AI Article Synopsis
- Green-fluorescent N-doped carbon dots (N-CDs) were created using a hydrothermal process involving tyrosine and urea, exhibiting high stability and impressive quantum yield of 9.8%.
- These N-CDs can detect cobalt (Co) concentrations in a linear range from 0.1 μM to 400 μM, with a low detection limit of 0.15 μM, and can visualize Co changes in living cells.
- Additionally, the N-CDs serve as effective temperature sensors operating within a temperature range of 25-80 °C.
Article Abstract
Green-fluorescent N-doped carbon dots (N-CDs) have been successfully fabricated using hydrothermal treatment of tyrosine and urea. The N-CDs obtained showed excitation-independent emission, superior stability and strong photoluminescence with a quantum yield of . 9.8%. Based on these striking behaviors, the as-prepared N-CDs have been utilized in Co detection and temperature sensing. Due to an inner filter effect, the N-CDs obtained were dramatically quenched by Co with linear ranges of 0.1 μM-10 μM, 25 μM-275 μM and 300 μM-400 μM, and they had a detection limit of 0.15 μM. The use of the as-prepared N-CDs has been extended to visualize Co fluctuations in living cells. Additionally, the N-CDs obtained have also been applied for use as a temperature sensor with a linear range of 25-80 °C.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9076455 | PMC |
| http://dx.doi.org/10.1039/c9ra09405a | DOI Listing |
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