Fluorescence detection of phosphate in an aqueous environment by an aluminum-based metal-organic framework with amido functionalized ligands

Multifunctional fluorescent Eu-MOF probe for tetracycline antibiotics and dihydrogen phosphate sensing and visualizing latent fingerprints

“…The uorescent method has attracted extensive attention in sensing applications due to its high sensitivity, specicity, quick response, and simplicity of use. 10 In recent years, numerous metal-organic frameworks (MOFs), which are hybrid porous crystalline materials made up of organic ligands and metal ions, have been explored as uorescent sensors for environmental contaminants such as antibiotics, explosives, anions, cations, and dyes. [11][12][13][14][15] This is because they have tuneable functional sites and pore surfaces, viable supramolecular interactions between the target analytes and host frameworks, a large surface area, excellent stability, and the ability for regeneration.…”

“…The fluorescent method has attracted extensive attention in sensing applications due to its high sensitivity, specificity, quick response, and simplicity of use. 10 …”

Au/Lum/RhB@Ag-DMcT ICP-Based Double-Ratio Colorimetric and Fluorometric Dual Mode Assay and Multi-Responsive Coffee Ring Chips for Point-of-Use Analysis of Phosphate Ions

“…In recent decades, metal organic coordination polymers emerged as an ideal analytical platform for the exploitation of the on-site probes, − the uninterruptedly emerged metal–organic frameworks (MOFs)-based assays, for example. , Nevertheless, the relatively rigid coordination mode of MOFs renders difficulty for the rational design of host–guest interactions to multiply the signal readout, which is necessitated for the establishment of double-ratio colorimetric and fluorometric dual-mode sensing assay. With distinct flexibility, another counterpart of MOFs, the amorphous infinite coordination polymers (ICPs) are coming to the forefront of researchers’ minds. ,, First, the structural flexibility always endows the self-adaptive inclusion of not only one but also different tailor-made guests simultaneously. , This offers a new opportunity to break through the luminescent response restriction from lanthanide ICP host, and then, the development of lanthanide-free ICP to meet the requirement of national strategy resource storage is facilitated. , Second, the infinite coordination mode allows for the exquisite design of complex host–guest interactions within the ICPs to inherit the improved optical characteristics from the host and the guests. − Third, the flexibility enabled their quick response to the external stimuli in the form of the chemical structure alteration and the corresponding multiple optical responses, − which may lay out the foundation for designing the dual-mode sensing strategy.…”

Solid-State Luminescence Turn-On Sensing Using MOF-Confined Reporter–Spacer–Receptor Architectures Facilitated by Quencher Displacement

“…We then assessed the practicability of Fc@NU-1000-3 for phosphate detection in local river water, which was taken from the Yongjiang River (the section near Ningbo University). The obtained river water was spiked with different amounts of Comparison of the detection sensitivities for our Fc@NU-1000-3 probe and other recently reported turn-on luminescent phosphate sensors based on MOFs or their hybrids (UiO-66-NH 2 , 25 Al-BDC-NH 2 , 50 CDs/QDs@ZIF-8, 51 Al-MOF@PCN-224, 52 AuNCs/8Q5S, 53 CDs@ZIF-90 54 ). (d) The evolution of CLSM images of Fc@NU-1000-3 microcrystals proceeds with increasing phosphate concentration: (i) 0 μM, (ii) 30 μM, (iii) 100 μM. )…”

“…Error bars represent ±1 standard deviation, n = 3. (c)Comparison of the detection sensitivities for our Fc@NU-1000-3 probe and other recently reported turn-on luminescent phosphate sensors based on MOFs or their hybrids (UiO-66-NH 2 ,25 Al-BDC-NH 2 ,50 CDs/QDs@ZIF-8,51 Al-MOF@PCN-224,52 AuNCs/8Q5S,53 CDs@ZIF-9054 ). (d) The evolution of CLSM images of Fc@NU-1000-3 microcrystals proceeds with increasing phosphate concentration: (i) 0 μM, (ii) 30 μM, (iii) 100 μM.…”