Se & N co-doped carbon dots for high-performance fluorescence imaging agent of angiography
文献类型：期刊论文
| 作者 | Qu, D.; X. Miao; X. T. Wang; C. Nie; Y. X. Li; L. Luo and Z. C. Sun |
| 刊名 | Journal of Materials Chemistry B
 |
| 出版日期 | 2017 |
| 卷号 | 5期号:25 |
| 英文摘要 | Both long wavelength excitation and emission are highly desired for fluorescent carbon dots in biorelated applications. According to semiconductor theory, heteroatom doping is an effective way to tune the band gap of a semiconductor. In this work, we developed an exceedingly simple and mild one-pot method to synthesize selenium and nitrogen co-doped carbon dots (Se&N-CDs) by using low cost citric acid, ethane diamine and selenium powder as the starting materials. After doping the Se element into N-CDs, the absorption of Se&N-CDs was expanded from UV to the visible light region (similar to 497 nm). More important is that the Se&N-CDs show a strong green light emission with a high quantum yield of B52%, attributed to the new Se-state introduced in the Se&N-CDs due to the low electronegativity of Se. Furthermore, we successfully demonstrate that Se&N-CDs have an excellent performance as a dye for fluorescein fundus angiography (FFA). After injection, a clear vascular image in the retina and detailed images of the capillary bed were exhibited in the FFA image. This will provide a great advantage for bio-imaging and diagnosis. |
| 语种 | 英语 |
| 源URL | [http://ir.ciomp.ac.cn/handle/181722/59166]  |
| 专题 | 长春光学精密机械与物理研究所_中科院长春光机所知识产出 |
| 推荐引用方式 GB/T 7714 | Qu, D.,X. Miao,X. T. Wang,et al. Se & N co-doped carbon dots for high-performance fluorescence imaging agent of angiography[J]. Journal of Materials Chemistry B,2017,5(25). |
| APA | Qu, D.,X. Miao,X. T. Wang,C. Nie,Y. X. Li,&L. Luo and Z. C. Sun.(2017).Se & N co-doped carbon dots for high-performance fluorescence imaging agent of angiography.Journal of Materials Chemistry B,5(25). |
| MLA | Qu, D.,et al."Se & N co-doped carbon dots for high-performance fluorescence imaging agent of angiography".Journal of Materials Chemistry B 5.25(2017). |
入库方式： OAI收割
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。