A short review on chitosan and gelatin-based hydrogel composite polymers for wound healing.

This review focuses on the modification of chitosan and gelatin-based hydrogel composite polymers for wound healing. First, the mechanical properties of several nanocomposite polymer hydrogels are compared based on water content, tensile strength, toughness and tensile strain. Furthermore, key findings on several modification techniques of the mechanical properties of chitosan are summarized.

Microneedle-Based Natural Polysaccharide for Drug Delivery Systems (DDS): Progress and Challenges.

In this focused progress review, the most widely accepted methods of transdermal drug delivery are hypodermic needles, transdermal patches and topical creams. However, microneedles (MNs) (or microneedle arrays) are low-invasive 3D biomedical constructs that bypass the skin barrier and produce systemic and localized pharmacological effects. In the past, biomaterials such as carbohydrates, due to their physicochemical properties, have been extensively used to manufacture microneedles (MNs).

Natural Polymeric Scaffolds for Tissue Engineering Applications.

Natural polymeric scaffolds can be used for tissue engineering applications such as cell delivery and cell-free supporting of native tissues. This is because of their desirable properties such as; high biocompatibility, tunable mechanical strength and conductivity, large surface area, porous- and extracellular matrix (ECM)-mimicked structures. Specifically, their less toxicity and biocompatibility makes them suitable for several tissue engineering applications.