Details

Autor(en) / Beteiligte

• Yan, Fanyong
• Kong, Depeng
• Luo, Yunmei
• Ye, Qianghua
• He, Juanjuan
• Guo, Xingfei
• Chen, Li

Titel

Carbon dots serve as an effective probe for the quantitative determination and for intracellular imaging of mercury(II)

Ist Teil von

• Mikrochimica acta (1966), 2016-05, Vol.183 (5), p.1611-1618

Ort / Verlag

Vienna: Springer Vienna

Erscheinungsjahr

2016

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• We describe a new method for synthesis of water-soluble photoluminescent carbon dots (CDs) by one-pot hydrothermal treatment of adipic acid and triammonium citrate. The CDs have excitation/emission maxima of 340/440 nm, a quantum yield of 0.13, and are shown to be a viable fluorescent probe for the determination of Hg(II). It shows a linear relationship in the 4 to 18 μM mercury ion concentration range. The detection limit is as low as 2.47 μM. The CDs were applied to intracellular sensing and imaging of Hg(II) where they showed low toxicity. Graphical Abstract Carbon dots synthesized by hydrothermal method can be used as “turn-off” fluorescent probe Hg 2+ determination. Besides, the carbon dots were applied to intracellular sensing and imaging of Hg 2+ .