Opening book details…
Can I read Ultrasensitive and Highly Selective Detection of Formaldehyde via an Adenine-based Biological Metal–organic Framework on EtoBox?
Ultrasensitive and Highly Selective Detection of Formaldehyde via an Adenine-based Biological Metal–organic Framework by Yu-Bai Wei; Ming-Jie Wang; Dong Luo; Yong-Liang Huang; Mo Xie; Weigang Lu; Xugang Shu; Dan Li is a Materials Science article available to read on EtoBox.
What is Ultrasensitive and Highly Selective Detection of Formaldehyde via an Adenine-based Biological Metal–organic Framework about?
Formaldehyde poses a carcinogenic risk to human beings, yet it would be difficult to accurately quantify by spectroscopic methods if other volatile organic compounds were present. Herein, we report a robust adenine-based BioMOF (JNU-100) constructed through a mixed-ligand strategy with BPDC-(NH 2 ) 2 , an amine-functionalized dicarboxylate of intrinsically strong fluorescence, as the second ligand. JNU-100 exhibits an exceptional fluorescence ''turn-on'' exclusively for formaldehyde in aqueous solutions with a detection limit of 0.020 mM. In situ single-crystal X-ray diffraction studies reveal the hemiaminal formation on the Watson-Crick sites of adenines and the hemiaminal further stretching out to bridge over the neighboring BPDC-(NH 2 ) 2 through hydrogen bonding, which may suppress the nonradiative decay upon photoexcitation, resulting in restoration of the strong fluorescence of BPDC-(NH 2 ) 2 . 13 C solid-state NMR and isothermal titration calorimetry studies corroborate the hemiaminal formation on the Watson-Crick sites. Theoretical calculations confirm the fluorescence ''turn-on'' is originated from ligand-to-ligand charge transfer (LLCT) through the bridging hemiaminal. As
Who reads Ultrasensitive and Highly Selective Detection of Formaldehyde via an Adenine-based Biological Metal–organic Framework?
It is typically read by researchers, students, and practitioners in Materials Science.
- Author
- Yu-Bai Wei; Ming-Jie Wang; Dong Luo; Yong-Liang Huang; Mo Xie; Weigang Lu; Xugang Shu; Dan Li
- Published
- 2021
- Language
- EN
- Field
- Materials Science (Physical Sciences)