Hydrogels as intelligent materials: A brief review of synthesis, properties and applications

Hydrogels are a unique class of three dimensional cross-linked polymeric networks that can hold a large fraction of aqueous solvents and biological fluids within their structures. Nowadays, hydrogelshave attracted a growing interest of many scientists in different fields of research. Intelligent hydrogels have found a significant role in a wide variety of applications such as drug deliverysystems, tissue engineering, optics, diagnostics and imaging. The purpose of this paper is to present a brief review on the basis concept of hydrogels, the description about classification, synthesismethods, stimulation situations, relevant mechanisms, and applications.

Overview of the six different groups of hydrogels based on criteria like physical structure and size
Classification of Hydrogels

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