Search Results 1-20 of 577

  • Effect of molecule-substrate interaction on tautomerization studied by scanning probe microscopy  [in Japanese]

    Shimizu Tomoko K. , Custance Oscar

    <p>Ag(111)とNaCl二層膜に吸着したメソジベンゾポルフィセン分子を高分解能原子間力顕微鏡と走査型トンネル顕微鏡で観察し、第一原理計算結果との比較から吸着分子の安定性と2つの異性体の互変異性化反応について考察した。金属と絶縁薄膜上では、吸着エネルギーや構造が異なるだけでなく、それらが互変異性化反応へも影響を与え、金属上や気相とは異なる振る舞いをすることが明らかとなった。< …

    Abstract book of Annual Meeting of the Japan Society of Vacuum and Surface Science 2020(0), 234, 2020

    J-STAGE 

  • Molecular dynamics simulation of atomic force microscopy on monolayer sumanene on Au surface  [in Japanese]

    Minowa Reona , Matsuyama Rintaro , Yamasaki Koki , Sakurai Hidehiro , Sasaki Naruo

    <p>金基板スマネン単層薄膜上でAFM探針を走査する分子動力学シミュレーションを行った.探針押し込み走査では,探針を基板に近づけるとスマネンは下凸配向から平面へと変化をし,基板から離すと上凸配向へと反転をした.探針水平走査で得られた水平力曲線をFFT解析すると3つの特徴的なピークが得られた.ピークを調べるとスマネン分子の配列構造と,探針先端-スマネン先端の原子構造を反映していることが分 …

    Abstract book of Annual Meeting of the Japan Society of Vacuum and Surface Science 2020(0), 227, 2020

    J-STAGE 

  • Preparation of Highly Selective Sorbents Composed of Peptides and Silica Using Novel Molecular Imprinting Technology for Target Metal Ions

    Stevens Morlu Gf , Yokota Saki , Gotoh Takeshi

    … The target metal ions were adsorbed to metal-iPSPs at a pH of 8.0. … The adsorption isotherm was well approximated using the Langmuir model, indicating that the metal-iPSP surface was homogeneous, adsorption sites were equivalent, and the coverage formed a monolayer. …

    JOURNAL OF CHEMICAL ENGINEERING OF JAPAN 53(9), 485-493, 2020

    J-STAGE 

  • Room-Temperature Deposition of Cobalt Monolayer on (7×4) Crown-Ether Ring Molecular Array : Ultra-High Vacuum STM and UPS Study  [in Japanese]

    NEMOTO Ryohei , KRÜGER Peter , HOSOKAI Takuya , HORIE Masaki , KERA Satoshi , YAMADA Toyo Kazu

    … <p>Monolayer deposition of cobalt was demonstrated on a well-ordered ring molecular array at room temperature in ultra-high vacuum by means of home-built low-temperature scanning tunneling microscopy (STM) and ultraviolet photoelectron spectroscopy (UPS) setups. … Sub-monolayer cobalt (Co) was deposited on a (7×4) array of 4,4′,5,5′-tetrabromodibenzo[18] crown-6 ether (Br-CR) molecules grown on Cu(111). …

    Vacuum and Surface Science 63(9), 465-469, 2020

    J-STAGE 

  • Extreme Ultraviolet Photoelectron Spectroscopy on Fluorinated Monolayers: towards Nanolithography on Monolayers

    Lugier Olivier , Troglia Alessandro , Sadegh Najmeh , van Kessel Luc , Bliem Roland , Mahne Nicola , Nannarone Stefano , Castellanos Sonia

    … In this work, we explore an alternative concept to the classic photoresist material by using an organic self-assembled monolayer (SAM) on a gold substrate. … The monolayer, composed of a richly fluorinated thiol sensitive to low-energy electrons, is adsorbed on the Au substrate which acts as main EUV-absorber and as the source of photoelectrons and secondary electrons. …

    Journal of Photopolymer Science and Technology 33(2), 229-234, 2020

    J-STAGE 

  • A RuO<sub>2</sub> Nanosheet as a Novel Quencher-free Platform for the Detection of Nucleic Acids in a Homogeneous Solution

    KITAMURA Yusuke , TANIGUCHI Takaaki , TSUTSUMI Miwako , NURDIWIJAYANTO Leanddas , MATSUO Tomoya , KATSUDA Yousuke , IHARA Toshihiro

    … <p>A fluorescent dye-labeled DNA probe was adsorbed and quenched on the monolayer of RuO<sub>2</sub> …

    Analytical Sciences 36(4), 397-400, 2020

    J-STAGE 

  • Atomic-scale structure and work function of the K-adsorbed Pd(110)-(1 × 2) surface

    Higashiyama Kazuyuki , Kazuyuki HIGASHIYAMA

    … The (110) surface of Pd shows a (1 × 2) symmetry when a small amount of K is adsorbed. … the K atoms are invisible at coverage of 0.1 monolayer, while they appear as bright rows at 0.3 monolayer.The work functions are calculated for a model in which K atoms are arranged along the grooves of the reconstructed Pd substrate.The calculation agrees very well with the experiment. …

    Japanese Journal of Applied Physics 58(9), 095503-1-0955037, 2019-08-23

    IR  DOI 

  • Formation and Electron Injection Characteristics of Diamond Nanoparticle Adsorbed Layer  [in Japanese]

    杉本 有莉子 , 大石 不二夫 , 田中 邦明 , 臼井 博明

    電気学会研究会資料. DEI 2019(73-83), 17-20, 2019-07-05

  • Simple Electrochemical Method for the On-site Detection of Neurotoxins

    SHIMADA Hiroshi , IHARA Toshihiro

    <p>カチオン性チオール/ジスルフィド分子の金電極上における電子移動促進効果を見いだし,新たな原理に基づく分子センサーを開発した.神経毒の一種であるネライストキシン(4-<i>N,N</i>-dimethylamino-1,2-dithiolane, NRT)は,分子内にジスルフィド結合と3級アミンを有し,Au-S共有結合を介して金電極表面に結合し自己組織化単分 …

    BUNSEKI KAGAKU 68(12), 911-923, 2019

    J-STAGE  Ichushi Web 

  • Decomposition Mechanism of H<sub>2</sub>O on Surface of Forsterite Glass  [in Japanese]

    KUBO Ayane , NISHIZAWA Junya , IKEDA-FUKAZAWA Tomoko

    … <p>To investigate the decomposition mechanisms of adsorbed H<sub>2</sub>O molecules as a monolayer on the surface of forsterite glass, we performed molecular dynamics calculations. …

    Journal of Computer Chemistry, Japan 18(3), 164-165, 2019

    J-STAGE 

  • Dynamics of sumanene monolayer on Au(111) induced by AFM tip  [in Japanese]

    Matsuyama Rintaro , Yamasaki Koki , Sakurai Hidehiro , Sasaki Naruo

    <p>本研究では金(111)基板上に吸着したスマネン単層薄膜上に原子間力顕微鏡(AFM)探針を垂直に押し込み,一定の高さで水平に走査する分子動力学シミュレーションを行った.探針を臨界距離まで押し込み戻すと探針直下のスマネンは反転した.反転によるスマネンのエネルギーと電荷量の変化について報告する.また,水平力曲線の波形を高速フーリエ変換した結果,薄膜構造を示す2つの特徴的なピークが現われ …

    Abstract book of Annual Meeting of the Japan Society of Vacuum and Surface Science 2019(0), 2P16S, 2019

    J-STAGE 

  • Analysis of structures of Ag-adsorbed Si(001) surfaces using neural network potential: toward the analysis of initial process of Ag thin film growth  [in Japanese]

    Morishita Hirotaka , Huxter William , Singh Chandra , Nogami Jun , Shimizu Koji , Minamitani Emi , Watanabe Satoshi

    <p>電気抵抗の低さから半導体デバイス等への応用が期待されるAgだが、Si(001)上の成長初期過程には不明点が残る。その微視的素過程の解明に向け、本研究では密度汎関数法計算データとニューラルネットワークを組み合わせた原子間ポテンシャルを作成し、これを用いてAg吸着Si(001)表面の構造を解析する。特に、最近提案された新しいAg吸着モデルの妥当性を検証する。</p>

    Abstract book of Annual Meeting of the Japan Society of Vacuum and Surface Science 2019(0), 2P33S, 2019

    J-STAGE 

  • Maintenance Properties of Enzyme Molecule Stereostructure at High Temperature by Adsorption on Organo-Modified Magnetic Nanoparticle Layer Template

    Yunoki Takeru , Kimura Yusuke , Fujimori Atsuhiro

    … The surface pressure-time isotherms of these biomolecules showed that the crystal transition of the Gibbs monolayer corresponding to denaturation and deactivation was systematically different. … These biomolecules were adsorbed/immobilized on a nanosheet of organo-modified magnetic fine particles. …

    Bulletin of the Chemical Society of Japan 92(10), 1662-1671, 2019

    J-STAGE 

  • Adsorption Behavior of Curcumin onto Cetyltrimethylammonium Chloride Reverse Micelles Immobilized on a Glass Surface As Studied by Polarized Visible Attenuated Total Reflection Spectrometry with a Glass Slab Optical Waveguide

    NISHIWAKI Takuya , SATO Kiichi , TSUNODA Kin-ichi , HORIUCHI Hiroaki , FUJIWARA Terufumi

    … <p>Polarized visible attenuated total reflection spectrometry with a glass slab optical waveguide revealed that when a hydrophobic dye, curcumin, was adsorbed onto the cetyltrimethylammonium chloride (CTAC) reverse micelles immobilized on a glass surface, in an undissociated form, the curcumin was perpendicular to the surface plane, while in a dissociated form, the curcumin was parallel to the plane. …

    Analytical Sciences 35(4), 465-469, 2019

    J-STAGE 

  • Graphene Nanomechanical Resonator Mass Sensing of Mixed H<sub>2</sub>/Ar Gas

    Muruganathan Manoharan , Seto Fumihiro , Mizuta Hiroshi

    … The graphene resonator is fabricated with monolayer graphene. … The detected mass of the adsorbed gas molecules is calculated as ∼15 attograms.</p> …

    International Journal of Automation Technology 12(1), 24-28, 2018

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  • Electrochemical Detection of Manzeb Using Reductive Desorption from Au(111) and Au(100)

    NISHIYAMA Katsuhiko , SAWADA Natsumi , KATAOKA Mayu , TSURUTA Keisuke , YAMAMURA Kentaro , ORIGUCHI Sakura , YOSHIMOTO Soichiro

    … The surface-enhanced infrared absorption spectra of Manzeb on a Au thin film electrode in its monolayer state showed that Manzeb was adsorbed on the substrate via the dithiocarbamate moiety and the long axis of ethylenebis(dithiocarbamate) dianion was almost perpendicular to the surface.</p> …

    Electrochemistry 86(6), 345-348, 2018

    J-STAGE 

  • Development of wound dressing with sustained-release of drug using natural polymer  [in Japanese]

    NAGASAWA Fumie , YOSHIKAWA Yuki , TANIDA Ikuhiro , OSAWA Satoshi

    … The chitosan nanofiber and CAG adsorbed fradiomycin sulfate in a manner of monolayer. … The fradiomycin sulfate adsorbed to CAG was gradually released at a constant rate in PBS (phosphate buffer solution).</p> …

    Journal of the Society of Materials Science, Japan 67(10), 918-923, 2018

    J-STAGE 

  • Cyclic Voltammetry and <i>in situ</i> Infrared Reflection Absorption Spectroscopy on Kinetic Effect of Physisorbed Dioctadecylsulfide on a Cu-UPD Process on Au(111) Electrode Surface

    Endo Osamu , Ozaki Hiroyuki , Nakamura Masashi , Amemiya Kenta

    … <p>The presence of a self-assembled monolayer (SAM) of dioctadecyl sulfide (DOS) on a Au(111) electrode affects the underpotential deposition (UPD) of copper in sulfuric acid solution. … Neutral molecules are preferentially adsorbed on the Au(111) electrode surface at around the potential of zero charge (pzc), which is approximately −0.1 V (vs. Hg|Hg<sub>2</sub>SO<sub>4</sub>) in sulfuric acid solution. …

    e-Journal of Surface Science and Nanotechnology 16(0), 60-65, 2018

    J-STAGE 

  • Preparation of Water-Repellent Monomolecular Films by CF<sub>4</sub> Plasma Treatment on Hydrocarbon Monolayers  [in Japanese]

    MA Xiaoyuan , OGAWA Kazufumi , SUZAKI Yoshifumi

    … plasma treatment on the chemically adsorbed hydrocarbon monomolecular films. … Thus, the plasma treatment technique may be useful into preparing the highly durable fluorinated monomolecular films with the cross linkage inter adsorbed molecules in the monolayer films.</p> …

    Journal of the Japan Society for Precision Engineering 84(3), 272-276, 2018

    J-STAGE 

  • Metal/Conductive Oxide Plasmonic Structures for Surface-Enhanced Infrared Absorption Spectroscopy  [in Japanese]

    NAGAO Tadaaki , CHEN Kai , DAO Thang Duy , ISHII Satoshi , CHANG Robert P.H. , HOANG Chung V. , OYAMA Makiko , MAEDA Miki

    表面増強赤外吸収(Surface-Enhanced Infrared Absorption Spectroscopy: SEIRA)は,固体表面に吸着した単分子層や微量検体の振動シグナルが大きく増強される現象である.中赤外の波長帯域にプラズモン共鳴を持つ光ナノアンテナやメタマテリアルを用いることで,シグナル増強現象を効果的に生じさせ,高感度な振動分光計測ができる.近年,ナノ構造製作技術や表面機能化 …

    BUNSEKI KAGAKU 67(2), 81-94, 2018

    IR  J-STAGE 

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