Journal ArticleDOI
Understanding behaviour of vitamin-C guest binding with the cucurbit[6]uril host
TLDR
In this paper, non-covalent interaction and complexation behavior of sodium ascorbate (SA) with cucurbit[6]uril (CB[6]) at neutral pH in aqueous Na2SO4 solution was investigated using various analytical techniques like NMR, UV-Vis, fluorescence, TGA and DRS.Abstract:
The present study describes non-covalent interaction and complexation behaviour of sodium ascorbate (SA) with cucurbit[6]uril (CB[6]) at neutral pH in aqueous Na2SO4 solution. The interaction behaviour is investigated using various analytical techniques like NMR, UV–Vis, fluorescence, TGA and DRS. The substantial increase in the intensity of emission and absorption spectra of sodium ascorbate is observed. The Benesi–Hildebrand evaluation method is used to determine the stoichiometry and equilibrium constant of the cucurbit[6]uril–sodium ascorbate complex, which suggested the 1:1 complex. Time-dependent 1H NMR, 13C CP MAS and CD studies also echoed non-covalent interaction between SA with CB[6].read more
Citations
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Journal ArticleDOI
Chemical Sensors Based on Cucurbit[n]uril Macrocycles
Stephan Sinn,Frank Biedermann +1 more
Journal ArticleDOI
Cucurbit[ n ]uril-based host–guest-metal ion chemistry: an emerging branch in cucurbit[ n ]uril chemistry
TL;DR: In this article, a review provides an overview of related advances and achievements involving such a combination of Q[n]-based host-guest chemistry and Q[ n]-based coordination chemistry.
Journal ArticleDOI
The Breaking of Symmetry Leads to Chirality in Cucurbituril-Type Hosts
Riina Aav,Kamini A. Mishra +1 more
TL;DR: This review will present examples from three directions of induction of chirality in or by cucurbituril-type hosts: first, through the incorporation of stereogenic elements into host molecules; second, through complexation with achiral guests, which leads to axial supramolecular chiralities and helical structures; and third,Through the formation of complexes with chiral guests in multi-molecule complexes and induction of supramolescular chorality.
Journal ArticleDOI
Cucurbit[5]uril-mediated electrochemical hydrogenation of α,β-unsaturated ketones
Ayrlane Sales,Isabela Andrade de Oliveira e Castro,Frederico Duarte de Menezes,Thiago Matheus Guimarães Selva,Márcio Vilar +4 more
TL;DR: In this article, the potential of cucurbit[5]uril to be used as inverse phase transfer catalyst in electrocatalytic hydrogenation of α,β-unsaturated ketones is illustrated.
Journal ArticleDOI
In silico study of the encapsulation of α-tocopherol and α-tocotrienol vitamins E into cucurbit[7]uril
TL;DR: Theoretical methods were used to investigate the encapsulation of two vitamin E isoforms into the macrocycle cucurbit[7]uril (CB[7]). The [email protected][7] complexes were stable along 100 ns molecular dynamics simulation with similar conformation as mentioned in this paper .
References
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Journal ArticleDOI
Molecular interactions and the Benesi-Hildebrand equation
Journal ArticleDOI
Cucurbiturils–a New Family of Host Molecules
TL;DR: The cucurbituril homologues and derivatives provide new opportunities in many areas of supramolecular chemistry including recognition, catalysis, separation, transport, and many others.
Journal ArticleDOI
“Turn-on” fluorescent sensor array for basic amino acids in water
TL;DR: Multivariate analysis (LDA and HCA) clearly shows that the sensor array can discriminate amino acids from the corresponding amines which are produced by the action of amino acid decarboxylases.
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A Method for Synthesizing Partially Substituted Cucurbit[n]uril
TL;DR: In this article, a novel approach to cucurbituril synthesis is described where partial substitution is introduced into cucurlbit[ n ]uril, and the identification of homologues (and their substitution) in reaction mixtures is achieved by a combination of ESMS and the use of the molecular probes (guests) 1,4-dioxane and 1,9-octanediamine.
Journal ArticleDOI
Solubilisation and cytotoxicity of albendazole encapsulated in cucurbit[n]uril
Yunjie Zhao,Damian P. Buck,David L. Morris,Mohammad H. Pourgholami,Anthony I. Day,J. Grant Collins +5 more
TL;DR: Cytotoxicity assays against human colorectal cells, human ovarian cancer cells and the human T-cell acute lymphoblastic leukaemia cells indicated that encapsulation in Q[7] did not significantly reduce the in vitro anti-cancer activity of albendazole.