Ratiometric fluorescence sensing of formaldehyde in food samples based on bifunctional MOF
文献类型：期刊论文
| 作者 | Zuo, Ya-Nan; Zhao, Xian-En; Xia, Yinghui; Liu, Zhi-Ang; Sun, Jing; Zhu, Shuyun; Liu, Huwei |
| 刊名 | MICROCHIMICA ACTA
 |
| 出版日期 | 2023 |
| 卷号 | 190期号:1 |
| 英文摘要 | A new fluorescence strategy was described for ratiometric sensing of formaldehyde (FA) with bifunctional MOF, which acted as a fluorescence reporter as well as biomimetic peroxidase. With the assistance of H2O2, NH2-MIL-101 (Fe) catalyzes the oxidation of non-luminescent substrate o-phenylenediamine (OPD) to produce fluorescent product (oxOPD) with the maximum emission at 570 nm. Besides, intrinsic fluorescence of MOF (lambda em = 445 nm) was quenched by oxOPD through inner filter effect (IFE). However, FA and OPD reacted to generate Schiff bases, which competitively consumed OPD inhibiting the generation of oxOPD. Under the excitation wavelength of 375 nm, a ratiometric strategy was designed to detect FA with the fluorescence intensity ratio at 445 nm and 570 nm (F-445/F-570) as readout signal. This strategy exhibited a wide linear range (0.1-50 mu M) and low detection limit of 0.03 mu M. This method was confirmed for FA detection in food samples. In addition to establishing a new method to detect FA, this work will open new applications of MOF in food safety. |
| 源URL | [http://210.75.249.4/handle/363003/61723]  |
| 专题 | 西北高原生物研究所_中国科学院西北高原生物研究所 |
| 推荐引用方式 GB/T 7714 | Zuo, Ya-Nan,Zhao, Xian-En,Xia, Yinghui,et al. Ratiometric fluorescence sensing of formaldehyde in food samples based on bifunctional MOF[J]. MICROCHIMICA ACTA,2023,190(1). |
| APA | Zuo, Ya-Nan.,Zhao, Xian-En.,Xia, Yinghui.,Liu, Zhi-Ang.,Sun, Jing.,...&Liu, Huwei.(2023).Ratiometric fluorescence sensing of formaldehyde in food samples based on bifunctional MOF.MICROCHIMICA ACTA,190(1). |
| MLA | Zuo, Ya-Nan,et al."Ratiometric fluorescence sensing of formaldehyde in food samples based on bifunctional MOF".MICROCHIMICA ACTA 190.1(2023). |
入库方式： OAI收割
来源：西北高原生物研究所
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。