Physics on interfacial tension under nonequilibrium conditions

2008 Fiscal Year Final Research Report

• Project/Area Number: 18740231
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Mathematical physics/Fundamental condensed matter physics
• Research Institution: Chiba University (2008); Kyoto University (2006-2007)
• Principal Investigator: KITAHATA Hiroyuki Chiba University, 大学院理学研究科, 講師 (20378532)
• Project Period (FY): 2006 – 2008
• Keywords: 界面張力 / 反応拡散系 / 非平衡開放系 / 自発運動 / Marangoni対流

Research Abstract

表面張力という概念は、身近な現象にも多く見られ、古くから研究されてきた。しかしながら、その研究対象はほとんどが時間変化しない系に対してのものであった。時間変化する系、すなわち非平衡系において表面張力をどのように理解すればよいかという問題は非常に重要である。そこで、本研究において、表面張力が時間変化し、かつ制御・観測が容易な実験系を構築した。また、その数理モデル化などを通して、非平衡系における表面張力の理解に迫り、流体方程式との組み合わせによってある程度は評価できることを示した。

Research Products

• [Journal Article] High-aspect-ratio gold nanorods synthesized in a surfactant gel phase (2009)
  • Author(s): *Y. Takenaka and H. Kitahata
  • Journal Title: Chem. Phys. Lett. 467 Pages: 327-330
  • Peer Reviewed
• [Journal Article] Homogenization of a phase-separated droplet in a polymer mixture caused by the dielectric effect of a laser (2008)
  • Author(s): H. Toyama, *K. Yoshikawa, and H. Kitahata
  • Journal Title: Phys. Rev. E 78 Pages: 060801
  • Peer Reviewed
• [Journal Article] Rhythmic oscillation and dynamic instability of micrometer-sized phase- separation under continuous photon-flux by a focused laser (2008)
  • Author(s): K. Sadakane, H. Kitahata, H. Seto and *K. Yoshikawa
  • Journal Title: Phys. Rev. E 78 Pages: 046214
  • Peer Reviewed
• [Journal Article] The Influence of a Gradient Static Magnetic Field on an Unstirred Belousov- Zhabotinsky Reaction (2008)
  • Author(s): *H. Okano, H. Kitahata, D. Akai, and N. Tomita
  • Journal Title: Bioelectromagnetics 29 Pages: 598-604
  • Peer Reviewed
• [Journal Article] Oscillation of a water surface in contact with a fixed camphor disk (2008)
  • Author(s): H. Kitahata, K. Kawata, Y. Sumino, and *S. Nakata
  • Journal Title: Chem. Phys. Lett. 457 Pages: 254-257
  • Peer Reviewed
• [Journal Article] T. Ichino, T. Asahi, H. Kitahata, N. Magome, K. Agladze, and *K. Yoshikawa (2008)
  • Author(s): Micro-freight delivered by chemical waves
  • Journal Title: J. Phys. Chem. C 112 Pages: 3032-3035
  • Peer Reviewed
• [Journal Article] Large-scale on-off switching of genetic activity mediated by the folding-unfolding transition in a giant DNA molecule: An hypothesis (2008)
  • Author(s): *Y. Takenaka, H. Nagahara, H. Kitahata, and K. Yoshikawa
  • Journal Title: Phys. Rev. E 77 Pages: 031905
  • Peer Reviewed
• [Journal Article] Plastic bottle oscillator: Rhythmicity and mode bifurcation of fluid flow (2007)
  • Author(s): M. I. Kohira, N. Magome, H. Kitahata, and *K. Yoshikawa
  • Journal Title: Am. J. Phys. 75 Pages: 893-895
  • Peer Reviewed
• [Journal Article] Characteristic Features in the Collision of Chemical Waves Depending on the Aspect Ratio of a Rectangular Field (2007)
  • Author(s): M. Matsushita, *S. Nakata, and H. Kitahata
  • Journal Title: J. Phys. Chem. A 111 Pages: 5833-5838
  • Peer Reviewed
• [Journal Article] Survival versus collapse: Abrupt drop of excitability kills the traveling pulse, while gradual change results in adaptation (2007)
  • Author(s): M. Tanaka, H. Nagahara, H. Kitahata, V. Krinsky, K. Agladze, and *K. Yoshikawa
  • Journal Title: Phys. Rev. E 76 Pages: 016205
  • Peer Reviewed
• [Journal Article] Blebbing dynamics in an oil-water- surfactant system through the generation and destruction of a gel-like structure (2007)
  • Author(s): Y. Sumino, H. Kitahata, H. Seto, and *K. Yoshikawa
  • Journal Title: Phys. Rev. E 76 Pages: 055201
  • Peer Reviewed
• [Journal Article] Spontaneous motion of a droplet coupled with a chemical reaction (2006)
  • Author(s): *H. Kitahata
  • Journal Title: Prog. Theor. Phys. Suppl. 161 Pages: 220-223
  • Peer Reviewed
• [Journal Article] Change in the Mode of Spontaneous Motion of an Alcohol Droplet Caused by a Temperature Change (2006)
  • Author(s): K. Nagai, Y. Sumino, H. Kitahata, and *K. Yoshikawa
  • Journal Title: Prog. Theor. Phys. Suppl. 161 Pages: 286-289
  • Peer Reviewed
• [Journal Article] Interactive Propagation of Photosensitive Chemical Waves on Two Circular Routes (2006)
  • Author(s): *S. Nakata, S. Morishima, and H. Kitahata
  • Journal Title: J. Phys. Chem. A 110 Pages: 3633-3637
  • Peer Reviewed
• [Journal Article] Chemical Reaction-Inspired Crystal Growth of a Coordination Polymer toward Morphology Design and Control (2006)
  • Author(s): S. Masaoka, D. Tanaka, H. Kitahata, S. Araki, R. Matsuda, K. Yoshikawa, K. Kato, M. Takata, and *S. Kitagawa
  • Journal Title: J. Am. Chem. Soc. 128 Pages: 15799-15808
  • Peer Reviewed
• [Journal Article] Coexistence of Wave Propagation and Oscillation in the Photosensitive Belousov- Zhabotinsky Reaction on a Circular Route (2006)
  • Author(s): *S. Nakata, S. Morishima, T. Ichino, and H. Kitahata
  • Journal Title: J. Phys. Chem. A 110 Pages: 13475-13478
  • Peer Reviewed
• [Presentation] 非平衡系における界面張力変化とMarangoni対流 (2009)
  • Author(s): 北畑裕之
  • Organizer: 日本物理学会第64回年次大会
  • Place of Presentation: 立教大学池袋キャンパス
  • Year and Date: 20090327-30
• [Presentation] レーザー場上での高分子混合溶液系の相分離ダイナミクス (2009)
  • Author(s): 北畑裕之
  • Organizer: 第17回「非線形反応と協同現象」研究会
  • Place of Presentation: 同志社大学京田辺キャンパス
  • Year and Date: 2009-01-10
• [Presentation] ロウソクの燃焼における自律振動と同期現象 (2008)
  • Author(s): 北畑裕之
  • Organizer: 日本物理学会2008年秋季大会
  • Place of Presentation: 岩手大学上田キャンパス
  • Year and Date: 20080920-23
• [Presentation] Oscillation and synchronization in the combustion of candles (2008)
  • Author(s): H. Kitahata
  • Organizer: Dynamics Days Asia Pacific 5
  • Place of Presentation: 奈良県新公会堂
  • Year and Date: 20080909-12
• [Presentation] 化学波により誘起されるMarangoni対流とその制御 (2008)
  • Author(s): 北畑裕之
  • Organizer: 第61回コロイドおよび界面化学討論会
  • Place of Presentation: 九州大学六本松キャンパス
  • Year and Date: 20080907-09
• [Presentation] 水-樟脳系における界面振動現象 (2008)
  • Author(s): 北畑裕之,川田紘平,住野豊,中田聡
  • Organizer: 日本化学会第88春季年会
  • Place of Presentation: 立教大学池袋キャンパス
  • Year and Date: 20080326-30
• [Presentation] 非平衡系における界面振動現象 (2008)
  • Author(s): 北畑裕之,川田紘平,住野豊,中田聡
  • Organizer: 日本物理学会第63回年次大会
  • Place of Presentation: 近畿大学本部キャンパス
  • Year and Date: 20080322-26
• [Presentation] パターン形成における環境変化や境界条件の影響:BZ反応を用いて (2008)
  • Author(s): 北畑裕之
  • Organizer: 第17回「非線形反応と協同現象」研究会
  • Place of Presentation: 千葉大学西千葉キャンパス
  • Year and Date: 2008-01-12
• [Presentation] 反応拡散系と対流の結合によるパターン形成 (2007)
  • Author(s): 北畑裕之
  • Organizer: 日本物理学会第62回年次大会
  • Place of Presentation: 北海道大学札幌キャンパス
  • Year and Date: 20070921-24
• [Presentation] Pattern Formation in Reaction-Diffusion- Convection Systems (2007)
  • Author(s): H. Kitahata
  • Organizer: Summer School "Morphogenesis through the interplay of nonlinear chemical instabilities and elastic active media"
  • Place of Presentation: Institut d'Etudes Scientifiques de Cargese, Cargese, France
  • Year and Date: 20070702-14
• [Presentation] BZ反応微小液滴の自発的運動 (2007)
  • Author(s): 北畑裕之
  • Organizer: 日本化学会第87春季年会
  • Place of Presentation: 関西大学千里山キャンパス
  • Year and Date: 20070325-28
• [Presentation] BZ反応液滴の自発運動の機構と制御 (2007)
  • Author(s): 北畑裕之
  • Organizer: 日本物理学会2007年春季大会
  • Place of Presentation: 鹿児島大学
  • Year and Date: 20070318-21
• [Presentation] 水・樟脳系における界面の振動 (2007)
  • Author(s): 北畑裕之,川田紘平,中田聡
  • Organizer: 第16回非線形反応と協同現象研究会
  • Place of Presentation: 慶応義塾大学
  • Year and Date: 2007-01-13
• [Presentation] Spontaneous motion coupled with reaction- diffusion system (2006)
  • Author(s): H. Kitahata, Y. Sumino, K. Nagai, and K. Yoshikawa
  • Organizer: International Workshop on Synchronization: Phenomena and Analyses 2006
  • Place of Presentation: 東京大学駒場キャンパス
  • Year and Date: 20061003-06
• [Presentation] 非平衡系における表面変形のダイナミクス (2006)
  • Author(s): 北畑裕之
  • Organizer: 日本物理学会2006年秋季大会
  • Place of Presentation: 千葉大学
  • Year and Date: 20060927-30
• [Presentation] 水-樟脳系における界面振動現象 (2006)
  • Author(s): 北畑裕之,中田聡
  • Organizer: 第59回コロイドおよび界面化学討論会
  • Place of Presentation: 北海道大学
  • Year and Date: 20060913-15
• [Presentation] Spontaneous motion of a droplet driven by chemical potential or photon flux (2006)
  • Author(s): H. Kitahata and K. Yoshikawa
  • Organizer: 4th International Symposium "Engineering of Chemical Complexity"
  • Place of Presentation: Fritz-Haber-Institut, Max- Planck-Gesellschaft, Berlin, Germany
  • Year and Date: 20060607-09