3-Hydroxynaphtho[1,2-b]quinolizinium was synthesized by cyclodehydration route and its optical properties in different media were investigated. The absorption and emission spectra of this compound depend on the pH of the solution. Thus, at higher pH values the deprotonation yields a merocyanine-type dye that exhibits significantly red-shifted absorption bands and causes a dual emisson, i.e., a ...

Two supramolecular complexes of trans-1⊂CB[8] and trans-2⊂CB[8] were successfully achieved by the controlled selective complexation process of cucurbit[8]uril (CB[8]) with hetero-guest pair containing azobenzene and bispyridinium moieties in aqueous solution, exhibiting the reversibly light-driven movements of CB[8] upon the photocontrollable isomerization of azophenyl axle components. Signific...

For the first time a lid-free and charge-free inclusion complex with cucurbit[6]uril (CB[6]) has been isolated, the crystal structure is reported and the robust nature of the complex is demonstrated in the solid state while facile controlled release of the guest is achieved in solution.

abstract aims: elderlies are one of the vulnerable groups in the society that are increasing every day. senility is associated with disability and many chronic diseases. this study was performed to predict the self-efficacy and behavioral expectations in consumption of fruits and vegetables in elderly patients with functional constipation. instrument & methods: this cross-sectional study was pe...

Fluorescent nitrogen and fluorine doped carbon dots (CDs) were prepared by a hydrothermal method using levofloxacin (LVFX) cucurbit[6]uril (Q[6]) as the sources, respectively.

This publication lists and describes common viruses spread in cucurbit crops by whiteflies. It includes strategies for managing whiteflies, most of them originally from a similar on whiteflies tomatoes.

Using cucurbit[6]uril as protecting agent, well-defined Pd NPs were prepared via a simple one-pot method under mild conditions. The CB[6]-Pd NPs are very stable and have high chemical activities for catalyzing Suzuki-Miyaura cross-coupling reactions.

A pseudo-polycation was prepared based on the supramolecular cucurbit[8]uril ternary complex. It was then layer-by-layer assembled with poly(acrylic acid) to fabricate a stimuli-responsive film, which exhibited disassembly properties in response to stimuli, providing a supramolecular route for the fabrication of free-standing thin films.

A general protocol based on spontaneous adsorption of cucurbit[n]uril (CB[n]) molecules through a strong multivalence interaction between CB[n] and gold is described, by which the formation of self-assembled CB[n] monolayers on gold surfaces can be efficiently achieved.