Haematococcus pluvialis residues derived deep red emissive carbon dots for ultrasensitive and selective Cu2+detection in seawater
文献类型：期刊论文
| 作者 | Guo, Shuju1,2,3; Yang, Na1,2,3; Yu, Wenjie1,2,3; Zhang, Litao1,2,3; Liu, Jianguo1,2,3 |
| 刊名 | SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
 |
| 出版日期 | 2026-03-05 |
| 卷号 | 348页码:12 |
| 关键词 | Carbon dots Cu2+detection Fluorescent sensors Deep red emission Biomass-derived nanosensors |
| ISSN号 | 1386-1425 |
| DOI | 10.1016/j.saa.2025.127201 |
| 通讯作者 | Zhang, Litao(zhanglitao@qdio.ac.cn) ; Liu, Jianguo(jgliu@qdio.ac.cn) |
| 英文摘要 | Accurate and reliable detection of trace copper ions (Cu2+) is of great importance due to their dual role as essential micronutrients and potential environmental toxins. Herein, we report the first synthesis of deep red emissive CDs (CD-HP) derived from Haematococcus pluvialis residues, followed by nitrogen-doping modification (CD-HPE series) to enhance ion selectivity. Among them, CD-HPE2 exhibits excitation-independent emission at 674 nm with a narrow full width at half maximum (FWHM) of 34 nm, rivaling heavy metal-based quantum dots while retaining biocompatibility. The sensor demonstrates outstanding sensing performance, achieving an ultralow detection limit of 3.03 nM and a linear response range of 10-100 nM. The sensor shows excellent selectivity for Cu2+ against potentially interfering ions and maintains stable fluorescence across pH 6-9 and salinity levels up to 50 %o. Application to real seawater samples yielded recoveries of 94.10-106.45 %, confirming its reliability in complex matrices. Compared with recently reported biomass-derived CDs, CD-HPE2 offers unique optical properties, superior sensitivity, and strong anti-interference capability. This work highlights an eco-friendly strategy to upcycle microalgal residues into high-value nanosensors and establishes a robust platform for ultrasensitive Cu2+ detection in environmental analysis. |
| WOS关键词 | GRAPHENE QUANTUM DOTS ; FLUORESCENT-PROBE ; POROUS CARBON ; FLUOROPHORES ; ION |
| 资助项目 | National Natural Science Foundation of China[32370409] ; National Natural Science Foundation of China[32302979] ; Yunnan Science and Technology Talent Development[2] |
| WOS研究方向 | Spectroscopy |
| 语种 | 英语 |
| WOS记录号 | WOS:001622661500001 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/204253]  |
| 专题 | 海洋研究所_实验海洋生物学重点实验室 |
| 通讯作者 | Zhang, Litao; Liu, Jianguo |
| 作者单位 | 1.Chinese Acad Sci, Inst Oceanol, State Key Lab Breeding Biotechnol & Sustainable Aq, Qingdao 266000, Peoples R China 2.Qingdao Marine Sci & Technol Ctr, Lab Marine Biol & Biotechnol, Qingdao 266000, Peoples R China 3.Chinese Acad Sci, Inst Oceanol, Lab Expt Marine Biol, Qingdao 266000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Guo, Shuju,Yang, Na,Yu, Wenjie,et al. Haematococcus pluvialis residues derived deep red emissive carbon dots for ultrasensitive and selective Cu2+detection in seawater[J]. SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY,2026,348:12. |
| APA | Guo, Shuju,Yang, Na,Yu, Wenjie,Zhang, Litao,&Liu, Jianguo.(2026).Haematococcus pluvialis residues derived deep red emissive carbon dots for ultrasensitive and selective Cu2+detection in seawater.SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY,348,12. |
| MLA | Guo, Shuju,et al."Haematococcus pluvialis residues derived deep red emissive carbon dots for ultrasensitive and selective Cu2+detection in seawater".SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 348(2026):12. |
入库方式： OAI收割
来源：海洋研究所
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