NIMTE OpenIR  > 2018专题
Carbon-Dots-Based Lab-On-a-Nanoparticle Approach for the Detection and Differentiation of Antibiotics
Qiao, Li'na; Qian, Sihua; Wang, Yuhui; Yan, Shifeng; Lin, Hengwei
2018
发表期刊CHEMISTRY-A EUROPEAN JOURNAL
卷号24期号:18页码:4703-4709
摘要Fluorescent carbon dots (CDs) have received considerable attention in recent years due to their superior optical properties. To take further advantages of these unique features, herein, a CDs-based lab-on-a-nanoparticle approach for the detection and discrimination of antibiotics is developed. The sensing platform was designed based on the different channel's fluorescence recoveries or further quenching of the full-color emissive CDs (F-CDs) and metal ion ensembles upon the addition of antibiotics. The F-CDs exhibited unusually comparable emission intensity nearly across the entire visible spectrum even as the excitation wavelength is shifted, making it very suitable for the construction of multi-channel sensing systems. The sensing platform was fabricated on the basis of the competing interaction of metal ions with the F-CDs and antibiotics. Three metal ions (i.e., Cu2+, Ce3+ and Eu3+) can efficiently quench the fluorescence of the F-CDs. Upon the addition of antibiotics, the fluorescent intensities either recovered at different emission wavelengths or were further quenched to various degrees. The fluorescence response patterns at different emission wavelength were characteristic for each antibiotic and can be quantitatively differentiated by standard statistical methods (e.g., hierarchical clustering analysis and principal component analysis). Moreover, as an example, the proposed method was applied for quantitative detection of oxytetracycline with a limit of detection to be 0.06m. Finally, the sensing system was successfully employed for residual antibiotics detection and identification in real food samples.
关键词Performance Liquid-chromatography Colorimetric Sensor Array Tandem Mass-spectrometry Multiion Analysis Sensing Device Quantum Dots Logic Gate Metal-ions Discrimination Water
学科领域Chemistry
语种英语
文献类型期刊论文
条目标识符http://ir.nimte.ac.cn/handle/174433/16747
专题2018专题
推荐引用方式
GB/T 7714
Qiao, Li'na,Qian, Sihua,Wang, Yuhui,et al. Carbon-Dots-Based Lab-On-a-Nanoparticle Approach for the Detection and Differentiation of Antibiotics[J]. CHEMISTRY-A EUROPEAN JOURNAL,2018,24(18):4703-4709.
APA Qiao, Li'na,Qian, Sihua,Wang, Yuhui,Yan, Shifeng,&Lin, Hengwei.(2018).Carbon-Dots-Based Lab-On-a-Nanoparticle Approach for the Detection and Differentiation of Antibiotics.CHEMISTRY-A EUROPEAN JOURNAL,24(18),4703-4709.
MLA Qiao, Li'na,et al."Carbon-Dots-Based Lab-On-a-Nanoparticle Approach for the Detection and Differentiation of Antibiotics".CHEMISTRY-A EUROPEAN JOURNAL 24.18(2018):4703-4709.
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