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. 2013 Feb 15;92(2):1835-43.
doi: 10.1016/j.carbpol.2012.11.082. Epub 2012 Dec 3.

Spectroscopic investigation on the inclusion complex formation between amisulpride and γ-cyclodextrin

Jeetendra Singh Negi  1 , Shivpal Singh
Affiliations

Spectroscopic investigation on the inclusion complex formation between amisulpride and γ-cyclodextrin

Jeetendra Singh Negi et al. Carbohydr Polym. .

Abstract

The purpose of this research was to investigate inclusion complex formation between poorly soluble drug amisulpride (AMI) and γ-cyclodextrin (γ-CD). The solubility of AMI was enhanced by formation of inclusion complex of AMI with nano-hydrophobic cavity of γ-CD. The stoichiometry of inclusion complex was studied by continuous variation Job's plot method and found 1:1. The binding constant was found 1166.65 M(-1) by Benesi-Hildebrand plot. The molecular docking of AMI and γ-CD was done to investigate complexation. The inclusion complex formation was further confirmed by (1)H NMR and FT-IR, DSC and XRD analysis. The solubility of AMI was increased 3.74 times after inclusion complex formation with γ-CD.

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