Citation: Xiang Yan, Junfei Ma, Kaixuan Yu, Jiapeng Li, Lei Yang, Jiaqi Liu, Juncheng Wang, Lulu Cai. Highly green fluorescent Nb₂C MXene quantum dots for Cu²⁺ ion sensing and cell imaging[J]. Chinese Chemical Letters, ;2020, 31(12): 3173-3177. doi: 10.1016/j.cclet.2020.05.020 shu

Highly green fluorescent Nb₂C MXene quantum dots for Cu²⁺ ion sensing and cell imaging

Xiang Yan ^a ,
Junfei Ma ^b ,
Kaixuan Yu ^b ,
Jiapeng Li ^b ,
Lei Yang ^c ,
Jiaqi Liu ^c ,
Juncheng Wang ^{d, *,} ,
Lulu Cai ^{c, *,}

a.
School of Materials Science and Engineering, Baise University, Baise 533000, China
b.
State Key Laboratory of Heavy Oil Processing, China University of Petroleum-Beijing, Beijing 102249, China
c.
Personalized Drug Therapy Key Laboratory of Sichuan Province, Department of Pharmacy, Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu 610072, China
d.
Stomatology Department of the General Hospital of Chinese PLA, Beijing 100853, China

wbhwjc527@126.com

lzxlulu@126.com

Received Date: 27 February 2020
Revised Date: 11 May 2020
Accepted Date: 15 May 2020
Available Online: 24 May 2020

Figures(6)

Niobium carbide MXene quantum dots (Nb₂C MQDs) derived from 2D Nb₂CT_x (MXene) are the rising-star material recently. Herein, a sulfur and nitrogen co-doped Nb₂C MQDs (S, N-MQDs) were synthesized through a hydrothermal method. The obtained Nb₂C MQDs have excellent green fluorescence with a quantum yield (QY) of 17.25%. In addition, they exhibited excitation-dependent photoluminescence, anti-photobleaching and dispersion stability. They emit light at 520 nm when excited at 390 nm. The Nb₂C MQDs could be successfully applied to copper ion detection with detection limit of 2 μmol/L and Caco-2 cells imaging.
- 2D-QDs,
- Nb₂C-Mxene,
- Cell imaging,
- Ion sensing,
- Sulfur-nitrogen co-doping
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通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Highly green fluorescent Nb2C MXene quantum dots for Cu2+ ion sensing and cell imaging

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通讯作者: 陈斌, bchen63@163.com

Highly green fluorescent Nb₂C MXene quantum dots for Cu²⁺ ion sensing and cell imaging