Back to Search
Start Over
Hg2+ detection, pH sensing and cell imaging based on bright blue-fluorescent N-doped carbon dots.
- Source :
- Analyst; 12/14/2020, Vol. 145 Issue 24, p8030-8037, 8p
- Publication Year :
- 2020
-
Abstract
- A multifunctional sensing platform based on bright blue-fluorescent nitrogen-doped carbon dots (N-CDs) has been ingeniously designed for the sensitive determination of Hg<superscript>2+</superscript> and pH. The N-CDs were facilely fabricated via a one-step hydrothermal treatment of citric acid and folic acid with admirable merits including exceptional stability, low toxicity and distinguished biocompatibility. Intriguingly, the obtained N-CDs can be utilized to detect Hg<superscript>2+</superscript> on the basis of the dynamic quenching effect, showing a linear range of 0 μM–400 μM as well as a detection limit of 0.124 μM. In addition, the obtained N-CDs revealed a significant emission enhancement with increasing pH from 4.0 to 10.0 and acquired a good linearity in the pH range of 6.8–7.8. Taking advantage of efficient analysis of Hg<superscript>2+</superscript> and pH in aqueous solution, the as-synthesized N-CDs have been extended to the visualization biosensing platform to timely track Hg<superscript>2+</superscript> and pH in living cells. [ABSTRACT FROM AUTHOR]
- Subjects :
- CELL imaging
FOLIC acid
MERCURY
CITRIC acid
DETECTION limit
CARBON
AQUEOUS solutions
Subjects
Details
- Language :
- English
- ISSN :
- 00032654
- Volume :
- 145
- Issue :
- 24
- Database :
- Complementary Index
- Journal :
- Analyst
- Publication Type :
- Academic Journal
- Accession number :
- 147966205
- Full Text :
- https://doi.org/10.1039/d0an01487g