Effective nitenpyram detection in a dual-walled nitrogen-rich In(iii)/Tb(iii)–organic framework

Abstract

By employing a mixed metal synthesis strategy, a heterometallic MOF, [In3Tb3(TATAB)4(OH)6(H2O)3]∙12DMF∙9H2O (1), has been constructed based on a nitrogen-rich ligand 4,4′,4″-s-triazine-1,3,5-triyltri-p-aminobenzoic (H3TATAB). Compound 1 shows a 3D doubly interpenetrated framework...

A new three-dimensional zinc(ii) metal–organic framework as a fluorescence sensor for sensing the biomarker 3-nitrotyrosine

“…As is known, photoelectrons can be transferred from the donor to the acceptor when the LUMO value of the donor is higher than that of the acceptor, which may cause luminescence quenching. 72,73 On the basis of the above analysis, the quenching effect of 3-NT on the Zn-MOF can be considered as a result of the combination of CA, DQE and PET.…”

Lanthanide-MOFs as multifunctional luminescent sensors

“…5 At present, conventional inspection methods rely mainly on detection instruments, which require frequent and careful calibration and maintenance, with many inconveniences. 6 More and more researchers are focusing on the fluorescence sensing method, which exhibits high sensitivity, high selectivity and simple operation. Hence, it is necessary and urgent to develop affordable, convenient, fast and sensitive detection tools for real-time analyte detection.…”

A Novel Turn-On Fluorescence Probe Based on Cu(II) Functionalized Metal–Organic Frameworks for Visual Detection of Uric Acid

“…As shown in Figure 3 a, the powder X-ray diffraction pattern of UA/Cu 2+ @Tb-MOFs collected from UA aqueous solution is in good agreement with that of Cu 2+ @Tb-MOFs and Tb-MOFs. This result not only indicates the structural stability of Cu 2+ @Tb-MOFs, but also excludes the possibility of fluorescence recovery caused by structural collapse or reorganization [ 48 , 49 ]. The luminescence lifetime is a very important parameter to explore the fluorescence recovery mechanism of Cu 2+ @Tb-MOFs; we determined the fluorescence lifetime of Tb-MOFs, Cu 2+ @Tb-MOFs and UA/Cu 2+ @Tb-MOFs samples.…”