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- Title
Stable Fluorescence of Green-Emitting Carbon Nanodots as a Potential Nanothermometer in Biological Media.
- Authors
Jiang, Kaili; Wu, Jiapeng; Wu, Qian; Wang, Xiaojie; Wang, Chuanxi; Li, Yunxing
- Abstract
Temperature measurement in biology and medical diagnostics is of great importance. Herein, a novel carbon nanodot (CND) based fluorescent nanothermometry device for spatially resolved temperature measurements is demonstrated. The fluorescence CNDs are prepared by a simple one-pot solvothermal method using sucrose as carbon source. Resultant CNDs show stable green fluorescence at 520 nm with high quantum yield (≈6%). The fluorescence of resultant CNDs exhibits a reversible linear response to temperature in a wide range of 20-85 °C. Moreover, the temperature resolution better than 0.5 °C and high sensitive variation of ≈1.3% °C−1 are observed in a broad physiological temperature range of 20-40 °C. Therefore, the as-prepared CNDs possess high water solubility, stable fluorescence, small size, and good biocompatibility, which make them promising candidate for thermometry and cell imaging in biological media.
- Subjects
CARBON composites; NANOSTRUCTURED materials; FLUORESCENCE yield; MEDICAL thermometry; SUCROSE; TEMPERATURE measurements; EQUIPMENT &; supplies
- Publication
Particle & Particle Systems Characterization, 2017, Vol 34, Issue 2, pn/a
- ISSN
0934-0866
- Publication type
Article
- DOI
10.1002/ppsc.201600197