Photoisomerization, assembling and fluorescence photoswitching behaviors of a water-soluble stiff-stilbene with cucurbit[7]uril

Photoswitching the fluorescence of nanoparticles for advanced optical applications

“…Additionally, synthetic supramolecules frequently serve as versatile hosts for incorporating photochromic components, thus enhancing the photoswitching properties of photochromic components. [71][72][73][74] For example, Zhang et al designed a spiropyran-modied cyanostilbene(BCNMC)/cucurbit [8]uril (CB [8]) complex, which exhibited multi-uorescence photoswitching behaviors. 75 As shown in Fig.…”

Recent advances in photoresponsive fluorescent materials based on [2+2] photocycloaddition reactions

“…Its high chemical stability, structural simplicity, and significant difference in electronic properties between the trans and cis isomers have made it a widely studied light responsive materials. 46 In contrast, dithienylcyclopentenes undergo intramolecular photocyclisation reactions between two aromatic rings connected by an ethene unit under some short wavelength of light to produce a nearly planar closed-ring isomer with a large conjugation. The closed-ring isomer can be reversibly altered to its open-ring form under the irradiation of light at another wavelength or by the action of heat.…”

Shape memory hydrogel containing cucurbit[6]uril-carbon dots: unique recognition of metal ions

“…Cucurbit[n]urils (CB[n]), a class of macrocyclic hosts with rigid hydrophobic cavities and two identical carbonyl-fringed portals, have attracted much attention in supramolecular chemistry [1][2][3] . As a macrocyclic receptor molecule, cucurbit[6]uril (CB[6]), could be used to prepare luminescent materials by non-covalent interaction such as light-on/light-off switches 4,5 , chemiluminescent hydrogels 6-8 , Phototherapy drugs [9][10][11][12] , uorescence probe [13][14][15] . With the development of industry, environmental pollution is concerned and water pollution is the most urgent.…”