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….
Tag: Paper
電気化学法で合成した磁鉄鉱ナノ粒子の熱安定性 Thermal stability of magnetite particles made by an electrochemical method,
Magnetite nanoparticles have been prepared by electrooxidation of iron in water. Surface modifications have been conducted by coating the nanoparticles with silica by a one-step synthesis in dilute sodium silicate solution. 水中の鉄の電気酸化によってマグネタイトナノ粒子を調製した。希薄ケイ酸ナトリウム溶液中での一段階合成によりナノ粒子をシリカで被覆することにより表面改質を行った。
PAPER. Measuring carbon particles on leaf surface, 葉面上の炭素系粒子の計測手法
We investigated an optical method for measuring the amount of BC extracted from foliar surfaces and collected on quartz fiber filters. 樹木・葉面から抽出され石英繊維フィルター上に収集されたカーボン系粒子の量を測定する光学的方法を検討した。
PAPER. Visualization of particles on the leaves in trees, 葉面上の粒子の可視化
Visualization of artificially deposited submicron-sized aerosol particles on the surfaces of leaves/needles in trees 樹木の葉表面に任意的に微粒子を沈着させ、それを「可視化」する技術
森林への大気中微粒子の沈着過程. Deposition process of particles into forests
Particulate matter strongly adsorbed onto leaf surfaces is not washed away by rainfall and contributes to the EC (Elemental Carbon) flux. Leaf-surface particles must be included when evaluating the dry and total fluxes of particulate matter, in particular for water-insoluble constituents such as EC. 葉面に強く「付着」した粒子状物質は降雨によって洗い流されず、EC(元素炭素)フラックスに寄与する。粒子状物質、特にECのような水不溶性成分の乾燥流束および全流束を評価する場合には、葉表面粒子を含めなければならない。
植物成長 vs 炭素系微粒子 Exposure: Carbon-based particles vs. growth rates of plants
This is the world`s first “exposure” study using sub-micro meter
(few hundred nanometers) sized particles with growing plants designed for multi-year experiment.
約2年間の実験で植物成長におけるサブミクロン微粒子の影響を調べた、世界初の研究です。
電解酸化で磁性粒子の合成 Silica-coated magnetite particles by electrooxidation
Method: Electrochemical method.
Material: Silica-coated magnetite nanoparticles
Size: 6 to 10 nm
Property: superparamagnetic
方法: 電気化学的
材料: シリカ被覆マグネタイト
粒子サイズ:6-10nm
特性: 超常磁性
Open article: Transport and assembly of particles, 粒子の輸送と集積化
Open article: TRANSPORT AND ASSEMBLY OF LIQUID-PHASE NANOPARTICLES VIA GAS-PHASE (in pdf) An open article, by Wuled Lenggoro (2008, 2009) * Possible applications – For Environment & Energy: Selective-deposition method for liquid-phase nanoparticle – For Healthcare – Measuring the non-spherical nanoparticles in the gas-phase * Potential impact on the environment : – Development of the…
（煙突の模擬）ガス由来微粒子の計測 : Measuring particles from mixed gases
These results may be informative for predicting phenomena related to gas-to-particle conversion at the exit of stationary emission sources.火力発電所等の燃焼過程から生成すると考えられる混合排気ガスを実験室内で模擬した。This paper was awarded 2013 Takahashi Award from Japan Association Aerosol of Science and Technology. エアロゾル学会の2013年のTakahashi賞を受賞。
残留農薬の現場検査に向けたナノ構造化A nano-structure for on-site detection of pesticide
The substrate (chip) was made by structuring nanoparticles, and the detection accuracy of a trace (model: a pesticide) component using Raman scattering spectroscopy was improved. 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。
ラット肺に吸入したナノ粒子（遺伝子発現）Inhaled Nanoparticles in Rat Lung
A study of gene expression in the lungs of rats exposed by inhalation to several tens to hundreds of nanometers of oxide particles over 4 weeks (Six hours a day) 4週間（毎日6時間運転）でラットに数十nm～数百nmの酸化物粒子を吸入させ、ラット肺における遺伝子発現に関する研究。
