Tomoya Iwashita, Masaaki Nagao, Akira Yoshimori, Masahide Terazima and Ryo Akiyama
Usefulness of Higher-Order System-Size Correction for Macromolecule Diffusion Coefficients: A Molecular Dynamics Study Chem. Phys. Lett., accepted.
Michika Takeda, Kotetsu Maruyama, Ryo Akiyama, and Tatsuhiko Miyata
Integral equation study of effective attraction between like-charged particles mediated by cations: Comparison between IPY2 and HNC closures EPL (Europhysics Letters), accepted.
Shota Arai, Akira Yoshimori, Yuka Nakamura, and Ryo Akiyama
A Microscopic Theory for Preferential Solvation Effects on Viscosity
accepted.
Farhana Afroze, Daisuke Inoue, Tamanna Farhana, Tetsuya Hiraiwa, Ryo Akiyama, Arif Kabir, Kazuki Sada, Akira Kakugo
Monopolar flocking of microtubules in collective motion Biochemical and Biophysical Research Communications, 563, 73-78(2021); https://doi.org/10.1016/j.bbrc.2021.05.037
Keiju Suda, Ayumi Suematsu, and Ryo Akiyama
Lateral depletion effect on two-dimensional ordering of bacteriorhodopsins in a lipid bilayer: A theoretical study based on a binary hard-disk model
(This paper is part of the JCP Special Topic on Depletion Forces and Asakura–Oosawa Theory) J. Chem. Phys., 154, 204904-1-11 (2021); https://doi.org/10.1063/5.0044399
Yuka Nakamura, Akira Yoshimori, and Ryo Akiyama
Solvation effects on diffusion processes of a macromolecule: Accuracy required for radial distribution function to calculate diffusion coefficient
(This paper is part of the JCP Special Topic on Depletion Forces and Asakura–Oosawa Theory) J. Chem. Phys., 154, 084501-1-10 (2021); https://doi.org/10.1063/5.0038894
Ayumi Suematsu, and Ryo Akiyama
Solvent effect for an effective attraction between like-charged macroions immersed in an electrolyte solution: The intensification mechanism of the effective attraction caused by the translational motion of solvent particles
(This paper is part of the JCP Special Topic on Depletion Forces and Asakura–Oosawa Theory) J. Chem. Phys., 154, 034902-1-8 (2021); https://doi.org/10.1063/5.0033874
Y. Tamura, A. Yoshimori, A. Suematsu, and R. Akiyama
Reentrant crystallization of like-charged colloidal particles in an electrolyte solution: Relationship between the shape of the phase diagram and the effective potential of colloidal particles EPL(Europhysics Letters, 129, 66001-1-7 (2020); https://doi.org/10.1209/0295-5075/129/66001
Commentaries (2020)
Ryo Akiyama, Masahiko Annaka, Daisuke Kohda, Hiroyuki Kubota, Yusuke Maeda,
Nobuaki Matsumori, Daisuke Mizuno, and Norio Yoshida
Biophysics at Kyushu University Biophysical Reviews, 12, pages245–247(2020); https://doi.org/10.1007/s12551-020-00643-2
Books (2020)
秋山良 安池智一
エントロピーからはじめる熱力学(20)(放送大学教材)
放送大学教育振興会発行
Papers (2019)
Ken Tokunaga and Ryo Akiyama
Molecular dynamics study of a solvation motor in a Lennard-Jones solvent Phys. Rev. E, 100, 062608-1-8 (2019); https://doi.org/10.1103/PhysRevE.100.062608
Ayano Chiba, Akio Oshima, and Ryo Akiyama
Confined Space Enables Spontaneous Liquid Separation by Molecular Size: Selective Absorption of Alkanes into a Polyolefin Cast Film, Langmuir, 35 (52) 17177-17184 (2019); https://pubs.acs.org/doi/full/10.1021/acs.langmuir.9b02509 Supplementary Journal Cover
Yuka Nakamura, Shota Arai, Masahiro Kinoshita, Akira Yoshimori, and Ryo Akiyama
Reduced density profile of small particles near a large particle: Results of an integral equation theory with an accurate bridge function and a Monte Carlo simulation J. Chem. Phys. 151, 044506-1-10 (2019); https://doi.org/10.1063/1.5100040
Ram M. Adar, Yuki Uematsu, Shigeyuki Komura, and David Andelman,
Linear Response Functions of an Electrolyte Solution in a Uniform Flow
Phys. Rev. E 98, 032604 (2018). (10 pages) doi:10.1103/PhysRevE.98.032604
Ayumi Suematsu, Takuto Sawayama, and Ryo Akiyama Effective potential between negatively charged patches on acidic proteins immersedin various electrolyte solutions
J. Chem. Phys. 149, 074105-1-8 (2018); doi: 10.1063/1.5038912
Yuki Uematsu, Roland R. Netz, Lydéric Bocquet, and Douwe J. Bonthuis
Cross-over of the power law exponent for carbon nanotube conductivity as a function of salinity
J. Phys. Chem. B 122, 2992-2997 (2018).(6 pages) doi:10.1021/acs.jpcb.8b01975
Yuki Uematsu, Roland R. Netz, and Douwe J. Bonthuis
Analytical interfacial layer model for the capacitance and electrokinetics of charged aqueous interfaces
Langmuir 34, 9097-9113 (2018)(17 pages) doi:10.1021/acs.langmuir.7b04171
Yuka Nakamura, Akira Yoshimori, Ryo Akiyama, and Tsuyoshi Yamaguchi
Stick boundary condition at large hard sphere arising from effective attraction in binary hard-sphere mixtures
J. Chem. Phys., 148, 124502 (2018); doi: 10.1063/1.5025202
Ken Tokunaga, and Ryo Akiyama Basic cell size dependence of displacement for a solvation motor in a Lennard-Jones solvent
J. Comp. Chem. Jpn., 17, 80–84 (2018); doi: 10.2477/jccj.2018-0004
Yuki Uematsu, Douwe J. Bonthuis, and Roland R. Netz
Charged Surface-Active Impurities At Nanomolar Concentration Induce Jones-Ray Effect
J. Phys. Chem. Lett., 9, 189-193 (2018). doi:10.1021/acs.jpclett.7b02960
Yuki Uematsu, Roland R. Netz, and Douwe J. Bonthuis
The effects of ion adsorption on the potential of zero charge and the differential capacitance of charged aqueous interfaces
J. Phys. Condens. Matter, 30, 064002-1-7 (2018). doi:10.1088/1361-648X/aaa4d4
Reviews (2018)
Hisashi Okumura, Masahiro Higashi, Yuichiro Yoshida, Hirofumi Sato, Ryo Akiyama Theoretical approaches for dynamical ordering of biomolecular systems
Biochimica et Biophysica Acta(BBA) - General Subjects, 1862,212-228 (2018)
Books (2018)
Ryo Akiyama,
Theoretical Studies of Strong Attractive Interaction Between Macro-anions Mediated by Multivalent Metal Cations and Related Association Behavior: Effective Interaction Between ATP-Binding Proteins Can Be Regulated by Hydrolysis
"The Role of Water in ATP Hydrolysis Energy Transduction by Protein Machinery" (Ed. Makoto Suzuki) Springer
https://www.springer.com/jp/book/9789811084584
Papers (2017)
Yuki Uematsu, Roland R. Netz, and Douwe J. Bonthuis
Power-law electrokinetic behavior as a direct probe of effective surface viscosity
Chem. Phys. Lett. 670, 11-15 (2017).
Ayano Chiba, Masanori Inui, Yukio Kajihara, Kazuhiro Fuchizaki, Ryo Akiyama
Isotactic poly(4-methyl-1-pentene) melt as a porous liquid: Reduction of compressibility due to penetration of pressure medium
J. Chem. Phys. 146 194503-1-5 (2017).
Mafumi Hishida, Yoko Nomura, Ryo Akiyama, Yasuhisa Yamamura, and Kazuya Saito
Electrostatic double-layer interaction between stacked charged bilayers
Phys. Rev. E 96, 040601(R)-1-5 (2017)
Books (2017)
植松祐輝
電気二重層における表面層での粘性を見積もる理論
日本化学会コロイドおよび界面化学部会 部会誌 C & I Commun. 42, 34-35 (2017). [PDF]
Papers (2016)
Ayumi Suematsu, Akira Yoshimori, Ryo Akiyama
Effects of interactions between depletants in phase diagrams of binary hard-sphere systems
Europhys Letters, 116 (2016) 38004
Books (2016)
秋山良 安池智一
エントロピーからはじめる熱力学(16)(放送大学教材)
放送大学教育振興会発行
Papers (2014)
Yuka Nakamura, Akira Yoshimori, and Ryo Akiyama
Effects of Solvation Structure on Diffusion of Large Particle in Binary Mixture Studied by Perturbation Theory
(摂動理論による二成分流体中の巨大粒子の拡散における溶媒和構造の効果)
J. Mol. Liq., 200, 85-88 (2014).
Shingo Fujihara, and Ryo Akiyama
Attractive interaction between macroanions mediated by multivalent cations in biological fluids
(生体溶液中における多価カチオン媒介によるマクロアニオン間引力相互作用)
J. Mol. Liq., 200, 89-94(2014).
Ryo Akiyama, Takumi Yamashita, and Shingo Fujihara
Hidden peak of radial distribution function and effective attraction between like-charged proteins caused by translational motion of solvent molecules
(溶媒分子の並進運動効果によって引き起こされる同符号荷電蛋白質分子間実効引力と動径分布関数のかくれたピーク)
J. Mol. Liq., 200, 72-76(2014).
Yuichi Kawabata, and Ryo Akiyama
Choice of the center of water molecules in calculations of partial molar volume of
single ions immersed in water: A molecular simulation study
(水中の単独イオンの部分モル体積の計算における水分子の中心位置の選択：分子シミュレーションによる研究)
J. Mol. Liq., 200, 67-71(2014).
Yuka Nakamura, Akira Yoshimori, and Ryo Akiyama
Perturbation Theory of Large-Particle Diffusion in a Binary Solvent Mixture
(二成分流体中の巨大粒子の拡散の摂動理論)
J. Phys. Soc. Jpn., 83, 064601-1-9(2014)
Others (2014)
R. Akiyama, K. Koga（Guest Editors）
Special Issue: the 7th Mini-Symposium on Liquids
Journal of Molecular Liquids, Vol.200 part A (2014).
Yoji Kubota, Akira Yoshimori, Nobuyuki Matubayasi, Makoto Suzuki and Ryo Akiyama
Molecular Dynamics Study of Fast Dielectric Relaxation of Water around a Molecular-Sized Ion
(分子サイズのイオンの周囲の水の速い誘電緩和の分子動力学)
J. Chem. Phys., 137 (2012) 224502.
Yuko Inayoshi, Akira Yoshimori, and Ryo Akiyama
Perturbation Theory of Large-Particle Diffusion
(巨大粒子の拡散に対する摂動理論)
J. Phys. Soc. Jpn., 81 (2012) 114603-1-10.
Y. Kubota and T. Odagaki
Logic gates based on soliton transmission in the Toda lattice
Advances in Applied Physics 1, 29-38 (2012)
学会論文（査読ありで、実質的に論文としての量と内容があるもの。）
----------------
Yuka Nakamura, Akira Yoshimori, and Ryo Akiyama
A Perturbation Theory for Friction of a Large Particle Immersed in a Binary Solvent
(２成分流体中における巨大粒子の感じる摩擦に対する摂動理論)
J. Phys. Soc. Jpn. 81, SA026-1-7 (2012) (7 pages).
Yukio Kawashima, Satoshi Yamamoto, Tetsuya Sakata, Haruyuki Nakano, Katsura Nishiyama, and Ryo Akiyama
Solvent Effect on the Fluorescence Spectra of Coumarin 120 in Water: A Combined Quantum Mechanical and Molecular Mechanical Study
(水中のクマリン120の蛍光スペクトルにおける溶媒効果：量子および分子力学による研究)
J. Phys. Soc. Jpn. 81, SA024-1-7 (2012)(7 pages).
Ken Tokunaga and Ryo Akiyama
A Model Study of the Conversion of Energy from a Chemical Reaction into Motion through a Solvation Motor
(溶媒和モーターを介した化学反応から動きへのエネルギー変換のモデル研究)
J. Phys. Soc. Jpn. 81, SA019-1-9 (2012)(9 pages).
Yoji Kubota and Ryo Akiyama
Assessment of Three-Dimensional Distribution Functions and Triplet Distribution Functions for Hard Spheres
Calculated using a Three-Dimenstional Ornstein-Zernike Equation with Hypernetted-Chain Closure
(３次元Ornstein-Zernike方的式とHypernetted-Chainを用いた剛体球に対する３次元分布関数と３体分布関数の評価)
J. Phys. Soc. Jpn. 81, SA017-1-7 (2012)(7 pages)
注意： Fig.1(a)MC,(b)3D-HNC-OZが正しい。本文で逆転している。ただし、本文では両者が非常に似ている事しか指摘していない。
Yoji Kubota and Ryo Akiyama
Model Dependence of the Electrostatic Response to a Molecular-Sized Ion in Water
(水中の分子サイズのイオンに対する静電的な応答のモデル依存性)
J. Phys. Soc. Jpn. 81, SA012-1-6 (2012) (6 pages).
Others (2012)
R. Akiyama、K. Koga（Editors）
Proceedings of the 5th Mini-Symposium on Liquids - Fundamental Problems on Liquids and Related Topics -
Supplement A to the Journal of the Physical Society of Japan, Vol. 81 (2012).
Papers (2011)
Ryo Akiyama, Ryo Sakata
An Integral Equation Study of Reentrant Behavior in Attractive Interactions
between Like-Charged Macroions Immersed in an Electrolyte Solution
(積分方程式理論を用いた電解質溶液中の同符号マクロイオン間の引力相互作用におけるリエントラントな挙動の研究)
J. Phys. Soc. Jpn., 80, 123602-1-4(2011).
Yasuhito Karino, Ryo Akiyama, and Masahiro Kinoshita
A Simple Theory for Entropic Interaction Induced between Large Spheres in a Binary Mixture of Small and Medium Spheres
(二成分流体中の巨大球のあいだに誘起されるエントロピー駆動型相互作用に対するシンプルな理論)
J. Phys. Soc. Jpn., 80, 114802-1-8(2011)
Yoji Kubota and Ryo Akiyama
Fine Structure of the Dielectric Response to a Molecular-Sized Ion in Water
(水中の分子サイズのイオンに対する誘電応答の微細構造)
J. Phys. Chem. Lett., 2(13), 1588-1591(2011).
Y. Kubota and K. Nobusada
Exciton-polariton transmission in quantum dot waveguides and a new transmission path due to thermal relaxation
Journal of Chemical Physics 134, 044108-1-8 (2011)
Ryo Akiyama, Ryo Sakata, and Yuji Ide
Reentrant behavior of effective attraction between like-charged macroions immersed in electrolyte solution
(電解質中の同符号マクロイオン間の実効引力に見られるリエントラントな挙動)
AIP Conf. Proc. (NONEQUILIBRIUM STATISTICAL PHYSICS TODAY: Proceedings of the 11th Granada Seminar on Computational and Statistical Physics),
Vol.1332, 265 (2011)
Ken Tokunaga, Takuya Furumi, and Ryo Akiyama
Conversion process of chemical reaction into mechanical work through solvation change
(溶媒和変化を介した化学反応の仕事への変換プロセス)
AIP Conf. Proc. (NONEQUILIBRIUM STATISTICAL PHYSICS TODAY: Proceedings of the 11th Granada Seminar on Computational and Statistical Physics),
Vol.1332, 299 (2011)
Papers (2010)
Ryo Akiyama, Yasuhito Karino, Hokuto Obama, Ayako Yoshifuku
Adsorption of Xenon on a Protein Arising from the Translational
Motion of Solvent Molecules
(溶媒分子の並進運動から生じるキセノンの蛋白質への吸着),
Phys. Chem. Chem. Phys. , 12, 3096-3101(2010).
Others (2010)
秋山良、甲賀研一郎（世話人、とりまとめ）
研究会報告 「4th Mini-Symposium on Liquids -Liquid in Life-」
物性研究 2010年12月号, Vol. 95, No.3, 301-322.
Yasuhito Karino, Ryo Akiyama
Effect of Solvent Granularity on the Activity Coefficient of Macromolecules
(巨大分子の活量係数における溶媒の粒子性の効果),
Chem. Phys. Lett., 478, 180-184(2009).
Yasuhito Karino, Ryo Akiyama, Masahiro Kinoshita
Three Dimensional Density Profiles of Small and Medium Spheres near a Pair of Large Spheres:
Relevance to Entropic Interaction Induced between the Large Spheres
(一対の大粒子の周囲の中粒子と小粒子の３次元密度分布：大粒子間のエントロピー駆動相互作用の検討),
J. Phys. Soc. Jpn., 78, 044801-1-6 (2009).
秋山良、甲賀研一郎（世話人、とりまとめ）
研究会報告 『2nd Mini-Symposium on Liquids -van der Waals pictureの周辺-』
物性研究 2009年3月号, Vol. 91, No.6, 700-720.
吉森明、稲吉裕子、秋山良
Yamaguchi theory and van der Waals picture
（研究会報告 『2nd Mini-Symposium on Liquids -van der Waals pictureの周辺-』）
物性研究 2009年3月号, Vol. 91, No.6., 713-715
Ryo Akiyama, Naohiko Fujino, Kouhei Kaneda, and Masahiro Kinoshita
Interaction between like-charged colloidal particles
in aqueous electrolyte solution:
Attractive component arising from solvent granularity
(単純電解質水溶液中の荷電コロイド粒子間の相互作用：溶媒の粒子性によって生じる
引力）,
Cond. Matt. Phys., 10, 587-596 (2007).
Masahiro Kinoshita, Yuichi Harano, and Ryo Akiyama
Changes in thermodynamic quantities upon contact of two solutes in solvent
under isochoric and isobaric conditions
(定積条件下と定圧条件下での溶媒中の溶質の会合過程の熱力学量における変化）,
J. Chem. Phys., 125, 244504-1-7 (2006)が、
Virtual Journal of Biological Physics Research (July 1, 2007, Vol. 13 )に転載.
Others (2007)
秋山良
研究室めぐり東西南北
溶液化学研究会ニュース, 58, 6-9, June 20, 2007.
Papers (2006)
Masahiro Kinoshita, Yuichi Harano, and Ryo Akiyama
Changes in thermodynamic quantities upon contact of two solutes in solvent
under isochoric and isobaric conditions
(定積条件下と定圧条件下での溶媒中の溶質の会合過程の熱力学量における変化）,
J. Chem. Phys., 125, 244504-1-7 (2006).
Ryo Akiyama, Yasuhito Karino, Yasuhiro Hagiwara, Masahiro Kinoshita
Remarkable Solvent Effects on Depletion Interaction in Crowding Media:
Analyses by the Integral Equation Theories
(混み合った媒質中の枯渇相互作用における顕著な溶媒効果：
積分方程式理論を用いた解析),
J. Phys. Soc. Jpn., 75, 064804-1-7 (2006).
秋山良、狩野康人、木下正弘
用語解説（フロギストン）
積分方程式理論、枯渇相互作用、平均力ポテンシャル
(integral equation theory, depletion interaction, potential of mean force)
熱測定、33(3), 134-135, (2006).
秋山良、狩野康人、木下正弘
解説（査読あり）
溶媒分子の並進運動由来の巨大分子間引力相互作用と熱測定
(Calorimetry and Macromolecular Interaction Arising from Translational Motion of Solvent Molecules)
熱測定、33(3), 104-113, (2006).
Papers (2005)
なし。とても苦しい年でした。
Papers (2004)
早川洋一、秋山良、宗原弘幸
ヨコスジカジカHemilepidotus gilberti の異型精子による卵塊への
正型精子輸送機能に関するモデル的検証
(Y. Hayakawa, R. Akiyama, and H. Munehara
Antidispersive effect induced by parasperm contained in semen of
a cottid fish Hemilepidotus gilberti: Estimation by models and experiments)
(in Japanese), 魚類学雑誌51巻1号(Japanese Journal of Ichthyology, 51(1)),33-42(2004)
Ryoichi Kuwano, Kohei Kaneda, Takashi Ito, Koji Sato, Tkashi Krokawa, and Yoshihiko Ito
Highly Enantioselective Synthesis of Chiral 3-Substituted Indolines by Catalytic Asymmetric
Hydrogenation of Indoles,
Organic Letters, 6(13), 2213-2215(2004).
(M1の金田君の卒研の論文なので一応ご紹介。桑野さん（構造有機化学)のグループでの研究の論文ですよ。）
Kusai A. Merchant, W. G. Noid, David E. Thompson, Ryo Akiyama,
Roger F. Loring, and M. D. Fayer,
Structural Assignments and Dynamics of the A Substates of MbCO:
Spectrally Resolved Vibrational Echo Experiments and Molecular
Dynamics Simulations
(一酸化炭素結合型ミオグロビンのA Substatesの構造の帰属とダイナミクス：
波長分解振動エコー実験と分子動力学シミュレーション),
J. Phys. Chem. B, 107, 4-7 (2003).
Ryo Akiyama and Roger F. Loring
Quantum Solvent and Solute Effects in the Infrared Vibrational Echo
(赤外振動エコーにおける溶媒及び溶質の量子効果)
J. Phys. Chem. A, 107, 8024-8028(2003)
(Part of the special issue "A. C. Albrecht Memorial Issue").