2017 年 31 巻 4 号 p. 375-381
Microbubbles are the bubbles of one to several hundred micrometers in diameter. Depending on the work field, their sizes are less than 100 μm for bioactivity. The microbubble technology has become more and more popular in many fields of science and engineering since its birth in “The Japan Kosen Association for College of Technology” in 1997. Recently, a considerable number of studies have been conducted on the effect of microbubbles on the environmental, industrial, food and medical fields. However, the basic characteristics and efficient application methods of microbubbles remain unclear. In this paper, the basic knowledge for the use of microbubbles in a variety of practical applications is indicated.