Nano bubbles are bubbles smaller than the wavelength of light and remain stable in water. They are expected to have a wide range of applications in fields such as the environment and medicine. However, many aspects of their mechanism of action remain unknown, which have hindered technological development.
A research group of Prof. Masayoshi Takahashi has clarified the stabilization mechanism and mode of action of nanobubbles. In this study, using electron spin resonance and atomic force microscopy, they discovered that nanobubbles are spherical particles smaller than 50 nm that retain high energy inside. As unique effects of nano-bubbles, oxygen nano-bubbles exhibit bioactive effects on plants and animals, while ozone nano-bubbles possess strong bactericidal properties. This discovery has clarified the fundamental mechanism underlying the powerful bactericidal effects of nano-bubbles and has been highly evaluated.
The results were published in Langmuir on April 16, 2021.
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