Hydrogels are a class of biomaterial that can “take in” large quantities of aqueous
media and swells many times larger than its original size without dissolving in the media.
SPHs are a new generation of hydrogels containing a 3D network of cross-linked polymers
having pore size more than 100 μm as compared to 10 nm to 10 μm pores of conventional
gels. These are more complex in nature than conventional hydrogels and prepared
by using a suitable blend of monomers and different additives. SPHs have been extensively
employed in sustained and control drug delivery systems along with many recent
biomedical applications such as in tissue engineering, immunotherapy, arthritis and ophthalmic
drug delivery. Scientists are constantly working on improving the features and
properties of SPHs to enable them more suitable for therapeutic and biomedical applications.
The present study briefly reviews the composition, evaluation and applications of
SPHs in different areas. Applications are facilitated by the fact that SPHs are generally biocompatible
in nature and resemble natural living tissue more than any other class of synthetic
Keywords: Biocompatible polymers, biodegradable polymers, biomedical, polymer gels, superporous hydrogel,
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