Surface state-controlled C-dot/C-dot based dual-emission fluorescent nanothermometers for intra-cellular thermometry

Fluorescence-based nanothermometers have potential to offer accuracy in the measurement of temperature using non-contact approaches

Chan Wang; Tantan Hu; Tiju Thomas; Shanliang Song; Zhuoqi Wen; Chuanxi Wang; Qijun Song; Minghui Yang

2018

Scholarcy highlights

  • Fluorescence-based nanothermometers have potential to offer accuracy in the measurement of temperature using non-contact approaches
  • A C-dot/C-dot based dual-emission temperature sensing platform is fabricated through the electrostatic self-assembly of two kinds of fluorescent CDs with opposite charges. This dual-emission platform consists of several nearly-spherical CDs with two emission centers in blue and orange regions
  • A continuous fluorescence color change in response to temperature from orange to blue can be clearly observed by the naked eye
  • The as-prepared C-dot based dual-emission nanospheres can be used for optical thermometry with high reproducibility and sensitivity
  • By taking advantage of the excellent biocompatibility and stability, the CD based fluorescent nanothermometer is successfully used for the visual measurement of intracellular temperature variations

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