Abstract
Over the past 2 decades, natural polysaccharides have been drawing attention from biomedical and drug delivery researchers for their availability, low cost, excellent biocompatibility, low toxicity, design flexibility, green fabricability, and biodegradability. Cashew gum obtained from cashew tree stem exudate has been explored in a variety of drug delivery systems including multiunit beads, microbeads, microparticles, nanoparticles, micelles, tablets, pH-responsive devices, bioactive film, transdermal patches, macro- and microemulsions, etc., and different biomedical scaffolds for tissue engineering and wound healing. These investigations have established a wide potential scope of cashew gum as a safe and promising drug delivery, pharmaceutical, and biomedical excipient. This chapter reviews the collection of crude cashew gum, and its extraction, purification, chemical structure, and applications in the fabrication of various micro- and nanostructured drug delivery and biomedical devices.
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