Research

PAPER: Removal of particles from potable water. 水道水(飲料水)から微粒子を採集

Other "intro" of papers from our lab >> /tag/paper/ Removal of iron-oxide particles after post-filtration in local potable water using an electrophoretic method Collaborated with: Univ. Putra Malaysia; Univ. Teknologi MARA, Malaysia Journal of Water Process Engineering: Vol. 9, Feb. 2016, Pages 208–214. doi: Full text/PDF: Researchgate, or here Keywords: Electrophoretic deposition; Fibre electrodes; Limiting flux;… Continue reading PAPER: Removal of particles from potable water. 水道水(飲料水)から微粒子を採集

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

Surface analysis: Particle assembly [then] Raman spectroscopy. 粒子集積の後にラマン分光:表面分析法

Gas-to-surface sprayed nanoparticle sensor system for probing a layer of organic molecules, at sub-100 nm resolution .気中分散微粒子を用いて、表面上の分子「パターン」に対して直接「検査」可能な技術

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

Research

Can particles in water be immobilized in holes below 100 nm? 水中浮遊粒子を100nm以下の穴に固定化できるのか?サンドイッチ型複合材料の形成。

Immobilization of colloidal particles into sub-100 nm porous structures by electrophoretic methods in aqueous media Kusdianto, Sasaki, Naim, Lenggoro, Colloids Surfaces A: 10.1016/j.colsurfa.2014.06.042 【新規性】新開発の「パルス型電気泳動法(Pulse-type Electrophoretic Deposition/EPD)」および従来EPD法を用いて、水中に浮遊する粒子を100nm以下の穴(ポーラス構造)に挿入・固定。世界初です。 【耐久性】ポーラス構造内に固体化された粒子に対して、超音波エネルギーをかけて、粒子の脱離を試みましたが、穴に粒子がちゃんと残こります。 【展開】酵素や触媒材料の固定化技術への応用 Full article RELATED TECHNOLOGY: 関連技術・成果 Submicrometer- and nanometer-sized particles 2D structure from colloids, 電界による粒子の2次元構造化:凝集状態の制御Particles with high-crystallinity by-electric field in liquid-phase, 電界による高結晶粒子の構造化:クラックが少ない構造体も可能 Recent journal articles: From our group.

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

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.… Continue reading 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?