Tag Archives: Pesticide

PAPER: Dispersing particles then Raman spectroscopy: New concept for surface analysis. 新しい表面分析法:ラマン分光用の粒子集積

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


* Main researcher: Masao Gen,  a doctoral student: 2011/10-2014/6. Joined Tohoku University (2014-2015, Researcher/Assistant professor), then City Univ. of Hong Kong. He applied this new method (Electrospray-Surface Enhanced Raman Spectroscopy (ES-SERS) for probing particulate matter (PM) collected as “air pollutant” Atmos. Chem. Phys. (2017)

pdf

M. Gen & I. W. Lenggoro, RSC Adv. (2015)
Gen & Lenggoro, RSC Adv. (2015)

Aerosol nanoparticle sensor system for probing a dip-coated layer of organic molecules, at sub-100 nm resolution .気中分散微粒子を用いたSERS法によって、表面上の分子「パターン」に対して直接「検査」可能な技術

関連技術 Related topics: 残留農薬の検出に向けて, Detect a pesticide in the field.

There’s more…さらに詳細に

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

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 ||

Iinoya Award to a student (30th. Symposium on Aerosol). 院生が学会賞受賞

Iinoya Award 2013 for Masao Gen
Doctoral student: MASAO GEN got the 2013 IINOYA AWARD
during 30th SYMPOSIUM ON AEROSOL SCIENCE & TECHNOLOGY (held in Kyoto Univ.)
(Supplementary prize = cash prize of 100,000 Yen)

gen-got-award-kyoto-univ2013

“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

(東京農工大学・大学院博士後期課程)玄 大雄

The award selection was based from a “special session” (5 min. presentation and more than 10 min. Q/A). This session is the only session running; few hundred attendees were the judges. Not only graduate students, but senior researchers also join this session. 【井伊谷賞】ほとんどのシンポジウム参加者が審査員..特別セッションでの優れた発表を対象.エアロゾルに関する萌芽的な研究,問題点の指摘,新しい分野の開拓,未来志向の夢のある話題など,学会の発展・活性化に寄与するものについて,遊びとゆとりの気持ちを持って発表.(エアロゾルとは、気相中に浮遊する固体または液体)

これまでの受賞者: A list of winner of Iinoya Award.

==================================================
Our other presentations at
THE 30th SYMPOSIUM ON AEROSOL SCIENCE AND TECHNOLOGY
August 27−29, 2013, Kyoto Univ.
==================================================
第30回エアロゾル科学・技術研究討論会
2013年 8月27日(火)- 29日(木)
京都大学百周年時計台記念館(京都市左京区吉田本町)
==================================================

Evaluation of generation behavior of condensable suspended particulate matter from stationary sources by using model flue gas
E04* 固定発生源からの凝縮性SPM生成挙動のモデル燃焼排ガスを用いた考察
(東京農工大学)前田洋輔・江島達弥・ 塚田まゆみ・Wuled Lenggoro・神谷秀博 (電力中央研究所)野田直希・牧野尚夫
(With TUAT Kamiya Lab, and Central Research Institute of Electric Power Industry)

made-by-ikawa-sprayer2013

Development and evaluation of a coarse particle generator using piezoelectric device
SE09* 圧電素子を利用した粗大粒子発生器の開発と評価
(柴田科学㈱, 東京農工大学)井川誠司
(東京農工大学)玄 大雄・Wuled Lenggoro
(With Sibata Scientific Technology, Ltd)

Measurement of the surface potential of PM2.5 in ambient air
YP05* 環境大気中PM2.5の表面電位の測定
(慶應義塾大学)郡司裕真・吉田哲郎・奥田知明
(東京農工大学)K. Kusdianto・玄 大雄・ 佐藤誠一・Wuled Lenggoro
[Poster: Main researchers are Okuda group, Keio Univ.]

(An invited talk in 9th Aerosol Young Researcher Meeting)
“Networked Aerosol Researches”

第9回エアロゾル学会若手討論会 【招待講演】Wuled Lenggoro

Lenggoro at JAAST Symposium Kyoto
– This is photo is provided by Young Associations in JAAST

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)

Presentations in Society of Chemical Engineers (SCEJ)化学工学会 & Pesticide Science Soc., 日本農薬学会

Our presentations in March 2013

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
“Development of measurement system for measuring the hygroscopicity of inorganic salt particle deposited on a substrate”
(Herliana, Seki, Gen, Lenggoro)
2013/03/17
78th Annual Meeting of Society of Chemical Engineers, Japan (SCEJ)
Osaka University
http://www3.scej.org/meeting/78a/en_index.html

銀微粒子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
“Detection of neonicotinoid pesticide using silver particle-based structure and Raman spectrometer”
(Gen, Kakuta, Kamimoto, Lenggoro)
2013/03/14
38th Annual Meeting of Pesticide Science Society of Japan,
University of Tsukuba
http://pssj2.jp/congresses/38/taikai38.html

Shamisen

PRESENTATIONS by students:
empatlab.wordpress.com/members/student_presentations/

PRESENTATIONS co-authored by Lenggoro:
kenkyu-web.tuat.ac.jp/Profiles/14/0001355/meeting_achieve1.html

PAPER: Nano-structure for on-site detection of pesticide. 残留農薬の現場検査に向けたナノ構造化

A colloidal route to detection of organic molecules based on surface-enhanced Raman spectroscopy (SERS) using nanostructured substrate derived from aerosols

>> Jpn. J. Applied Physics, 2011 (Abstract, Full Text PDF)

Collaborated works with:
Plant Ecochemicals Research Center (Eniwa, Hokkaido)
and
Kanagawa Industrial Technology Center (Ebina, Kanagawa)

ナノ粒子の構造化による基板(チップ)形成を行い、ラマン散乱分光を用いた微量な(モデル:農薬)成分の検出精度を向上させた。

著者:
玄大雄(東京農工大学・修士課程)、
角田英男((社)植物情報物質研究センター(北海道))、
上元好仁(神奈川県産業技術センター)、
ウレット・レンゴロ(東京農工大学)

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