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学科主题物理化学
Enhanced photoluminescence and characterization of multicolor carbon dots using plant soot as a carbon source
Tan, Mingqian1; Zhang, Lingxin1; Tang, Rong1; Song, Xiaojie1; Li, Yimin2; Wu, Hao1; Wang, Yanfang1; Lv, Guojun1; Liu, Wanfa2; Ma, Xiaojun1; Tan MQ(谭明乾); Ma XJ(马小军)
关键词Carbon Dots Plant Soot Fluorescent Probes Biolabeling
刊名TALANTA
2013-10-15
DOI10.1016/j.talanta.2013.06.061
115页:950-956
收录类别SCI
合作性质
文章类型Article
部门归属18,7
项目归属1802,703
产权排名待补充
WOS标题词Science & Technology ; Physical Sciences
资助者1,1 ; 1,1 ; 1,1 ; 1,1
类目[WOS]Chemistry, Analytical
研究领域[WOS]Chemistry
关键词[WOS]QUANTUM DOTS ; CANDLE SOOT ; NANOPARTICLES ; ROUTE ; FLUORESCENCE ; FACILE
英文摘要Carbon dots (C-dots) are a class of novel fluorescent nanomaterials, which have drawn great attention for their potential applications in bio-nanotechnology. Multicolor C-dots have been synthesized by chemical nitric acid oxidation using the reproducible plant soot as raw material. TEM analysis reveals that the prepared C-dots have an average size of 3.1 nm. The C-dots are well dispersed in aqueous solution and are strongly fluorescent under the irradiation of ultra-violet light. X-ray photoelectron spectroscopy characterization demonstrates that the O/C atomic ratio for C-dots change to from 0.207 to 0.436 due to the chemical oxidation process. The photo bleaching experiment reveals that the C-dots show excellent photostability as compared with the conventional organic dyes, fluorescein and rhodamine B. The fluorescence intensity of the C-dots did not change significantly in the pH range of 3-10. To further enhance the fluorescence quantum yield, the C-dots were surface modified with four types of passivation ligands, 4,7,10-trioxa-1,13-tridecanediamine (TTDDA), poly-L-lysine (PLL), cysteine and chitosan and the fluorescence quantum yields of the TTDDA, PLL, cysteine and chitosan passivated C-dots were improved 1.53-, 5.94-, 2.00- and 3.68-fold, respectively. Fourier-transform infrared (FTIR) spectra were employed to characterize the surface groups of the C-dots. The bio-application of the C-dots as fluorescent bio-probes was evaluated in cell imaging and ex vivo fish imaging, which suggests that the C-dots may have potential applications in biolabeling and bioimaging. (C) 2013 Elsevier B.V. All rights reserved.
语种英语
资助者1,1 ; 1,1 ; 1,1 ; 1,1
原文出处查看原文
WOS记录号WOS:000328095600135
引用统计
被引频次:51[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/119629
专题中国科学院大连化学物理研究所
通讯作者Tan MQ(谭明乾); Ma XJ(马小军)
作者单位1.Chinese Acad Sci, Dalian Inst Chem Phys, Lab Biomed Mat Engn, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Lab Coil Efficiency & Opt Resonator, Dalian 116023, Peoples R China
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Tan, Mingqian,Zhang, Lingxin,Tang, Rong,et al. Enhanced photoluminescence and characterization of multicolor carbon dots using plant soot as a carbon source[J]. TALANTA,2013,115:950-956.
APA Tan, Mingqian.,Zhang, Lingxin.,Tang, Rong.,Song, Xiaojie.,Li, Yimin.,...&马小军.(2013).Enhanced photoluminescence and characterization of multicolor carbon dots using plant soot as a carbon source.TALANTA,115,950-956.
MLA Tan, Mingqian,et al."Enhanced photoluminescence and characterization of multicolor carbon dots using plant soot as a carbon source".TALANTA 115(2013):950-956.
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