ENHANCEMENT OF SOLUBILITY BY COMPLEXATION WITH CYCLODEXTRIN AND NANOCRYSTALLISATION
Journal Title: International Research Journal of Pharmacy (IRJP) - Year 2012, Vol 3, Issue 5
Abstract
The cyclodextrins have a wide range of applications in different areas of drug delivery and pharmaceutical industry due to their complexation ability and other versatile characteristics. The most common pharmaceutical application of cyclodextrin is to enhance the solubility, stability, safety and bioavailability of drug molecules. The purpose of this review is to discuss and summarize some of the findings and applications of cyclodextrin (CD) and their derivatives indifferent areas of drug delivery. This article highlights the molecular structure, properties like complexation, solubility etc. of cyclodextrins and focuses on its use for parenteral, oral, ophthalmic and nasal drug delivery. Other routes including dermal, rectal, sublingual and pulmonary delivery are also briefly addressed. The objective of this contribution is to focus on the potential use of chemically modified cyclodextrins as high-performance drug carriers in drug delivery systems with emphasis on the more recent developments. Thus cyclodextrins, because of their continuing ability to find several novel applications in drug delivery, are expected to solve many problems associated with the delivery of different novel drugs through different delivery routes. The nanocrystallization is defined as a way of diminishing drug particles to the size range of 1-1000 nanometers. There are two distinct methods used for producing nanocrystals; ’bottom-up’ and ’top-down’ development. The top-down methods (i.e. Milling and High pressure homogenization) start milling down from macroscopic level, e.g. from a powder that is micron sized. In bottom-up methods (i.e. Precipitation and Cryo-vacuum method), nanoscale materials are chemically composed from atomic and molecular components.
Authors and Affiliations
Hiral Mehta , Akhilesh D. , Prabhakara P. , J. V Kamath
Keywords
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