Chitosan is a naturally occurring amino polysaccharide obtained by deacetylation of chitin
and is second most commonly used natural polymer. Its non-toxic, biocompatibility and …

Mucoadhesive drug delivery systems are desirable as they can increase the residence time
of drugs at the site of absorption/action, provide sustained drug release and minimize the …

Chitosan is a promising biopolymer for drug delivery systems. Because of its beneficial
properties, chitosan is widely used in biomedical and pharmaceutical fields. In this review …

As nanocarriers (NCs) can improve the solubility of drugs, prevent their degradation by
gastrointestinal (GI) enzymes and promote their transport across the mucus gel layer and …

Within the past 20years, a considerable amount of work has been published on chitosan
and its potential use in drug delivery systems. In contrast to all other polysaccharides having …

Chitosan is a linear polysaccharide composed of randomly distributed β-(1-4)-linked d-
glucosamine and N-acetyl-d-glucosamine. It is one of the major cationic polymers and the …

Chitosan (CS), a cationic polysaccharide, is widely regarded as a safe and efficient intestinal
absorption enhancer of therapeutic macromolecules, owing to its inherent mucoadhesive …

Various properties of chitosan can be customized by thiolation for very specific needs in a
wide range of application areas. Since the discovery of thiolated chitosans, many studies …

Colon-targeted drug delivery systems is an active area of research that is designed to
selectively release the drug in the colonic environment to enhance the oral delivery of active …

Gene delivery can particularly be used for the treatment of diseases by the insertion of
genetic materials (DNA and RNA) into mammalian cells either to express new proteins or to …