Quasi-elastic neutron scattering (QENS) spectra of heavy water solutions of γ-cyclodextrin (γ-CD), and of methylated derivatives of cyclodextrins, 2,6-di-O-methyl β-CD (DIMEB) and 2,3,6-tri-O-methyl-γ-CD (TRIMEG) were taken in the temperature range from 5 °C to 45 °C. The spectra were compared to a model for the scattering function S(Q, ω) describing translational and rotational dynamics of the...

Various heptasubstituted derivatives of β-cyclodextrin (β-CD) bearing 1, 2 and 3 methyl substituents per glucose unit were synthesized by regioselective methods. Binding free energies and binding enthalpies of these hosts towards 4-tert-butylbenzoate and adamantane-1-carboxylate were determined by isothermal titration microcalorimetry (ITC). It was found that methyl substituents at the secondar...

This paper describes the synthesis, structural characterization and cellular uptake of a supramolecular 1 : 2 inclusion complex of meso-tetraphenylporphyrin having an octaarginine peptide chain (R8-TPP) and heptakis(2,3,6-tri-O-methyl)-β-cyclodextrin (TMe-β-CD). R8-TPP was synthesized by 2 approaches: (1) on-resin conjugation of the N-terminal of octaarginine with 5-(4-carboxyphenyl)-10,15,20-t...

background and objectives: application of garlic oil in food industry can be improved by encapsulation. there is no study about the formation of inclusion complex of garlic oil by beta-cyclodextrin. the aim of the present study is comparison of the antioxidant and antibacterial activities of free and encapsulated garlic oil with beta-cyclodextrin. materials and methods: antioxidant activity was...

DNA methylation as an epigenetic mediator plays the important role in spatial and temporal gene regulation and ensures the stability and the plasticity of organism. In this investigation, methylation sensitive amplification polymorphism (MSAP) were assessed in CCGG sites on a halophytic plant, Aeluropuslittoralis in response to different temperature stresses including freezing...

Abstract Hydroxycitronellal has been widely used in foods, beverages, perfumery and cosmetics. It can also be to treat anxiety. The major drawbacks regarding the use of hydroxycitronellal are related water insolubility, volatility, instability, sensitization. To overcome these concerns, β-cyclodextrin was adopted as wall material encapsulate this work. Hydroxycitronellal-β-cyclodextrin inclusio...

A water-soluble strapped iron(III)tetraarylporphyrin (FeIIIPor-1) bearing two propylpyridinium groups at the side chains and a carboxylic acid group overhanging position of strap was synthesized to mimic function myoglobin with distal polar functionality in aqueous solution. FeIIIPor-1 forms stable 1:1 inclusion complex per-O-methylated β-cyclodextrin dimer having pyridine linker (Py3OCD), prov...

on its spread, type and infectivity. The need is also being stressed for the knowledge being circulated among the practising doctors and medical students. But one would be very much disappointed at the present knowledge of the very much up-to-date doctors coming out from the best institutions. It will not be out of place to mention one or two incidents. An intelligent Anglo-Indian told the writ...

Cyclodextrins are naturally oligosaccharides which had cyclic glucopyranoside units even if six to form α-cyclodextrin (α-CD), seven β-cyclodextrin (β-CD) or eight γ-cyclodextrin (γ-CD) and some other derivatives. It has a truncated cone shape with hydrophobic cavity hydrophilic from the external surface of cyclodextrins. Gold nanoparticles incorporated cyclodextrins enhanced optical electrical...

Herein we report the efficient extraction of aromatic analytes from crude oil and tar balls using multiple cyclodextrin derivatives. The known propensity of the cyclodextrins to bind hydrophobic guests in their hydrophobic interiors enhanced the extraction of aromatic analytes from the oil layer to the aqueous layer, with methyl-β-cyclodextrin and β-cyclodextrin providing the most significant e...