Category Archives: Topic

TUAT: Japan’s second “most-productive” university in terms of “Number of papers per academic-staff”. 教員あたりの学術論文数が国内2位(農工大)

Tokyo University of Agriculture and Technology (TUAT) is a university with many “high-research-producers”. The university has about 400 academic-staffs.

Japan’s second “most-productive” university in terms of “Number of papers per academic-staff”

UK-based QS announced the QS Asian University ranking 2018 (Oct. 2017), and TUAT ranked as the top 1% of universities in Asia. In particular, it became the second place in Japan as “the number of papers per academic-staff” which is an indicator of “research power”. Continue reading TUAT: Japan’s second “most-productive” university in terms of “Number of papers per academic-staff”. 教員あたりの学術論文数が国内2位(農工大)

A book on “air pollution” matter. PM2.5の科学(畠山史郎、野口恒, 2016)

A book on PM2.5 (by S. Hatakeyama and H. Noguchi) 2016
The last page

Wuled Lenggoro contributed on making the “first-connect” between two authors (Shiro Hatakeyama, a well-known professor of PM2.5 and Hisashi Noguchi, a Journalist). Published by Nikkan Kogyo Shinbun (2016)..


大気中に浮遊する粒子状物質(Particulate Matter)のうち、粒径が2.5 µm以下のものを指します。

Amazon website::: Nikkan Bookstore :::

BEST PAPER AWARD at International Conference (PURE 2015, Malaysia)最優秀論文賞


11 Nov. 2015. BEST PAPER AWARD, 2nd International Conference on Purity, Utility Reaction and Environmental Research (PURE 2015), Kuala Lumpur.12265664_1658963404361849_7010463302459411147_o
“Development of a battery-driven passive sampling system for electrostatically trapping atmospheric particles”
(M. P. Khairunnisa, F. Faizal, H. Fukushima, M. Gen, P. Widiatmoko, I. W. Lenggoro*)



Full paper : Journal of Purity, Utility Reaction and Environment, 5(2), 43-50 (2016.Apr)

Open Access:


The related study was also honored as BEST POSTER AWARD during 12th Forum of Young Association of JAAST (Japan Association of Aerosol Science and Technology) 第12回エアロゾル若手フォーラム 2015/10/14 (Keio Univ.)

“A battery- and electrostatic-driven system for sampling suspended particles on a substrate”
(M. P. Khairunnisa, Ferry Faizal, Hisako Fukushima, Masao Gen*, Pramujo Widiatmoko**, I. Wuled Lenggoro)
Tokyo University of Agriculture and Technology; *Tohoku University; **Institut Teknologi Bandung.


Our Lab Introduction by TAMA, 首都圏産業活性化協会

Introduction of a research topic from our Lab,
by Tama Industrial Activation Association. (社)首都圏産業活性化協会
Greater Tokyo Initiative TAMA Industrial Vitalization Association Inc.
(TAMA = Technology Advanced Metropolitan Area)

基板や植物に気中の微粒子を集積させます (in PDF)


PAPER: Thermal stability of magnetite particles made by an electrochemical method, 電気化学法で合成した磁気粒子の熱安定性

JOURNAL: Advanced Powder Technology, Available online 3 December 2012.


For product’s durability (lifespan)
= To be durable and long‑lasting…

Thermal stability of silica-coated magnetite nanoparticles prepared by an electrochemical method
Fauziatul Fajaroh, Heru Setyawan, Adrian Nur, I. Wuled Lenggoro
– Department of Chemistry, Faculty of Mathematics and Natural Science, Malang State University, Malang, Indonesia
– Department of Chemical Engineering, Faculty of Industrial Technology, Sepuluh Nopember Institute of Technology (ITS), Surabaya, Indonesia.
– Graduate School of Bio-Applications and Systems Engineering, Tokyo University of Agriculture and Technology, Tokyo, Japan


Magnetite nanoparticles have been prepared by electrooxidation of iron in water. Surface modifications have been conducted by coating the nanoparticles with silica by a one-step synthesis in dilute sodium silicate solution. The mean size of particles was approximately 10–30 nm for the uncoated particles and 9–12 nm for the coated particles. The results obtained from thermal gravimetric/differential thermal analysis (TG/DTA) revealed that the silica layer formed by the electrochemical method was stable and could serve as a protective layer. Annealing the nanoparticles at 550 °C converts magnetite into maghemite for the silica-coated particles, and it further converts the uncoated particles into hematite. The conversions cause the saturation magnetization to decrease for all samples.

files-folderRecent topics/published articles: 最近の論文概要・トピックス

PAPER. Deposition process of particles in forests, 森林への大気中微粒子の沈着過程

>;>;>; Other topics from recent papers

Deposition process of sulfate and elemental carbon in Japanese and Thai forests.

JOURNAL: Asian Journal of Atmospheric Environment, no. 6 (2012)

Sase, H, Matsuda, K, Visaratana, T, Garivait, H, Yamashita, N, Kietvuttinon, B, Hongthong, B, Luangjame, J, Khummongkol, P, Shindo, J, Endo, T, Sato, K, Uchiyama, S, Miyazawa, M, Nakata, M, Lenggoro, I. W.

For PDF:

The first author:
Hiroyuki SASE, Ph.D.
Department Head, Ecological Impact Research Department,
Asia Center for Air Pollution Research (ACAP)
Japan Environmental Sanitation Center (JESC), Niigata 950-2144, Japan

AUTHORS are from:
1 Asia Center for Air Pollution Research (ACAP), Japan Environmental Sanitation Center, 1182 Sowa, Nishi-ku, Niigata 950-2144, Japan
2 School of Sciences and Engineering, Meisei University, 2-1-1 Hodokubo, Hino, Tokyo 191-8506, Japan
3 Royal Forest Department, 61 Phaholyothin Road, Bangkok 10900, Thailand
4 Environmental Research and Training Centre, Department of Environmental Quality Promotion Technopolis, Klong 5, Klong Luang Pathumthani 12120, Thailand
5 King Mongkut’s University of Technology Thonburi, 240 Pracha U-thit Road Bangmod, Thungkru, Bangkok 10140, Thailand
6 National Institute for Agro-Environmental Sciences, 3-1-3 Kannondai, Tsukuba 305-8604, Japan
7 East Branch Office, Japan Environmental Sanitation Center, 10-6 Yotsuya-kamicho, Kawasaki-ku, Kawasaki, Kanagawa 210-0828, Japan
8 Niigata University, 8050 Ikarashi 2-no-cho, Nishi-ku, Niigata 950-2181, Japan
9 Tokyo University of Agriculture and Technology, Koganei, Tokyo 184-8588, Japan

Our project:
Elucidation of the Effects of Aerosol on Plants

Other review articles:
環境省: 粒子状物質の特性に関する知見の整理.pdf
2004 article (in Japanese):

Present at Jpn. Soc. Atmospheric Environment (13 Sep.), 植物成長 vs. 酸性粒子

PRESENTATION: Research with collaborators.
53rd Annual Conference of Japan Society for Atmospheric Environment

Experimental study on the influences of ammonium sulfate aerosol particles on four types of plants (in Japanese)

第 53 回大気環境学会年会 (2012年9月12-14日横浜)

・山口 真弘・大谷 葉子・竹田 健太・李 ホ ツゼン・長尾 宙・(M2)関 明人・半 智史・山根 健一(東京農工大学)
・矢崎 健一・野口 享太郎・黒田 克史(森林総合研究所)
・佐野 雄三(北海道大学)
・Wuled Lenggoro(東京農工大学)
・石田 厚(京都大学)
・船田 良・伊豆田 猛(東京農工大学)

Contribution from our group, by Seki (M2) and Lenggoro

Recent topics of published journal articles,最近の発表論文の概要…