Sustainable Standardization Strategy Unit

Principal Investigator（PI）: Dr. Yoshikatsu Ueda and Dr. Yuto Nakagami

Collaborators：

• Prof. Wen Zhang  (Visiting Foreign Scholar, New Jersey Institute of Technology),
• Dr. Chen Yi  (Visiting Researcher, Chengdu University of Technology),
• Yu Dong  (Visiting Researcher, Chengdu University of Technology)

The Sustainable Standardization Strategy Unit aims to promote interdisciplinary and transdisciplinary collaborative research within Humanosphere Science by leveraging international standardization. International standards, developed through the International

 The Organization for Standardization (ISO),  serves as an essential tool for systematically sharing research outcomes and knowledge globally, fostering universally recognized scientific values.

This unit specifically focuses on the Fine Bubble technology area (ISO/TC281), working collaboratively with industries and researchers from multiple countries. Efforts include establishing an international standardized database for Fine Bubble measurement data and proposing new standardization topics.

Additionally, the unit examines a broad spectrum of research topics pursued by Kyoto University’s Research Institute for Sustainable Humanosphere, exploring their potential from an international standardization perspective. The overarching goal is to contribute meaningfully to the global advancement of Humanosphere Science.

Research

• Elucidation of Fundamental Characteristics through Precise Measurement of Ultra Fine Bubbles
• Development of Real-Time Motion Tracking for Environmental Radioactivity Walking Surveys with KURAMA-II
• Development of water treatment system using plasma and fine bubble
• Fine Bubble Water for Environmental treatment: Investigating Sterilization and Cleaning Mechanisms
• Degradation of waste plastics by the combination of microorganisms and physicochemical pretreatments

Academic and Standardization Achievements

Systematization of fine bubble evaluation methods based on ISO standards

Reproducibility assessment of electrical behavior and development of measurement protocols

Establishment of an international collaborative research network

Publications and Activities

Book

Yoshikatsu Ueda: Fundamentals, Production, Evaluation, Commercialization, and Application Technologies of Fine Bubbles Defined by ISO (Chapters 3 & 4), Joho Kiko Publishing, 2025.

International Conferences (Invited/Keynote Lectures)

Electrical Behavior and Functional Pathways of Submicron-Scale Bubbles in Practical Applications,
The 2nd National Conference on Micro- and Nanobubbles, Chinese Society of Particuology, November 8, 2025, China

Recent Progress in Fine Bubble Studies at Kyoto University,
Invited Lecture at Tongji University, October 31, 2025, China

Evaluation of the Electrical Behavior of Fine and Ultrafine Bubbles in Aqueous Systems,
The 3rd International Workshop on Applications of Fine and Ultrafine Bubbles, September 12, 2025, Japan

Assessment of the Electrical Properties of Fine Bubbles and Their Applicability to Wetland Technologies,
International Conference on Wetland Research, August 21, 2025, Korea

Basic and Applied Studies of Fine Bubbles in Japan,
Indian Institute of Technology Ropar, April 15, 2025, India

Domestic Conferences

Sustainable Humanosphere Science and Standardization,
Japan Society for Research Policy and Innovation Management, 2025

Outlook of Unit Activities,
IVS2025 Side Event, 2025

Organized Conferences and Seminars

Japan–U.S. Fine Bubble Seminar 2025

Japan–India Fine Bubble Research Seminar 2025

Symposia Organized

• Nanobubble2024 International Conference (533rd Humanosphere Symposium)
• 6th Plasma & Fine Bubble Research Meeting (541st Humanosphere Symposium)
• 4th Fukushima Prefecture Support Initiatives and Radiation Mapping Research Meeting (538th Humanosphere Symposium)

Courses

• ILAS (Kyoto University Institute for Advanced Study) Seminar

Seminars/Lectures

• RISH Seminar (Online)
  • 2025/1/8
  • Elucidating the Interaction Forces Between Surface Nanobubbles and Nanoparticles

• Outreach Lecture
  • Kyoto Prefectural Board of Education
  • Kyoto Prefectural Otokuni High School, 2024/12/9

• International Activities
  • Lecture at Tongji University and East China University of Science and Technology (China)
  • Lectures at National Yang Ming Chiao Tung University and National Taiwan University (Taiwan)
  • Lecture at Academia Sinica (Taiwan)
  • Lecture at New Jersey Institute of Technology (USA)
  • ISO/TC281 meeting (USA, Korea, Online)

• After-School Care Center: Kyoto University Kids Community (KuSuKu)