Research

Spraying water-soluble particles on the crop. 作物に水溶性微粒子を散布した実験

Short Introductions of /our papers/ Komatsuna plants were grown and exposed to ammonium sulfate (((NH4)2SO4), AS) submicron particles for 16 days (22.5 µg m−3 per day) in phytotrons. The amount of particles deposited on the leaf  decreased over time, because AS particles deposited on the leaf deliquesced, allowing ions such as SO42− in the solution… Continue reading Spraying water-soluble particles on the crop. 作物に水溶性微粒子を散布した実験

International, News, Research

A doctoral student presented in Asian Aerosol Conference 2017 (Jeju, Korea)博士学生が韓国で発表した。

Presenter: F. Faizal (Doctoral student), Co-author: S. Yokote (Master-student), M. P. Khairunnisa (former doctoral student, now with Ministry of Higher Education, Malaysia), W. Lenggoro "Direct- and Electrospray-Depositions of Particles Derived from Burning Candles" DATE: JULY 2 - 6, 2017,  VENUE: ICC JEJU, JEJU, KOREA * Presentation by student >> LIST      

News, Topic

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

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).. 著者:畠山史郎(農工大教授)、野口恒(ジャーナリスト) 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 :::

Research

PAPER: Charge of Particle by Kelvin Probe Force Microscopy. ケルビンフォース顕微鏡で粒子の帯電を計測

Other "intro" of papers from our lab >> /tag/paper/ A collaborated study with Dr. Okuda group at Keio University. エアロゾル研究 Vol. 30 (2015) No. 3 p. 190-197 (Journal of Aerosol Research) doi.org/ | ResearchGate Kelvin Probe Force Microscopyを用いたエアロゾル個別粒子の帯電状態の測定 Measurement of the Electrostatic Charging State of Individual Particles in Ambient Aerosol Using Kelvin Probe Force Microscopy (Okuda, Gunji, Lenggoro)  … Continue reading PAPER: Charge of Particle by Kelvin Probe Force Microscopy. ケルビンフォース顕微鏡で粒子の帯電を計測

International, News, Research, Topic

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

OPE 11 Nov. 2015. BEST PAPER AWARD, 2nd International Conference on Purity, Utility Reaction and Environmental Research (PURE 2015), Kuala Lumpur. “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*) ... (乾電池を用いた高電圧変換器を駆使し、携帯性に優れた、大気中微粒子捕集器の開発):各地のPM2.5またはPM1.0の解析に役にたつ Full paper : Journal of Purity,… Continue reading BEST PAPER AWARD at International Conference (PURE 2015, Malaysia)最優秀論文賞

Research

Between Charged Aerosol Particles & Substrate’s Hydrophilicity.(新発見)正帯電した気中浮遊粒子が親水性が高い表面に付きやすい現象

Area-selective deposition of charged particles derived from colloidal aerosol droplets on a surface with different hydrophilic levels...J. Aerosol Science. (a work by Kusdianto (Doctoral student, now with ITS, Indonesia), and Gen (Doctoral student, joined Tohoku Univ. then City Univ. Hong Kong) Highlights * Charged aerosol particles were derived from spraying colloidal droplets. * Substrate with… Continue reading Between Charged Aerosol Particles & Substrate’s Hydrophilicity.(新発見)正帯電した気中浮遊粒子が親水性が高い表面に付きやすい現象

Event, People, Research

Kusdianto, Doctoral presentation, 19 Aug. 2014, 博士論文公聴会

19 Aug. 2014. BASE 1st floor meeting room DOCTORAL THESIS: The role of chemical and physical properties of substrate in the deposition of particles 粒子の沈着における基板表面の物理的・化学的特性の役割 by KUSDIANTO (Also a faculty member of Department of Chemical Engineering, Institut Teknologi Sepuluh Nopember, ITS) PUBLICATIONS Area-selective deposition of charged particles derived from colloidal aerosol droplets on a surface… Continue reading Kusdianto, Doctoral presentation, 19 Aug. 2014, 博士論文公聴会

News, Research

Are the particles deposited to the back of a sheet? 薄板の裏側まで微粒子が沈着するのか?

Simultaneous deposition of submicron aerosols onto both surfaces of a plate substrate by electrostatic forces M. Gen, S. Ikawa, S. Sagawa, I. W. Lenggoro e-Journal of Surface Science and Nanotechnology, 2014. http://dx.doi.org/10.1380/ejssnt.2014.238 Open access. サブミクロンの帯電粒子を気中に浮遊させて、目的の平板の両面に粒子群が沈着しているメカニズムを説明した。 【展開】植物の葉に沈着する微粒子の挙動(農薬等の散布法)の理解 【展開】自動車等の静電塗装の分野

Research

3 students presented at 2 conferences, 学生の学会発表

2014.March, Gifu 化学工学会年会 Annual Conference of Society of Chemical Engineers, Japan Surface characterization of organic thin film based on particle assembly (Oral) 微粒子の集積による有機薄膜の表面解析 (D3) 玄 大雄・Wuled Lenggoro Keywords: Coating, Nanoparticle, Aerosol http://www3.scej.org/meeting/79a/ 2014.March, Gifu 化学工学会年会 Annual Conference of Society of Chemical Engineers, Japan Immobilization and concentration control of fine particles in agar matrix by electrophoresis… Continue reading 3 students presented at 2 conferences, 学生の学会発表

News

2013 Kanji Takahashi Award for our paper, 高橋幹二賞

2013 Kanji Takahashi Award (from Japan Association of Aerosol Science and Technology) for our paper published in 2011: Measurement of Model Aerosols Containing Two Metal Components Formed via Cooling and Dilution Routes, Authors: Naoya HAMA, Yukie TAKASHIMA, Masao GEN, Mayumi TSUKADA, Hidehiro KAMIYA and Wuled LENGGORO* Journal of Aerosol Research, エアロゾル研究, 26, 277-285 (2011) For… Continue reading 2013 Kanji Takahashi Award for our paper, 高橋幹二賞

Research

PAPER. Visualization of particles on the leaves in trees, 葉面上の粒子の可視化

ARTICLE: Visualization of artificially deposited submicron-sized aerosol particles on the surfaces of leaves and needles in trees 植物(樹木)の葉表面に任意的に微粒子を沈着し、その「可視化」技術に関する研究成果。 Authors: K. Yamane, S. Nakaba, M. Yamaguchi, K. Kuroda, Y. Sano, I. W. Lenggoro, T. Izuta, R. Funada Journal: Asian Journal of Atmospheric Environment. For PDF: http://asianjae.org/browse_sub.html?class_no2=30 Authors' Affiliations 1) Faculty of Agriculture, Tokyo University of Agriculture and… Continue reading PAPER. Visualization of particles on the leaves in trees, 葉面上の粒子の可視化

News, Research, Topic

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

PRESENTATION: Research with collaborators. at 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) 1B1139 ブナ、スダジイ、カラマツおよびスギに対する硫酸アンモニウム粒子の影響に関する実験的研究 ・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)… Continue reading Present at Jpn. Soc. Atmospheric Environment (13 Sep.), 植物成長 vs. 酸性粒子

News, Research, Topic

Present at Aerosol Conference (Fukuoka, 28 Aug.)葉面の粒子, 粒子の生成方法と計測方法

-- By STUDENTS -- 2012/08/28, Fukuoka, 第29回エアロゾル科学・技術研究討論会 Hygroscopic behavior of inorganic particles deposited on solid surfaces (固体基板に沈着した無機物粒子の吸湿挙動の評価) (M2)Akito Seki, (D1) Erika Herliana, (D1) Masao Gen, W. Lenggoro 2012/08/28, Fukuoka, 第29回エアロゾル科学・技術研究討論会 D06.広範囲の粒径分布をもつ粒子発生システムとその安定性に関する検討 Investigation of the particle generation technique for flat number-size distribution (D3)井川誠司, Wuled Lenggoro -- From COLLABORATOR -- B08* 樹木葉面に暴露した硫酸アンモニウム粒子の可視化 Visualization of the surface of… Continue reading Present at Aerosol Conference (Fukuoka, 28 Aug.)葉面の粒子, 粒子の生成方法と計測方法

Event, News

Presented in Asian Particle Technology Symposium 2012, Singapore

Lenggoro and Gen (doctoral student) presented two papers in 5th Asian Particle Technology Symposium, Singapore 3-5 July 2012 Proceedings in USB-memory, ISBN: 978-981-07-2518-1 172: Oral: Assembly of Gas-Phase Nanoparticles on a Structural Substrate for Spectroscopic-Based Sensor to Detect a Pesticide Masao Gen*, Hideo Kakuta, Yoshihito Kamimoto, Wuled Lenggoro 銀ナノ粒子のエアロゾル集積によりセンサーを作製し、ラマン分光法との組み合わせを駆使して、現場(農場)における残留農薬の計測を試みた。(博士課程後期の玄にとっては初めての国際会議で口頭発表でした) 122: Oral: A Chamber System with Aerosol Generators… Continue reading Presented in Asian Particle Technology Symposium 2012, Singapore

Research, Topic

Open article: Transport and assembly of particles, 粒子の輸送と集積化

Open article: TRANSPORT AND ASSEMBLY OF LIQUID-PHASE NANOPARTICLES VIA GAS-PHASE (in pdf) An open article, by Wuled Lenggoro (2008, 2009) * Possible applications - For Environment & Energy: Selective-deposition method for liquid-phase nanoparticle - For Healthcare - Measuring the non-spherical nanoparticles in the gas-phase * Potential impact on the environment : - Development of the… Continue reading Open article: Transport and assembly of particles, 粒子の輸送と集積化