Microalgae-derived cellulose/inorganic nanocomposite rattle-type microspheres as an advanced sensor for pollutant detection
文献类型：期刊论文
| 作者 | Bi, Lei; Chen, Yi-Ping; Wang, Chen; Su, Jing; Pan, Gang |
| 刊名 | CHEMICAL ENGINEERING JOURNAL
 |
| 出版日期 | 2020-09-01 |
| 卷号 | 395页码:1-9 |
| 关键词 | Hollow materials Porous materials Microspheres Core-shell structure Green synthesis Immunoassay |
| ISSN号 | 1385-8947 |
| 英文摘要 | The versatility of rattle-type microspheres is tightly correlated with the composition and morphology. Exploring advanced rattle-type microspheres with simultaneous controllable composition and micro/nanostructures via novel designed and regulated strategies may have great advantages for performing complex tasks. Herein, cellulose/inorganic hybrid rattle-type microspheres, produced using microalgae as natural chemical reservoirs, microreactors and matrix, is reported. By adjusting only pH and temperature, rattle-type microspheres with simultaneously controllable mesoporous outer shells (19.4-46.3 nm) and multicomponent nano-cores (i.e., Ca-5(PO4)(3)OH and Fe3O4/MgFe2O4) are obtained using microalgae as single-source precursors. Especially, the rattle-type microspheres-mediated immunosensor shows ultrahigh sensitivity for the detection of trace micro-cystin-LR in complex real water samples with a limit of quantitation of 0.05 ng/mL, which is a 10-fold improvement compared with conventional enzyme linked immunosorbent assays. Enhancement of the sensitivity is due to the tailorability and functionality in both the hollow shells and the cores of the rattle-type microspheres. The finely controlled pore-size, void space and natural carboxyl groups of the shell are beneficial for enzymes loading and for bio-conjugation. The cores contain magnetite and hydroxyapatite nano-particles, which can be utilised for magnetic separation and for anchoring more enzymes, resulting in considerable signal amplification. This work opens up a new and green route for the construction of rattle-type microspheres with tunable compositions and porosities, which makes it a flexible platform for various applications in immunoassay, biosensors, enrichment and separation of target substances, drug-delivery, and environmental remediation. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/44878]  |
| 专题 | 生态环境研究中心_环境纳米材料实验室 |
| 推荐引用方式 GB/T 7714 | Bi, Lei,Chen, Yi-Ping,Wang, Chen,et al. Microalgae-derived cellulose/inorganic nanocomposite rattle-type microspheres as an advanced sensor for pollutant detection[J]. CHEMICAL ENGINEERING JOURNAL,2020,395:1-9. |
| APA | Bi, Lei,Chen, Yi-Ping,Wang, Chen,Su, Jing,&Pan, Gang.(2020).Microalgae-derived cellulose/inorganic nanocomposite rattle-type microspheres as an advanced sensor for pollutant detection.CHEMICAL ENGINEERING JOURNAL,395,1-9. |
| MLA | Bi, Lei,et al."Microalgae-derived cellulose/inorganic nanocomposite rattle-type microspheres as an advanced sensor for pollutant detection".CHEMICAL ENGINEERING JOURNAL 395(2020):1-9. |
入库方式： OAI收割
来源：生态环境研究中心
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。