Walking nanothermometers: spatiotemporal temperature measurement of transported acidic organelles in single living cells.

Oyama, Kotaro; Takabayashi, Masao; Takei, Yoshiaki; Arai, Satoshi; Takeoka, Shinji; Ishiwata, Shin'ichi; Suzuki, Madoka · Lab Chip · 2012

basic_science · Level V

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Abstract

We fabricated fluorescent nanoparticles which monitor temperature changes without sensitivity to pH (4-10) and ionic strength (0-500 mM). The nanothermometers spontaneously enter living HeLa cells via endocytosis, enclosed in acidic organelles, i.e., endosome/lysosome, and then transported along microtubules in a temperature-dependent manner, working as "walking nanothermometers".

Medical subject headings