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

Research

Does the leaf structure prevent the deposition of airborne particles? 葉の構造は大気中微粒子の付着を防止するのか?

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。 Elucidation of the mechanism of adsorption of particles suspended in the… Continue reading Does the leaf structure prevent the deposition of airborne particles? 葉の構造は大気中微粒子の付着を防止するのか?

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

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

Event, People

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

News

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 ARTICLE Area-selective deposition of charged particles… Continue reading PAPER: with a project funded by MEXT Kakenhi (2011-2014)科研費の成果

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