Considering the potential of nanostructured titanium dioxide layers as drug delivery systems, it is advisable to indicate possibility creating a functional system based on anodic TiO2 for celecoxib an alternative anti-inflammatory and its inclusion complex with β-cyclodextrin. First, optimal composition celecoxib—β-cyclodextrin complexes was synthesized determined. The effectiveness complexatio...

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...

This work revealed that β-cyclodextrin was attached onto the surface of TiO(2) predominately by its secondary ring side, which caused paradoxical functions of β-cyclodextrin in the photodegradation of the four bisphenols. The equilibrium between the guest adsorbed through β-cyclodextrin onto TiO(2) and the one locked in β-CD in water could also change the role of β-cyclodextrin in the degradati...

Novel (S)-camptothecin-dextran polymers were obtained by "click" grafting of azide-modified (S)-camptothecin and alkyne-modified dextrans. Two series based on 10 kDa and 70 kDa dextrans were prepared with a degree of substitution of (S)-camptothecin between 3.1 and 10.2%. The binding properties with β-cyclodextrin and β-cyclodextrin polymers were measured by isothermal titration calorimetry and...

modifying polyester spacer fabric by β-cyclodextrin produces a new product with outstanding characteristics. citric acid is used as a crosslinking agent for improvement of durability of this material in textile fabrics. in this research different concentrations of citric acid and β-cyclodextrin were applied on a 3d fabric and some properties including weight change, weight of moisture residue, ...

  Objective(s): The aim of this work was to investigate the effect of the natural and the chemically modified form of cyclodextrins namely; β-cyclodextrin (β-CD) and hydroxypropyl-β-cyclodextrin (HP-β-CD) respectively on the solubility and dissolution rate of aripiprazole; an antipsychotic medication showing poor aqueous solubility.   Materials and Methods: Phase solubility of ar...

BACKGROUND Nowadays, the encapsulation of cytotoxic chemotherapeutic agents is attracting interest as a method for drug delivery. We hypothesized that the efficiency of helenalin might be maximized by encapsulation in β-cyclodextrin nanoparticles. Helenalin, with a hydrophobic structure obtained from flowers of Arnica chamissonis and Arnica Montana, has anti-cancer and anti-inflammatory activit...

Unfolding/refolding of a plasma protein, human serum albumin (HSA), is studied using fluorescence correlation spectroscopy (FCS) and single molecule fluorescence resonance energy transfer (sm-FRET). Addition of cholesterol causes unfolding of HSA resulting in an increase in the hydrodynamic diameter (dH = 2rH) from 76 Å in the native state to 120 Å upon addition of 1 mM cholesterol. Addition of...

The solubility of trihexyphenidyl (Thp) was improved by its combination with β-cyclodextrin (β-CD) and modified β-CDs. The solubility of Thp was found to be increased in the presence of β-CD, hydroxypropyl-β-cyclodextrin (HP-β-CD), methyl-β-cyclodextrin (Me-β-CD) and sulfobutylether-β-cyclodextrin (SBE-β-CD). In particular, the solubility of Thp in conjunction with SBE-β-CD was increased by a f...

A method for the separation of folinic acid diastereomers by capillary electrophoresis in chiral separation media was developed. Aiming to achieve a good separation of the anionic analytes, a newly synthesized cationic β-cyclodextrin derivative, mono-6-deoxy-6-piperdine-β-cyclodextrin, was applied as the chiral selector. The effect of background electrolyte pH, the concentration of the cyclodex...