A Facile Fabrication of Alginate Microbubbles Using a Gas Foaming Reaction

作者:Huang Keng Shiang; Lin Yung Sheng; Chang Wan Ru; Wang Yi Ling; Yang Chih Hui*
来源:Molecules, 2013, 18(8): 9594-9602.
DOI:10.3390/molecules18089594

摘要

Microbubble particles have been extensively utilized as temporal templates for various biomedical applications. This study proposes a facile strategy to obtain microbubble-containing alginate particles (i.e., microbubbles inside alginate gel particles, called alginate microbubbles). The chemical reaction of sodium bicarbonate and hydrogen peroxide to produce gaseous carbon dioxide and oxygen was utilized to form microbubbles within alginate particles. Uniform alginate particles were obtained by a stable needle-based droplet formation process. Kinetic reaction of gas formation was monitored for 2% alginate particles. The gas formation increased with the concentrations of sodium bicarbonate (1-5 wt%) and hydrogen peroxide (0-36.5 wt%).