Luminescent carbon quantum dots and their application in cell imaging

被引：176

作者：

Ding, Hui ^{[1
,2
]}

Cheng, Li-Wei ^{[1
,3
]}

Ma, Ying-Ying ^{[1
,2
]}

Kong, Ji-Lie ^{[1
,3
]}

Xiong, Huan-Ming ^{[1
,2
]}

机构：

[1] Fudan Univ, Dept Chem, Shanghai 200433, Peoples R China

[2] Fudan Univ, Shanghai Key Lab Mol Catalysis & Innovat Mat, Shanghai 200433, Peoples R China

[3] Fudan Univ, Inst Biomed Sci, Shanghai 200433, Peoples R China

来源：

NEW JOURNAL OF CHEMISTRY | 2013年 / 37卷 / 08期

基金：

中国国家自然科学基金;

关键词：

IN-VIVO; GRAPHENE; NANOCRYSTALS; NANODOTS; PHOTOLUMINESCENCE; NANOPARTICLES; CYTOTOXICITY; GRAPHITE;

D O I：

10.1039/c3nj00366c

中图分类号：

O6 [化学];

学科分类号：

070301 [无机化学];

摘要：

A facile hydrothermal method was used to synthesize luminescent carbon dots from single-walled carbon nanotubes (SWNTs). Then 4,7,10-trioxa-1,13-tridecanediamine (TTDDA) was grafted onto the carbon dots to increase their water solubility and luminescent properties. The as-prepared carbon dots were characterized by UV-Vis absorption, infrared (IR), Raman, fluorescence, and transmission electron microscopy (TEM). The results confirmed that these carbon dots were monodispersed in water and emitted bright yellow fluorescence. The surface modified carbon dots were used to label biological cells, and the images obtained by a laser scanning confocal microscope showed that the carbon dots were gradually taken up by HeLa cells. The cytotoxicity of such carbon dots toward HeLa cells was very low, for 24 h the LC50 was over 5 mg mL(-1).

引用

页码：2515 / 2520

页数：6

共 45 条

[1]

Luminescent Carbon Nanodots: Emergent Nanolights [J].