOPY; SINGLE LIVING CELLS; FLUORESCENT POLYMERIC THERMOMETER; SYNTHETIC RNA THERMOMETERS; CONTROLLED GENE-EXPRESSION; TEMPERATURE SENSOR FILMS; QUANTUM DOTS; CARBON NANOTUBES; INTRACELLULAR TEMPERATURE
abstract Non-invasive precise thermometers working at the nanoscale with high spatial resolution, where the conventional methods are ineffective, have emerged over the last couple of years as a very active field of research. This has been strongly stimulated by the numerous challenging requests arising from nanotechnology and biomedicine. This critical review offers a general overview of recent examples of luminescent and non-luminescent thermometers working at nanometric scale. Luminescent thermometers encompass organic dyes, QDs and Ln(3+) ions as thermal probes, as well as more complex thermometric systems formed by polymer and organic-inorganic hybrid matrices encapsulating these emitting centres. Non-luminescent thermometers comprise of scanning thermal microscopy, nanolithography thermometry, carbon nanotube thermometry and biomaterials thermometry. Emphasis has been put on ratiometric examples reporting spatial resolution lower than 1 micron, as, for instance, intracellular thermometers based on organic dyes, thermoresponsive polymers, mesoporous silica NPs, QDs, and Ln(3+)-based up-converting NPs and beta-diketonate complexes. Finally, we discuss the challenges and opportunities in the development for highly sensitive ratiometric thermometers operating at the physiological temperature range with submicron spatial resolution.
publisher ROYAL SOC CHEMISTRY
issn 2040-3364
year published 2012
volume 4
issue 16
beginning page 4799
ending page 4829
digital object identifier (doi) 10.1039/c2nr30663h
web of science category Chemistry, Multidisciplinary; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied
subject category Chemistry; Science & Technology - Other Topics; Materials Science; Physics
unique article identifier WOS:000306855500001

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