Preparation of blue- and green-emissive nitrogen-doped graphene quantum dots from graphite and their application in bioimaging
文献类型：期刊论文
| 作者 | Xin, Qi; Shah, Hameed; Xie, Wenjing; Wang, Yuanyuan; Jia, Xinrui; Nawaz, Asmat; Song, Maoyong ; Gong, Jian Ru
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| 刊名 | MATERIALS SCIENCE & ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS
 |
| 出版日期 | 2021-02 |
| 卷号 | 119页码:- |
| 关键词 | N-doped GQDs Fluorescent nanoagent Bioimaging Nanobiomaterial |
| ISSN号 | 0928-4931 |
| 英文摘要 | Owing to the superior photoluminescence property, low toxicity and good biocompatibility, nitrogen-doped graphene quantum dots (NGQDs) have been regarded as promising nanomaterials for biological applications such as bioimaging. However, many of the preparation methods are complicated, high cost, eco-unfriendly, and with a low product yield. Here, we demonstrate a novel top-down approach for NGQDs preparation, in which the low cost graphite was used as a precursor, ammonium persulfate as an oxidative molecule and nitrogen source, and H2O2 as an oxidative agent, N-methyl-2-pyrrolidone as a solvent and potential functionalizer. Meanwhile, the solvent extraction was applied for the first time to purify NGQDs. The separated NGQDs display green and blue fluorescence, deriving from the difference sizes and nitrogen doped types. The total product yield of NGQDs calculated to be about 52%, containing 88% of green-emissive NGQDs and 12% of blue-emissive NGQDs. Meanwhile, our NGQDs own low cytotoxicity, and display a good bioimaging performance in the in vitro and in vivo investigation. The synthesis idea in our work might be also applicable to obtain other kinds of quantum dots from the readily obtainable bulk materials. |
| WOS研究方向 | Materials Science, Biomaterials |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/45895]  |
| 专题 | 生态环境研究中心_环境纳米材料实验室 |
| 作者单位 | 1.Univ CAS, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Ctr Excellence Nanosci, CAS Key Lab Nanosyst & Hierarch Fabricat, Natl Ctr Nanosci & Technol, 11 Beiyitiao Zhongguancun, Beijing 100190, Peoples R China 3.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, China Key Lab Environm Nanotechnol & Hlth Effects, Beijing 100085, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xin, Qi,Shah, Hameed,Xie, Wenjing,et al. Preparation of blue- and green-emissive nitrogen-doped graphene quantum dots from graphite and their application in bioimaging[J]. MATERIALS SCIENCE & ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS,2021,119:-. |
| APA | Xin, Qi.,Shah, Hameed.,Xie, Wenjing.,Wang, Yuanyuan.,Jia, Xinrui.,...&Gong, Jian Ru.(2021).Preparation of blue- and green-emissive nitrogen-doped graphene quantum dots from graphite and their application in bioimaging.MATERIALS SCIENCE & ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS,119,-. |
| MLA | Xin, Qi,et al."Preparation of blue- and green-emissive nitrogen-doped graphene quantum dots from graphite and their application in bioimaging".MATERIALS SCIENCE & ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS 119(2021):-. |
入库方式： OAI收割
来源：生态环境研究中心
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