Research, Topic

Electrode structuring for production of magnetite nanoparticles in water. 水中のマグネタイト微粒子の量産化に向けた電極の設計

High-throughput production of magnetite nanoparticles prepared by the monopolar arrangement of iron electrodes in water. Based on the works done by a doctoral student from Institut Teknologi Sepuluh Nopember (ITS, Indonesia) and two doctoral students from Tokyo University of Agriculture and Technology (Japan) /doi.org/10.1016/j.ces.2019.02.027 (Chemical Engineering Science, 2019) ◆ナノ粒子製造のための環境に優しいプロセスを提案した。◆水と鉄板以外に化学薬品は必要ない。◆合成ナノ粒子は電気触媒として有望。 *Environmentally friendly process for nanoparticles.*No chemicals… Continue reading Electrode structuring for production of magnetite nanoparticles in water. 水中のマグネタイト微粒子の量産化に向けた電極の設計

Research

Thermal convections break the mist: A particle synthesis method. 熱対流が浮遊ミストを破壊:新しい粒子(層)の合成法

Discovery of a low-energy route to layer of nanometer-sized particles with high crystallinity. 高結晶性を有するナノ粒子層への「省エネプロセス」の発見。

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

“Re-use” enzyme in 200 nm polymer fiber: 高分子繊維中に「再利用可能」酵素を固定化

Other "intro" of papers from our lab >> /tag/paper/ Immobilisation of enzyme into synthetic resin nanofibres via electrospinning. 電界紡糸法(エレクトロスピニング)による酵素の樹脂(繊維)中への固定化 Biotechnology Reports, 10, 2016, 44–48 OPEN ACCESS >>  dx.doi.org/ Resin樹脂: Polyvinyl alcohol. 親水性が強い。 Enzyme酵素: cyclodextrin glucanotransferase。グルコースのオリゴ糖が環状となった構造で、食品、医薬に使用。 Highlights: * PVA nanofibers structure and size were not affected by the addition of enzyme. PVAナノファイバー構造とサイズは酵素の添加に影響されなかった。 * Enzyme/PVA nanofibers show excellent immobilisation… Continue reading “Re-use” enzyme in 200 nm polymer fiber: 高分子繊維中に「再利用可能」酵素を固定化

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

Other "intro" of papers from our lab >> /tag/paper/ * Main researcher: Masao Gen (was a bachelor-master-doctoral student),  joined Tohoku Univ. (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 "air pollutant" Atmos. Chem. Phys. (2017) Aerosol nanoparticle sensor system for probing a dip-coated… Continue reading Surface analysis: Particle assembly [then] Raman spectroscopy. 粒子集積の後にラマン分光:表面分析法

Research

Using plant-derived materials for synthesis of battery powder. 電池用粉末の合成に植物由来の原料を使ってみました。

Other "intro" of papers from our lab >> /tag/paper/ Lithium manganese oxide (LiMn2O4) powders with particle sizes in the range of 100 nm - 600 nm have been synthesized through glucose-assisted combustion synthesis. The presence of glucose increases the stability of the precursor solution, purity of the heat-treated powders, and decreasing on size of the synthesized… Continue reading Using plant-derived materials for synthesis of battery powder. 電池用粉末の合成に植物由来の原料を使ってみました。