Gas marbles: ultra-long-lasting and ultra-robust bubbles formed by particle stabilization  

作　　者：Xuxin Zhao Kunling Yang Zhou Liu Ho Cheung Shum Tiantian Kong 

机构地区：[1]College of Chemistry and Environmental Engineering,Shenzhen University,Shenzhen 518000,China [2]Department of Mechanical Engineering,University of Hong Kong,Hong Kong,China [3]Advanced Biomedical Instrumentation Centre,Hong Kong,China [4]Department of Biomedical Engineering,School of Medicine,Shenzhen University,Shenzhen 518000,China [5]Department of Urology,The Institute of Translational Medicine,The First Affiliated Hospital of Shenzhen University,Shenzhen Second People’s Hospital,Shenzhen 518000,China

出　　处：《Frontiers of Chemical Science and Engineering》2022年第11期1681-1687,共7页化学科学与工程前沿（英文版）

基　　金：This work was supported by the National Natural Science Foundation of China(Grant Nos.22078197 and 52172283);the Natural Science Foundation of Guangdong Province(Grant No.2021A1515012506).

摘　　要：Bubbles and foams are ubiquitous in daily life and industrial processes.Studying their dynamic behaviors is of key importance for foam manufacturing processes in food packaging,cosmetics and pharmaceuticals.Bare bubbles are inherently fragile and transient;enhancing their robustness and shelf lives is an ongoing challenge.Their rupture can be attributed to liquid evaporation,thin film drainage and the nuclei of environmental dust.Inspired by particle-stabilized interfaces in Pickering emulsions,armored bubbles and liquid marble,bubbles are protected by an enclosed particle-entrapping liquid thin film,and the resultant soft object is termed gas marble.The gas marble exhibits mechanical strength orders of magnitude higher than that of soap bubbles when subjected to overpressure and underpressure,owing to the compact particle monolayer straddling the surface liquid film.By using a water-absorbent glycerol solution,the resulting gas marble can persist for 465 d in normal atmospheric settings.This particle-stabilizing approach not only has practical implications for foam manufacturing processes but also can inspire the new design and fabrication of functional biomaterials and biomedicines.

关 键 词：BUBBLE particles interfaces armored bubble liquid marble gas marble Pickering emulsion 

分 类 号：O6[理学—化学]