Tag Archives: Plants

PAPER: Spraying water-soluble particles to komatsuna leaves. 小松菜に水溶性微粒子を散布したら・・

Short Introductions of /our papers/


Free-access (until Dec. 1, 2017): elsevier.com

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 to be absorbed into the leaf. 葉表面に堆積した粒子の量は時間とともに減少した。サブミクロン硫酸アンモニウム(AS)粒子が葉表面に堆積し、脱離溶液中のSO42−などのイオンが葉に吸収される可能性が高い。

Continue reading PAPER: Spraying water-soluble particles to komatsuna leaves. 小松菜に水溶性微粒子を散布したら・・

PAPER: Leaf structure to prevent “incoming” particles. 葉の構造は大気中微粒子の付着を防止する?

Other “intro” of papers from our lab >> /tag/paper/


Our results suggest that epicuticular wax crystals affect distribution of particles on needles. Densely distributed epicuticular wax crystals might prevent the deposition of sub-micron particles on the surfaces of needles to retain the function of stomata.

電界放出型走査電子顕微鏡(FE-SEM)によるスギ(代表的な針葉樹種)の葉表面に人工的に散布されたサブミクロンサイズの炭素系粒子の局在を調べました。気孔の機能を保持するために、密に分布されたエピクチクラワックス結晶は、気中からの微粒子の付着を防止する役割があるかもしれません。 Continue reading PAPER: Leaf structure to prevent “incoming” particles. 葉の構造は大気中微粒子の付着を防止する?

PAPER: Between Charged Aerosol Particles & Substrate’s Hydrophilicity.(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

pdf
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), Gen (Doctoral student, joined Tohoku Univ. then City Univ. Hong Kong), and Lenggoro.

Highlights
* Charged aerosol particles were derived from spraying colloidal droplets.
* Substrate with different ‘levels’ of hydrophilicity was used.
* Positively charged aerosol particles tended to approach the ‘more hydrophilic’ area.

Go to hydropilic surface

異なる親水性度をもつ基板(表面)に対して、気相中に浮遊させた帯電微粒子の挙動を調べました。
【新規性】正に帯電された浮遊微粒子がより親水性度が高い表面に沈着(付着)する傾向にあることがわかりました。
【応用展開1】材料のパターン化技術のヒント
【応用展開2】植物表面における大気中浮遊粒子の沈着の研究のヒント

Patterning on ‘more hydrophilic’ area
pdf
>>> Some journal papers from our group.

Short-link of this site:
http://wp.me/p10HOa-1Qs

PAPER: Deposition of gas-phase particles on both sides. 薄板の裏側まで微粒子が沈着

Open article in PDF

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.

masao_gen_graphical_Abstract

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

Recent journal articles: From our group.
Recent journal articles: From our group.

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: with a project funded by MEXT Kakenhi (2011-2014)科研費の成果

科研費の結果に関するサイトです。 (研究課題番号:23560904)

PROJECT TITLE:
Multi-dimensional assembly and assessment of high-crystalline fine particles via charged aerosol route. 帯電エアロゾルを用いた高結晶性微粒子の多次元集積と評価

ARTICLE
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
masao_gen_graphical_Abstract

ARTICLE
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
graphical-abstract

ARTICLE
Thermal stability of silica-coated magnetite nanoparticles prepared by an electrochemical method
F. Fajaroh, H. Setyawan, A. Nur, I. W. Lenggoro
Advanced Powder Technology 24 (2), 507-511, 2013

ARTICLE
Optical Method for Measuring Deposition Amount of Black Carbon Particles on Foliar Surface.
Masahiro Yamaguchi, Kenta Takeda, Yoko Otani, Naoto Murao, Hiroyuki Sase, I. Wuled Lenggoro, Kenichi Yazaki, Kyotaro Noguchi, Atsushi Ishida, Takeshi Izuta
2012/12/1, Asian Journal of Atmospheric Environment (AJAE) Volume 6, Issue 4

ARTICLE
One-step synthesis of silica-coated magnetite nanoparticles by electrooxidation of iron in sodium silicate solution
H Setyawan, F Fajaroh, W Widiyastuti, S Winardi, IW Lenggoro, N Mufti
Journal of Nanoparticle Research 14 (4), 1-9, 2012

ARTICLE
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:
Japanese Journal of Applied Physics 50. 1-5 (2011)
http://dx.doi.org/10.1143/JJAP.50.06GG10
genJJAP-image

ARTICLE
関連論文:
….

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 (Poster)
電気泳動による寒天ゲルへの微粒子の固定化と濃度分布の調整
(M2) 渡辺 あずさ・Wuled Lenggoro
Keywords: Hydrogel, Nanoparticle, Electrophoresis

2014.March.1, Tokyo
第16回化学工学会学生発表会(東京大会)
16th SCEJ students session
電界を用いた大気中微粒子の捕集器の作製 (A01)
(B4)福島 寿子・山田 洋介・Lenggoro Wuled
Keywords: aerosol, sampling, electrostatic

http://www.chemeng.titech.ac.jp/~stu16e/index.php

2014-Gifu-program-Gen