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Keywords:

  • fluorescence;
  • gold nanoclusters;
  • imaging;
  • sensors;
  • temperature
Thumbnail image of graphical abstract

The “gold standard” for nanothermometry: The application of ultrasmall, near-IR-emitting fluorescent gold nanoclusters (AuNCs) for temperature sensing has been explored. AuNC-based fluorescent nanothermometry features excellent thermal sensitivity and simultaneous temperature sensing and imaging in HeLa cells.