Manganese(II) enhanced fluorescent nitrogen-doped graphene quantum dots: a facile and efficient synthesis and their applications for bioimaging and detection of Hg2+ ions

Yang Li; Qin Aimiao; Chen Shuoping; Liao Lei; Qin Jiangke; Zhang Kaiyou

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Manganese(II) enhanced fluorescent nitrogen-doped graphene quantum dots: a facile and efficient synthesis and their applications for bioimaging and detection of Hg2+ ions

机译：锰（ii）增强荧光氮掺杂石墨烯量子点：容易和有效的合成及其用于生物成像和检测HG2 +离子的应用

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Manganese ion (Mn2+) bonded nitrogen-doped graphene quantum dots (Mn(II)-NGQDs) with water solubility have been successfully synthesized by a simple, one-pot hydrothermal carbonization, using sodium citrate, glycine and manganese chloride as raw materials. The photoluminescence (PL) characteristics of Mn(II)-NGQDs were studied in detail. The resulting Mn(II)-NGQDs show a remarkably enhanced PL intensity and quantum yield (QY = 42.16%) compared with the product without Mn(II)doped (named as NG, QY = 27.06%) and the product doped with other metal ions. The Mn(II)-NGQDs not only display low toxicity and high cellular uptake efficiency for fluorescence live cell imaging in biological evaluations but also exhibit a fast, highly selective and sensitive fluorescence quenching effect toward Hg2+ ions, with a detection limit of 3.4 x 10(-8) mol L-1.

机译：使用柠檬酸钠，甘氨酸和氯化锰作为原料，已经成功地合成了使用水溶性的锰离子（Mn2 +）粘结的氮掺杂石墨烯量子点（Mn（II）-1NGQDS），其简单的单罐水热碳化是成功的。详细研究了Mn（II）-1NGQDS的光致发光（PL）特性。得到的Mn（II）-1NGQDS显示出显着增强的PL强度和量子产率（QY = 42.16％）与没有Mn（II）的产品相比（掺为Ng，QY = 27.06％）和掺杂有其他金属的产品离子。 Mn（ii）-1NGQDS不仅显示出生物评估中的荧光直播细胞成像的低毒性和高细胞摄取效率，而且对HG2 +离子表现出快速，高选择性和敏感的荧光猝灭作用，检测限为3.4×10 （-8）mol l-1。

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《RSC Advances》 |2018年第11期|共10页
作者
Yang Li; Qin Aimiao; Chen Shuoping; Liao Lei; Qin Jiangke; Zhang Kaiyou;
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作者单位

Guilin Univ Technol Coll Mat Sci &

Engn Guangxi Key Lab Univ Clean Met &

Comprehens Utili Key Lab New Proc Technol Nonferrous Met &

Mat Min Guilin Peoples R China;

Guilin Univ Technol Coll Mat Sci &

Engn Guangxi Key Lab Univ Clean Met &

Comprehens Utili Key Lab New Proc Technol Nonferrous Met &

Mat Min Guilin Peoples R China;

Guilin Univ Technol Coll Mat Sci &

Engn Guangxi Key Lab Univ Clean Met &

Comprehens Utili Key Lab New Proc Technol Nonferrous Met &

Mat Min Guilin Peoples R China;

Guilin Univ Technol Coll Mat Sci &

Engn Guangxi Key Lab Univ Clean Met &

Comprehens Utili Key Lab New Proc Technol Nonferrous Met &

Mat Min Guilin Peoples R China;

Guangxi Normal Univ Coll Chem &

Pharmaceut Sci Guilin Peoples R China;

Guilin Univ Technol Coll Mat Sci &

Engn Guangxi Key Lab Univ Clean Met &

Comprehens Utili Key Lab New Proc Technol Nonferrous Met &

Mat Min Guilin Peoples R China;

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中图分类化学;
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1. Manganese(II) enhanced fluorescent nitrogen-doped graphene quantum dots: a facile and efficient synthesis and their applications for bioimaging and detection of Hg2+ ions [J] . Yang Li, Qin Aimiao, Chen Shuoping, RSC Advances . 2018,第11期

机译：锰（ii）增强荧光氮掺杂石墨烯量子点：容易和有效的合成及其用于生物成像和检测HG2 +离子的应用
2. Facile synthesis of oxygen and sulfur co-doped graphitic carbon nitride fluorescent quantum dots and their application for mercury(II) detection and bioimaging [J] . Lu Ya-Chun, Chen Jia, Wang Ai-Jun, Journal of Materials Chemistry, C. materials for optical and electronic devices . 2015,第1期

机译：氧和硫共掺杂石墨氮化碳荧光量子点的简便合成及其在汞（II）检测和生物成像中的应用
3. Facile and highly effective synthesis of nitrogen-doped graphene quantum dots as a fluorescent sensing probe for Cu2+ detection [J] . Current applied physics: the official journal of the Korean Physical Society . 2020,第4期

机译：适用于氮掺杂石墨烯量子点作为Cu2 +检测的荧光传感探针的体积和高效合成
4. Facile synthesis of fluorescent carbon quantum dots and their potential application in cancer theranostics [C] . Bryan Christian A. Karingal, Yih-Chih Hsu Conference on Reporters, Markers, Dyes, Nanoparticles, and Molecular Probes for Biomedical Applications . 2021

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5. Nitrogen-doped graphene quantum dots and their electrocatalytic and photocatalytic activity. [D] . Li, Qiqi. 2015

机译：氮掺杂石墨烯量子点及其电催化和光催化活性。
6. Facile Synthesis of Nitrogen-Doped Carbon Quantum Dots with Chitosan for Fluorescent Detection of Fe3+ [O] . Li Zhao, Yesheng Wang, Xihui Zhao, 2019

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7. Rapid Synthesis of Highly Fluorescent Nitrogen-Doped Graphene Quantum Dots for Effective Detection of Ferric Ions and as Fluorescent Ink [O] . Qiaoli Ren, Lu Ga, Jun Ai 2019

机译：高荧光氮掺杂石墨烯量子点的快速合成有效检测铁离子和荧光油墨

Manganese(II) enhanced fluorescent nitrogen-doped graphene quantum dots: a facile and efficient synthesis and their applications for bioimaging and detection of Hg2+ ions

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