植物が主役の研究で、新しい工学的手掛かりを得る The plant-driven research provides new engineering clues.


Japan-Indonesia International Scientific Conference 日本語は英語の後に続きます。

Wuled Lenggoro: Transforming a Particle Engineering Lab: From “Fast” Electronic Materials to “Slow” Agricultural Studies.  >> Abstract(PDF)

Japanese companies are becoming more dependent on universities for basic research. Materials processing and particle technology are my areas of expertise. While working for around 9 years at Hiroshima University, our research group (led by a Japanese professor) collaborated with more than 20 companies on projects related to functional materials (e.g., for LEDs or batteries) with particle sizes between ~10 nanometer and 1 micrometer. The collaborative speeds were “fast” because most of the companies use a quarterly system. This speed sometimes influences the learning style of graduate students who perform the related experiments. An advisor’s micromanagement to maintain a “fast” schedule can cause students to have few opportunities to learn how to deal with failure. In the case of engineering systems, the researchers can play the role of the “core” of the project. We preferred to design laminar flow reactors (chambers) with well-controlled temperature gradients to obtain homogeneous products. Besides developing production processes, we discovered a water-based ion cluster (a commercialized product that became a long-term bestseller), thanks to sophisticated measuring tools and serendipity.

When I started a research group at TUAT (2007), I stopped all joint research with companies that had formed in Hiroshima and set a new direction. The turning point in my group’s target-setting occurred in the first year. Because our target size was similar to the size range of air pollutants, I co-initiated a project on “particles & plants” (2008-2013), together with colleagues at the school of agriculture. With graduate students, I designed a chamber for growing plants and realized that the “core” of the project was the plant, not the researchers. Daily experiments were performed for almost two years. The plants grew from 10 to 200 cm. Heterogeneous leaf surfaces and an air-conditioned (24 h) chamber created “turbulence” points. Prediction of the material flow was difficult, even though a 3D fluid dynamics simulation was also performed. Through agricultural projects, we learn much about “risk” before designing and also while running the experiments, and we obtain engineering clues from plant systems. After we modeled the interaction between “dynamic” airborne particles and “static” leaf surfaces, we expanded our studies to develop a sensor system for on-site detection of pesticides (including those on dead honey bees) and a low-cost particle collector for remote areas. The speed of agricultural research was “slow”. There were no personal obstacles like nationalism. An “organic” interdisciplinary project is a good medium for engineering students to learn a system in micro- and macro-scales and to consider the “good” and “bad” sides of the matter.   Keywords: Environment, Global Issues, Materials Flow






(Photographs were provided by the Organizing Committee)


In commemoration of 60th year anniversary of Indonesia and Japan relationship, this conference will bring together Indonesian and Japanese researchers to promote stronger friendship through science and technology. Scientific program was comprising oral sessions with talks from Engineering, Life Sciences and Social Sciences, multiple poster sessions,…

Thanks specially to Prof. Eiichiro Fukusaki and Assist. Prof. Dr. Sastia Prama Putri (Chair of the Local and Scientific Organizing Committee, Department of Biotechnology, Graduate School of Engineering, Osaka University, Japan)

Plenary Speakers

  • Dr. Yanuar Nugroho, Deputy Chief of Staff Executive Office of the President Republic of Indonesia
  • Prof. Dr. Ir. Muhammad Anis, M.Met., Rector of Universitas Indonesia
  • Prof. Genta Kawahara, Executive Vice President of Global Engagement and Student Support, Osaka University, Japan
  • Prof. Eiichiro Fukusaki, Department of Biotechnology, Graduate School of Engineering, Osaka University, Japan

Keynote Speakers

  • Prof. Made Astawan, Bogor Agricultural University (IPB), Indonesia
  • Prof. I Nyoman Pugeg Aryantha, Bandung Institute of Technology (ITB), Indonesia
  • Dr. Neni Nurainy, Biofarma, Indonesia
  • Prof. Sulfikar Amir, Nanyang Technological University, Singapore
  • Prof. Wuled Lenggoro, Tokyo University of Agriculture and Technology, Japan
  • Prof. Zulfran Tadjoeddin, Western Sydney University, Australia

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