Novel carbon dots-based system for "on-off-on" fluorescence consecutive sensing of Au3+ and L-Cys
文献类型：期刊论文
| 作者 | Wei, Guo1; Wang, Chuanliang2,4; Wang, Rui1; Geng, Xuhui2; Li, Jinhua3; Chen, Lingxin3; Song, Zhihua1 |
| 刊名 | FOOD CHEMISTRY
 |
| 出版日期 | 2025-12-15 |
| 卷号 | 495页码:10 |
| 关键词 | L-cysteine Au nanoparticles Miniaturized fluorimeter Test strips Fluorescence detection Real samples |
| ISSN号 | 0308-8146 |
| DOI | 10.1016/j.foodchem.2025.146303 |
| 通讯作者 | Li, Jinhua(jhli@yic.ac.cn) ; Song, Zhihua(zhihuasong08@yeah.net) |
| 英文摘要 | In this study, a novel carbon dots-based system was developed for the sequential quantification of Au3+ and Lcysteine (L-Cys). The system comprises N,F-doped carbon dots (N,F-CDs), a custom-designed miniaturized fluorimeter, and test strips. The N,F-CDs exhibit outstanding optical properties, including a large Stokes shift (127 nm) and high fluorescence intensity. The test strips offer low-cost, low-volume sample consumption, while the miniaturized fluorimeter provides high sensitivity in a compact format. The system demonstrated excellent analytical performance, including high sensitivity (limits of detection: 0.048-0.488 mu mol/L for Au3+ and 8.7-40.9 nmol/L for L-Cys), minimal matrix interference (within +/- 20 %), high accuracy (97.5 % to 104.5 % for Au3+, 97.6 % to 107.5 % for L-Cys), good precision (2.9 % to 4.5 % for Au3+, 1.2 % to 7.0 % for L-Cys), robust stability, and strong inter/intra-day reproducibility (relative standard deviations <= 2.1 %). Furthermore, it showed high selectivity for Au3+ and L-Cys in complex matrices such as tap water, milk, and lemon-flavored beverages. |
| WOS关键词 | QUANTUM DOTS ; CYSTEINE ; NANOPROBE |
| WOS研究方向 | Chemistry ; Food Science & Technology ; Nutrition & Dietetics |
| 语种 | 英语 |
| WOS记录号 | WOS:001569405700001 |
| 资助机构 | National Natural Science Foundation of China ; Shandong Provincial Natural Science Foundation |
| 源URL | [http://ir.yic.ac.cn/handle/133337/41349]  |
| 专题 | 烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室 |
| 通讯作者 | Li, Jinhua; Song, Zhihua |
| 作者单位 | 1.Yantai Univ, Collaborat Innovat Ctr Adv Drug Delivery Syst & Bi, Key Lab Mol Pharmacol & Drug Evaluat, Sch Pharm,Minist Educ, Yantai 264005, Peoples R China 2.Chinese Acad Sci, Dalian Inst Chem Phys, CAS Key Lab Separat Sci Analyt Chem, 457 Zhongshan Rd, Dalian 116023, Peoples R China 3.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Coastal Zone Ecol Environm Monitoring Technol & Eq, Yantai 264003, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wei, Guo,Wang, Chuanliang,Wang, Rui,et al. Novel carbon dots-based system for "on-off-on" fluorescence consecutive sensing of Au3+ and L-Cys[J]. FOOD CHEMISTRY,2025,495:10. |
| APA | Wei, Guo.,Wang, Chuanliang.,Wang, Rui.,Geng, Xuhui.,Li, Jinhua.,...&Song, Zhihua.(2025).Novel carbon dots-based system for "on-off-on" fluorescence consecutive sensing of Au3+ and L-Cys.FOOD CHEMISTRY,495,10. |
| MLA | Wei, Guo,et al."Novel carbon dots-based system for "on-off-on" fluorescence consecutive sensing of Au3+ and L-Cys".FOOD CHEMISTRY 495(2025):10. |
入库方式： OAI收割
来源：烟台海岸带研究所
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