Synthesis of hydrogel beads for disaster relief applications

Abstract

In regions that are disaster ridden, the distribution of potable water has always been an issue due to the lack of accessibility, technical support and electrical power. A water purification method that is easy-to-use, portable and able to be distributed to the public with minimal response time and logistics would be an economical and practical solution in times of a disaster. Hydrogel beads present a possible way to provide pathogen-free water to disaster victims rapidly. This research focuses on the synthesis of hydrogel beads that would be suitable for disaster relief applications. Alginate was employed as a key material due to its unique properties that include good biocompatibility, non-toxicity, biodegradability as well as the capability to undergo gelation in aqueous solution at room temperature.