Does the leaf structure prevent the deposition of aerosols? 葉の構造はエアロゾルの付着を防止する?

Epicuticular “wax” crystals affect distribution of incoming particles on needles (leaf surfaces). Densely distributed “wax” might prevent the deposition of sub-micron particles on the surfaces of needles to retain the function of stomata. スギ(代表的な針葉樹種)の葉表面に人工的に散布されたsub-micronの炭素系粒子の局在を調べた。気孔の機能を保持するために密に分布されたワックスは、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。

PAPER: Charge of Particle by Kelvin Probe Force Microscopy. ケルビンフォース顕微鏡で粒子の帯電を計測

呼吸により人体に入る微粒子の帯電状態が注目された。本研究では大気中に浮遊する微粒子の帯電状態を評価できる手法を考案。The importance of electrostatic charging state to particle deposition in the human airways has been suggested. We developed a measurement method of electrostatic charging state of individual ambient aerosol particles

PAPER: Fine particles on bio-composite surface. ココナツ殻由来素材の表面に微粒子を集積

Other “intro” of papers from our lab >> /tag/paper/   HIGHLIGHTS: * Physical treatment on the biocomposite increases the surface roughness. * Single bond COOH network on the treated biocomposite promotes the particle deposition. * The network reduces the particles repulsion during the deposition process. # Bio-composite(バイオコンポジット)is a composite material formed by a matrix (resin) and…

How small can the enzyme be ? 酵素(粒子)はどこまで小さくできるのか?

http://dx.doi.org/10.1016/j.enzmictec.2014.06.002 Transformation of an enzyme: from aqueous suspension to fine solid particles via electrospraying route 静電噴霧法による糖転移酵素の微粒化 by* Dept. of Process and Food Engineering, Univ. Putra Malaysia; * Biotechnology Research Institute, Univ. Malaysia Sabah; * Faculty of Chemical Engineering, Univ. Teknologi MARA; * Grad. School of Bio-Applications and Systems Engineering, Tokyo Univ. of Agriculture and Technology…

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

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….