Ultrafine bubbles (UFBs) are gas-filled bubbles having a diameter smaller than 1 mm. They are sometimes called bulk nanobubbles because the nanobubbles are not on a solid surface but inside a bulk liquid (water). UFBs have already been used in commercial processes such as cleaning and aquacultures. However, there are still many mysteries surrounding UFBs, such as mechanisms of stability, OH radical formation, and biological and medical effects. This is the first book on UFBs and it reviews researches done on them, which will be helpful for readers and researchers interested in the fundamentals of this emerging field and its applications, including cleaning, biological, medical, and dental application of ozone ultrafine bubble water.
Table of Contents
1. History of Ultrafine Bubbles
2. Introduction to Experiments
3. Micro and Ultrafine Bubbles Observed by Transmission Electron Microscopy Using Quick-Freeze Replica Technique
4. Real UFB Sample Measurements: A Few Cases
5. Theory of Ultrafine Bubbles
6. Study of Ultrafine Bubble Stabilization by Organic Material Adhesion
Kou Sugano, Yuichi Miyoshi, and Sachiko Inazato
7. Cleaning with Ultrafine Bubble Water
8. Biological Effects and Applications of Ultrafine Bubbles
9. Recent Trends on Application of Encapsulated Ultrafine Bubbles in Medicine
Katsuro Tachibana and Hiroshi Kida
10. Dental Application of Ozone Ultrafine Bubble Water
11. Preservability of Ultrafine Bubbles
Wataru Kanematsu, Toru Tuziuti, and Kyuichi Yasui
Koichi Terasaka is a professor at the Department of Applied Chemistry, Keio University, Japan. He is also chair of the Union of Fine Bubble Scientists and Engineers, director of the Fine Bubble Industries Association, and expert of ISO/TC 281 (fine bubble technology) committee. He is a chemical engineer who has been studying on bubble engineering since the 1980s and has recently been working on industrial application of ultrafine bubbles (UFBs).
Kyuichi Yasui is a senior research scientist at the National Institute of Advanced Industrial Science and Technology (AIST), Japan. He received his PhD from the Department of Physics, Waseda University, Japan, in 1996. His current research focuses on numerical simulations on UFBs and other topics in sonochemistry, sonoluminescence, acoustic cavitation, and nanocrystals
Wataru Kanematsu is a former principal research manager at AIST. He is involved in research on characterization of UFBs and UFB-containing liquid. Industrial standardization of characterization technology is another technical interest for him.
Nobuhiro Aya is a supervisory innovation coordinator at AIST. His scientific interests are focused mainly on fine bubbles and fine particles and also on methodological issues on combination and integration of various technologies and improvement of industrial/social usage of technologies. He is also the committee manager of the ISO/TC 281 (fine bubble technology) since its establishment in 2013.