Colorimetric and ratiometric fluorescent dual-mode sensitive detection of Hg2+ based on UiO-66-NH2@Au composite

Highly Defective Zirconium-Based Metal–Organic Frameworks for the Efficient Adsorption and Detection of Sugar Phosphates in the Biological Sample

“…The peak at 1568 cm –1 originated from C–O–Zr bonding, indicating the coordination between –COOH and Zr 4+ . The peak at 1430 cm –1 indicated the existence of the C–O bond, which also originated from an organic ligand. , The enhanced peaks at 1257 and 1387 cm –1 represented the stretching vibration of the C–N bond, confirming the presence of aromatic amines in UiO-66-NH 2 . , Zr–O absorption peaks appeared at 481, 665, and 767 cm –1 . − This analysis further confirmed that the addition of acetic acid did not significantly alter the crystal morphology of HP-UiO-66-NH 2 - X .…”

The construction of dual-emissive ratiometric fluorescent probes based on fluorescent nanoparticles for the detection of metal ions and small molecules

“…With the development of nanomaterials with peroxidase mimetic activity and fluorescent property dual functions, FNP-nanoenzyme-o-PD ternary systems can be simplified as nanomaterial-o-PD binary systems. For example, peroxidase mimetic activity and fluorescence property bifunctional Cu-MOF, 323 Fe@PCN-222 MOF, 324 NH 2 -MIL-101(Fe) MOF, 325,326 Au-Pt NCs, 327 UiO-66-NH 2 @Au, 328 Pd-modified C 3 N 4 nanosheets (Pd/C 3 N 4 ), 329 aptamer-modified C 3 N 4 nanosheets, 330 Cu-doped CDs (Cu- CDs), 331 Fe/N-co-doped CDs (Fe/N-CDs), 332 FeCo/N-co-doped CDs (FeCo/N-CDs), 333 and Co-and N-doped CDs (CoN-CDs) 334 have been prepared and applied to propose DRFPs with o-PD.…”