Construction of Supramolecular Fluorescent Probe by a Water-Soluble Pillar[5]arene and Its Recognition of Carbonate Ion

Abstract

The interaction between pyridine pillar[5]arene (PyP5) and 2-naphthol with the former as the host molecule and the latter as the guest molecule is studied by fluorescence spectroscopy and NMR techniques, and the results show that PyP5 forms a 1:1 host-guest inclusion complex with 2-naphthol. Although free 2-naphthol has strong fluorescence, it is quenched in 2-naphthol@PyP5. Experiments were conducted with 2-naphthol@PyP5 as a fluorescent probe to detect different anions with results showing that only CO32− causes a significant enhancement of the fluorescence of the fluorescent probe. Due to this high selectivity and high sensitivity, the fluorescent probe 2-naphthol@PyP5 may open up an effective way for the detection of CO32−.

New dual-mode orthogonal tunable fluorescence systems based on cucurbit[8]uril: White light, 3D printing, and anti-counterfeit applications

“…[44][45][46] However, PDI molecules tend to form non-fluorescent π-π stacks in water, which hampers their function in aqueous systems, and greatly limits the application of PDIs as photovoltaic materials. [47][48][49][50][51] The adoption of a supramolecular approach not only alleviates the negative effects of PDI-C6 intermolecular interactions and energy transfer processes but also confers color tunability and stimulus responsiveness to the white light-emitting materials due to the dynamic and reversible nature of the non-covalent interactions present. Indeed, wellstructured supramolecular materials can regulate energy transfer through an assemblydisassembly process and can lead to potentially diverse applications.…”

Molecular Machines and Microrobots: Nanoarchitectonics Developments and On-Water Performances

“…The development of mankind depends on the exploration of new functional materials. In particular, it has been supported over the last century by the development of various research fields related to materials development, including organic chemistry [ 1 , 2 , 3 , 4 ], inorganic chemistry [ 5 , 6 , 7 , 8 ], polymer science [ 9 , 10 , 11 , 12 ], coordination chemistry [ 13 , 14 , 15 , 16 ], supramolecular chemistry [ 17 , 18 , 19 , 20 ], biochemistry [ 21 , 22 , 23 , 24 ], and the other materials sciences [ 25 , 26 , 27 , 28 ]. The later period of the 20th century saw the inception of the revolutionary concept of nanotechnology.…”

New Dual-Mode Orthogonal Tunable Fluorescence Systems Based on Cucurbit[8]Uril: White Light, 3d Printing and Anti-Counterfeit Applications

“…[44][45][46] However, PDI molecules tend to form non-fluorescent π-π stacks in water, which hampers their function in aqueous systems, and greatly limits the application of PDIs as photovoltaic materials. [47][48][49][50][51] The adoption of a supramolecular approach not only alleviates the negative effects of PDI-C6 intermolecular interactions and energy transfer processes but also confers color tunability and stimulus responsiveness to the white light-emitting materials due to the dynamic and reversible nature of the non-covalent interactions present. Indeed, wellstructured supramolecular materials can regulate energy transfer through an assemblydisassembly process and can lead to potentially diverse applications.…”