Tag Archives: Exposure

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.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*)

award201511-nisa-malaysiaaward201511-nisa-malaysia-paper

(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, Utility Reaction and Environment, 5(2), 43-50 (2016.Apr)

Open Access:

Nisa-award-JAASTYoung2015

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.

研究室のこれまで:受賞歴.AWARD

Masao Gen: Doctoral presentation (5/23), 博士論文公聴会

Immobilization of submicron- and nano-particles from gas phase onto solid surfaces by external forces (外力を用いたサブミクロン粒子とナノ粒子の気相から固体基板への固定化)(Thesis is written in English)

2014/5/23 Friday, 15:00 ~ 16:30, BASE1階会議室

発表者: 玄 大雄 (GEN, Masao) **

** After working with WPI-AIMR, Tohoku University as Assistant Professor, he joined City University of Hong Kong

Keywords: Deposition/assembly of particles, Particle exposure system for plant growth chamber, Detector for residue pesticide
微粒子の表面沈着、植物用粒子曝露装置、残留農薬検出用のセンサ

genJJAP-image

===========================
GEN, MASAO (玄 大雄)
Dr.Eng. 博士(工学)
===========================
Graduated in June 2014, Doctor of Engineering,
Grad. School of Bio-Applications and Systems Engineering (BASE).
東京農工大学 大学院 生物システム応用科学府 博士課程

  • Doctoral course (from 2011/10-2014/6), 博士課程後期(短縮修了)
    (Primary Supervisor: Wuled Lenggoro)
  • Master course (2010/4-2011/9), 博士課程前期(短縮修了)
    Thesis : External force-assisted assembly of aerosol particles on a substrate
    外力を用いたエアロゾル粒子の固体基板への集積 (in English)
    (Primary Supervisor: Wuled Lenggoro)
  • Bachelor course (Department of Chemical Engineering, TUAT, 2006/4-2010/3)
    東京農工大学 工学部 化学システム工学科 卒業
    (Primary Supervisor: Wuled Lenggoro)
  • Visiting doctoral student at Universiti Putra Malaysia (June-July 2012)
    (Host: Prof. M. Pauzi Zakaria, Faculty of Environmental Studies
    and Dr. M. Nazli bin Naim, Department of Process and Food Engineering)
    Sponsor: TUAT/FOLENS program

================
HONORS/AWARDS
================
Iinoya Award 2013 for Masao Gen

2013: Iinoya Award (from JAAST)
Development of a portable sensor system based on aerosol particles to detect pesticide residues
エアロゾル粒子センサーを用いた携帯型残留農薬検出システムの開発
…more

2013: Kanji Takahashi Award from JAAST (As co-author),
Article published in Journal of Aerosol Research (Earozoru Kenkyu, 2011)
(Authors: Hama, Takashima, Gen, Tsukada, Kamiya, Lenggoro)

2013: Project leader of TUAT Innovation Organization Program Grant
“Development of a sensor system based to detect pesticide residues”
東京農工大学・イノベーション推進機構、企業実習研究プロジェクト、研究代表者
(文部科学省実践型研究リーダー養成事業 「ニーズ展開実践型高度研究人材養成モデル化事業」平成25年度プログラムの一環)

2012: TUAT FOLENS Program Travel Grant – for stay (30 days) Universiti Putra Malaysia. (FOLENS report)

2011: Certificate of Commendation from University (TUAT) president for work on “Design and fabrication of aerosol system for plants-growth chamber”. 農学府と連携した「粒子発生装置付き植物育成システム」に関する研究成果発表(APCChE-13)で学長からの表彰状。

2010: 13th Asia Pacific Confederation of Chemical Engineering (APCChE-13)
BEST POSTER PAPER AWARD (Category: Clean Energy Systems and The Environment)
“A plant-growth chamber system for the exposure to submicron aerosol particles”
(Lenggoro, Gen, Lim, Ikawa, Yamaguchi, Izuta)

==================
MEMBERSHIPS
==================
* Society of Chemical Engineers, Japan
* Japan Association of Aerosol Science and Technology
* Pesticide Science Society of Japan

==============================================================
JOURNAL ARTICLES
==============================================================
[DEPOSITION/ASSEMBLY OF PARTICLE FROM GAS PHASE]
A colloidal route to detection of organic molecules based on surface-enhanced Raman spectroscopy using nanostructured substrate derived from aerosols,
M. Gen, H. Kakuta, Y. Kamimoto, I. W. Lenggoro,
Jpn. J. Appl. Phys. 50 (2011) 06GG10 (5 pages)
http://dx.doi.org/10.1143/JJAP.50.06GG10

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
Vol. 12 (2014) p. 238-241
http://dx.doi.org/10.1380/ejssnt.2014.238

Plant growth chamber system for submicron aerosol delivery to the leaf surfaces,
M. Gen*, S. Ikawa*, M. Yamaguchi, F. Lim, T. Izuta, I. W. Lenggoro,
*Equal contribution

Area-selective deposition of charged particles derived from colloidal aerosol droplets on a surface with different hydrophilic levels
K. Kusdianto, M. Gen, I. W. Lenggoro
Journal of Aerosol Science (2014)
http://dx.doi.org/10.1016/j.jaerosci.2014.06.001

Transformation of cyclodextrin glucanotransferase (CGTase) from aqueous suspension to fine solid particles via electrospray method
Enzyme and Microbial Technology (2014)
Saallah, Naim, Mokhtar, Abu Bakar, Gen, Lenggoro

[DEVELOPMENT OF ANALYTICAL METHOD – BASED ON PARTICLE ASSEMBLY]
Probing a dip-coated layer of organic molecules by aerosol nanoparticles sensor with sub-100 nm resolution based on surface-enhanced Raman scattering
M. Gen & I. W. Lenggoro (RSC Advances, 2014)

A protocol for detection of chemical residues distributed in a field using surface-enhanced Raman spectroscopy method,
M. Gen, H. Kakuta, Y. Kamimoto, I. W. Lenggoro (submitted)

Surface-enhanced Raman spectroscopy from metal nanoparticles derived from charged aerosols,
M. Gen and I. W. Lenggoro (submitted)

Vacuum-induced rearrangement of pattern of metal nanoparticles deposited on a flat substrate
M. Gen and I. W. Lenggoro (Submitted)

Micro-Raman investigation on the hygroscopic behavior in nanoparticles filled ammonium sulfate particle deposited on a substrate
I. W. Lenggoro, E. Herliana, M. Gen, A. Seki (submitted)

[GENERATION AND MEASUREMENT OF PARTICLES SUSPENDED IN GAS PHASE]
Generation of nano and submicro-meter sized carbonaceous aerosol particles
S. Ikawa*, M. Gen*, I. W. Lenggoro (submitted) *: Equal contribution

Effects of structures of dilution samplers and operating conditions on aerosol formation from CdCl2 vapor gas
H. Kamiya, M. Gen, T. Sekizawa, K. Hada, T. Ejima, M. Tsukada, I. W. Lenggoro (submitted)

Measurement of aerosols derived from model gas containing two metal components after cooling and dilution process
N. Hama, Y. Takashima, M. Gen, M. Tsukada, H. Kamiya, I. W. Lenggoro
Earozoru Kenkyu (Journal of Aerosol Research Japan), 26(4) 277-285 (2011)
(2013 KANJI TAKAHASHI AWARD)
takahashi-award-20131.jpg

==============================================================
PRESENTATION IN INTERNATIONAL MEETING:
==============================================================
IAC (International Aerosol Conference) Busan, Korea.
2014, August 28 to September 2
………………
(Gen and Lenggoro)

IAC (International Aerosol Conference) Busan, Korea.
2014, August 28 to September 2
………………
(Kus, Gen, Lenggoro)

8th Asian Aerosol Conference (2-5 December 2013) Sydney.
Aerosol-Assisted Characterization of Organic Molecules Adsorbed on a Solid Substrate
(Gen & Lenggoro)

5th Nanoscience and Nanotechnology Symposium, NNS,
23-25 October 2013 (Hotel Meritus, Surabaya, Indonesia)
CS-68. Fabrication of nanostructure derived from gas-phase nanoparticles for detection of organic molecules

5th Asian Particle Technology Symposium, Singapore 3-5 July 2012
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 and I. Wuled Lenggoro

Deposition of submicron aerosols on both sides of a substrate derived from charged droplets of aqueous suspension:
M. Gen, S. Sagawa, H. Kamiya, W. Lenggoro,
7th Asian Aerosol Conference, 2011/8/17-20, Xi’an (China)

Nanostructured substrates derived from aerosol nanoparticles for a tagging system with surface-enhanced Raman spectroscopy (Poster, 11D-8-59),
M. Gen, H. Kakuta, Y. Kamimoto, W. Lenggoro
23rd International Microprocesses and Nanotechnology Conference, 2010/11/9-12, Fukuoka

==============================================================
PRESENTATION IN DOMESTIC MEETING:
==============================================================
固体表面における無機塩粒子の吸湿特性評価システムの構築
第78回化学工学会年会 2013/03/17

構造体とラマン分光法を用いたネオニコチノイド系農薬の検出
日本農薬学会第38回大会 2013/03/14

希釈器内における混合ガス由来のモデルエアロゾルの計測 (Invited)
COMSOL Conference Tokyo 2012, 2012/11/22

空気中に浮遊する微粒子の検出技術 ~ナノスケール構造体の形成から農薬散布のモニタリングまで~
東京農工大学 科学技術展 2012, 2012/11/09

微粒子汚染と植物への影響 -モデル微粒子の生成と沈着が可能な装置の開発-
東京農工大工 科学技術展 2012, 2012/11/09

農薬の飛散分布の把握に向けた粒子構造形成と検出技術の開発
(東農工大院BASE)玄 大雄・ (植物情報物質研究セ) 角田 英男・ (神奈川県産技セ) 上元 好仁・ (東農工大院工) Wuled Lenggoro
化学工学会 第77年会, 2012/3/15

Front- and rear-side deposition of submicron aerosols derived from charged droplets containing particles (Poster)
Gen Masao, Sagawa Shin-ichi, Kamiya Hidehiro, Wuled Lenggoro
化学工学会 第43回秋季大会: 2011/9/14-16, Nagoya

気相合成ナノ粒子の構造体を用いた表面増強ラマン散乱センサーの開発
玄 大雄・角田 英男・上元 好仁・Wuled Lenggoro
化学工学会 第43回秋季大会, 2011/9/14-16: Nagoya

植物のサブミクロン粒子曝露における液中ナノ粒子のエアロゾル化と沈着,
W. Lenggoro, 玄 大雄, 佐川 慎一, 伊豆田 猛,
化学工学会秋季大会, 2010/9/6, Kyoto.

Electrical-assisted deposition of aerosol particles derived from aqueous suspension of nanopowders (3I05),
M. Gen, S. Sagawa, N. Naim, M. Iijima, H. Kamiya, W. Lenggoro*
セラミックス協会2010年会, 2010/3/24, Tokyo

植物用エアロゾル曝露チャンバーにおける粒子発生システムの構築,
玄 大雄, Lim Fong Zyin, 井川 誠司, 山口 真弘, 伊豆田 猛, Lenggoro Wuled*
第12回 化学工学会 学生発表会(東日本地区) 2010/3/6, Tokyo

==============================================================
OTHER PRESENTATIONS (as a co-author)
==============================================================
環境大気中PM2.5 の表面電位の測定
第30回エアロゾル科学・技術研究討論会 2013/08/27

球根類に存在する放射性物質の分布モデルに関する予備的検討
第22回環境化学討論会 2013/07/31

Hygroscopic Behavior of Inorganic Particles Deposited on Solid Surfaces
9th Asia Pacific Conference on Sustainable Energy & Environmental Technologies (APCSEET 2013) 2013/07/05

A protocol to detect chemical residues using a nanoparticle-based sensor combined with a Raman spectroscopic method
19th Regional Symposium on Chemical Engineering, 2012/11/07

Hygroscopic behavior of inorganic particles deposited on solid surfaces
第29回エアロゾル科学・技術研究討論会, 2012/08/28

5th Asian Particle Technology Symposium, Singapore 3-5 July 2012
122: Oral: A Chamber System with Aerosol Generators for Exposures of Plants to Submicrometer-Sized Particles
Wuled Lenggoro*, Masao Gen, Seiji Ikawa, Fong-Zyin Lim, Masahiro Yamaguchi and Takeshi Izuta

An aerosol generator system for long-duration exposures of plants to submicrometer-sized particles
W. Lenggoro; M. Gen; F.-Z. Lim; S. Ikawa; M. Yamaguchi; T. Izuta
2011/8/17-20, Xi’an

A plant growth chamber system for the exposure to submicron aerosol particles
Wuled Lenggoro, Masao Gen, Fong-Zyin Lim, Seiji Ikawa, Masahiro Yamaguchi, Takeshi Izuta
13th Asia Pacific Confederation of Chemical Engineering Congress, 2010/10/6-8, Taipei

ミクロン液滴を用いたエアロゾル粒子の輸送と基板への沈着の計測
Lim Fong Zyin, 玄 大雄, 神谷 秀博, 伊豆田 猛, Wuled Lenggoro,
化学工学会秋季大会, 2010/9/7, Kyoto.

植物育成チャンバーにおけるサブミクロン粒子曝露システムの構築
Wuled Lenggoro, 玄 大雄 , Lim Fong Zyin, 井川 誠司, 山口 真弘, 伊豆田 猛
2010エアロゾル科学技術研究討論会, 2010/8/4, Nagoya

水中に分散させたカーボン粒子のエアロゾル化と基板への沈着,
佐川 慎一、玄 大雄、Nazli Naim、飯島志行、神谷秀博、Wuled Lenggoro,
2009エアロゾル科学技術研究討論会, 2009/8, Okayama

Other doctoral thesis from our group (Supervisor: Wuled Lenggoro at TUAT, since 2007)
/research/thesis

line-border-GIF

|| Present member || Former member ||

PAPER: Effect of water-soluble particles on the growth of plants (2 years)…植物に水溶性微粒子を与えていたら?

JOURNAL: Atmospheric Environment (2014)
http://www.sciencedirect.com/science/article/pii/S1352231014000405

Effects of 2-years exposure to (sub-micron) ammonium sulfate particles on growth and gas exchange rates of Fagus crenata (ブナ), Castanopsis sieboldii (スダジイ), Larix kaempferi (唐松) and Cryptomeria japonica (スギ) seedlings

•No significant effect of the particles on growth was observed after 2 years.
•Net photosynthetic rates of 3 species were not significantly changed.
•Net photosynthesis of Cryptomeria japonica was relatively sensitive to (NH4)2SO4.
•Both increase and reduction in net photosynthetic rate were observed in C. japonica.

4種類の植物のうち、スギの光合成速度は硫酸アンモニアの散布に影響を受けていることを見出した。

Four Japanese forest tree species were exposed to submicrometer (NH4)2SO4 particles.

A work from:
TUAT, Agriculture; TUAT, Engineering; Kyoto Univ.; Forestry and Forest Products Research Institute; Hokkaido Univ.

OTHER Recent Papers
https://empatlab.wordpress.com/tag/paper/

books

Student as a project leader in a MEXT/TUAT program, 学生が研究代表者

Masao Gen, a doctoral student got a grant for his project on advancing a sensor technology to detect pesticide on-site. Sponsor = Innovation Advancement Organization (IAO), based on a TUAT/MEXT project.
博士課程後期の学生(玄)が申請した研究プロジェクトが採択されました。
The program includes few-days training at SRI (Stanford Research Institute, California) and Cornell University.

[イノベーション推進機構より]
本プロジェクトは、文部科学省実践型研究リーダー養成事業「ニーズ展開実践型高度研究人材養成モデル化事業」の一環として、博士学生に対して専門分野の枠を越えた研究活動、インターンシップ、並びに産業界との連携を包括的に支援、促進することによって、事前学習で習得した知識や技術を実践し、研究リーダーに求められる能力、資質を磨いていくことを目的としています。博士後期課程学生については、研究代表者として自ら研究チームを組織し、企業等の課題を解決できる企画・提案を実践していくとともに、その後共同研究等に発展することを奨励することとし、これに必要な経費を支援します。

http://www.tuat.ac.jp/~innovate/student/collect.html#2

A reference of our Pesticide Detector (Gen et al., 2011)

PAPER. Measuring carbon particles on leaf surface, 葉面上の炭素系粒子の計測手法

Journal: Asian Journal of Atmospheric Environment (2012)

Optical method for measuring deposition amount of black carbon particles on foliar surface

Authors:
M. Yamaguchi, K. Takeda, Y. Otani, N. Murao, H. Sase, I. W. Lenggoro, K. Yazaki, K. Noguchi, A. Ishida, T. Izuta

Full article (PDF):
http://asianjae.org/browse_sub.html?class_no2=30

研究機関: 東京農工大学(農), 北海道大学(工), 日本環境衛生センター/アジア大気汚染研究センター, 森林総合研究所, 東京農工大学(工), 京都大学生態学研究センター

Affiliations
1: Faculty of Agriculture, Tokyo University of Agriculture and Technology, Fuchu, Tokyo
2: Graduate School of Agriculture, Tokyo University of Agriculture and Technology, Fuchu, Tokyo
3: Graduate School of Engineering, Hokkaido University, Sapporo, Hokkaido
4: Asia Center for Air Pollution Research, Niigata
5: Institute of Engineering, Tokyo University of Agriculture and Technology, Koganei, Tokyo
6: Forestry and Forest Products Research Institute, Tsukuba, Ibaraki
7: Shikoku Research Center, Forestry and Forest Products Research Institute, Kochi
8: Center for Ecological Research, Kyoto University, Otsu, Shiga
9: Institute of Agriculture, Tokyo University of Agriculture and Technology, Fuchu, Tokyo

To perform quick measurements of black carbon (BC) particles deposited on foliar surfaces of forest tree species, we investigated an optical method for measuring the amount of BC extracted from foliar surfaces and collected on quartz fiber filters. The seedlings of Fagus crenata, Castanopsis sieboldii, Larix kaempferi and Cryptomeria japonica were exposed to submicron BC particles for one growing season (June to December). At the end of the growing season, the leaves or needles of the seedlings were harvested and washed with deionized water followed by washing with chloroform to extract the BC particles deposited on the foliar surfaces. The extracted BC particles were collected on a quartz fiber filter. The absorption spectrum of the filters was measured by spectrophotometer with an integrating sphere. To obtain the relationship between the absorbance of the filter and the amount of BC particles on the filter, the amount of BC particles on the filter was determined as that of elemental carbon (EC) measured by a thermal optical method. At wavelengths below 450 nm, the absorption spectrum of the filter showed absorption by biological substances, such as epicuticular wax, resulting in the low coefficient of determination (R2) in the relationship between the amount of EC on the filter (MEC, μg C cm−2 filter area) and the absorbance of the filter. The intercept of the regression line between MEC and the absorbance of the filter at 580 nm (A580) was closest to 0. There was a significant linear relationship between the A580 and MEC (R2 = 0.917)

files-folderRecent topics from published journal articles: 最近の論文概要

Co-hosted: International Symposium on Aerosols in East Asia & Their Impacts on Plants & Human Health (11/29-12/1)

We co-hosted and most of students assisted an International Symposium held in our campus:

Aerosols in East Asia and Their Impacts on Plants and Human Health
Nov.29-Dec.1, TUAT Koganei campus

東京農工大学小金井キャンパスで開催されるエアロゾル国際シンポジウム

>> Symposium website

Presentations from our group:

0) A Plant Growth Chamber System Facilitated with Aerosol Depositor for Transporting Submicron Articles onto Leaf Surfaces.
M. Gen (D2), S. Ikawa (D3), F. Y. Lim, M. Yamaguchi, T. Izuta, W. Lenggoro

1) Collaborated with Izuta Group/Institute of Agriculture, etc.
1.1) Experimental study on the effects of ammonium sulfate particles on Fagus crenata, Castanopsis sieboldii, Larix kaempferi and Cryptomeria japonica
M. Yamaguchi, Y. Otani, P. Li, H. Nagao, A. Seki, I. W. Lenggoro, K. Yazaki, K. Noguchi, A. Ishida, T. Izuta

1.2) Effects of black carbon particles on growth and gas exchange rates of Fagus crenata, Castanopsis sieboldii, Larix kaempferi and Cryptomeria japonica seedlings
M. Yamaguchi, K. Takeda, Y. Otani, I. Wuled Lenggoro, K. Yazaki, K. Noguchi, A. Ishida, H. Sase, N. Murao, T. Izuta

2) Collaborated with Kamiya group, etc.
2.1.) Aerosol formation and emission behavior characterization from stationary sources
H. Kamiya, M. Tsukada, W. Lenggoro, N. Namiki, M. Wada, N. Noda, H. Makino, C. Minejima, W. W. Szymanski
1 Tokyo University of Agriculture and Technology, 2 Kogakuin University, 3 Ishikawa National College of Technology, 4 Central Research Institute of Electric Power Industry, 5 University of Vienna

2.2) Evaluation of fine particle emission from stationary sources by surface area concentration
M. Arai, M. Tsukada, M. Yamada, T. Ejima, T. Sekizawa, S. Ikawa, N. Hama, W. Lenggoro, H. Kamiya

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)
・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…