Hydrogels Essay

Injectable Hydrogels: Processing and Application

Introduction

Hydrogels are defined as networks made up of polymer chains which are hydrophilic. They are in some cases found as a solid dispersed in a liquid. where water acts as the medium dispersed. Hydrogels are natural, highly porous or artificial polymeric networks. The hydrophilic structure allows hydrogels to hold the significant amount of water within their three-dimension structural systems. The extensive employment of hydrogel products in some environmental and industrial areas of applications are very high importance. As time passed, natural hydrogels were replaced with artificial ones. This was due to their long service life, the wide variety of the raw chemical resources, high capacity of water absorption, and their stability. Artificial polymers have structures that are well defined and can be modified to produce tailor powerful functionality and degradability. The artificial of hydrogels can also occur from purely artificial components. The artificial hydrogels are stable in conditions of high and sharp temperature fluctuations. Recent research describes hydrogels as a two- or multi-component systems that are made of three-dimensional

Comprehensive research has been carried out on it as a macromolecular carrier for proteins or drugs delivery for the application of biomedical medicine. Inform of its architecture, the hydroxyl groups attached to dextran’s main chain make it possible to undergo oxidation with periodate to give an entry made up of multiple aldehyde groups, which serves as the polymer cross-linker for free amino group-bearing polymers to form the hydrogels. Therefore,. Gelatin hydrogel is characterized by rapid solubilization when in an environment that is aqueous and easily melts within the range of body temperature, hence limiting its potential in the area of biomedical