| Takahiro Sakaue | Last modified date：2013.5.15 |
Graduate School
Undergraduate School
E-Mail
Homepage
[URL].
Phone
092-642-2567
Fax
092-642-2553
Academic Degree
Science
Field of Specialization
Statistical Physics
Outline Activities
My research activity has been focused on the statistical physics of Softmatter. A group of materials called “Softmatter” is a representative example, in which the concept of the hierarchy plays a crucial role. Since it also provides a good approaching to the biological problems from the standpoint of physics. I have investigated the biologically inspired problem, too. The main scientific achievements so far can be categorized as follows;
1) Physics of confined polymers
2) Nonequilibrium dynamics of single polymers: nano-rheology
3) Fluctuation and rensponse in out-of-equilibrium system
4) Higher-order structural transition in DNA
5) Physics of chromatin and nucleosome
1) Physics of confined polymers
2) Nonequilibrium dynamics of single polymers: nano-rheology
3) Fluctuation and rensponse in out-of-equilibrium system
4) Higher-order structural transition in DNA
5) Physics of chromatin and nucleosome
Research
Research Interests
Awards
- Electro-rheology of immiscible blends
keyword : electro-rheology, phase separation, interface, emulsion
2012.04～2012.04. - Statistical Physics of Ring Polymers
keyword : ring polymer, topology, bond correlation function
2008.09～2010.09. - Conformational Transition of Giant DNA Molecules
keyword : DNA, coil-globule transition, chromatin, chromosome
2000.04～2009.06. - Nonequilibrium Fluctuations
keyword : out-of-equilibrium, fluctuation-dissipation relation, reciprocal relation
2006.12～2010.12. - Physics of Confined Polymers
keyword : polymer, confinement
2004.06～2007.06. - Nonequilibrium Dynamics of Single Polymers
keyword : single molecule experiments, polymer translocation
2005.12～2009.12.
Books
| 1. | Takahiro Sakaue and Kenichi Yoshikawa,Water and Biomolecules – Physical Chemistry of Life Phenomena,Chapter 3 “Transition in the higher-order structure of DNA in aqueous solution",2009.03. |
Papers
| 1. | Takahiro Sakaue,Memory Effect and Fluctuating Anomalous Dynamics of a Tagged Monomer,Phys. Rev. E,Vol.87,2013.04. |
| 2. | Takahiro Sakaue, Takuya Saito, Hirofumi Wada,Dragging a polymer in a viscous fluid: Steady state and transient,Physical Review E,Vol.86,2012.07. |
| 3. | T. Sakaue,Ring Polymers in Melts and Solutions: Scaling and Crossover,Physical Review Letters,Vol.106,pp.167802,2011.04. |
| 4. | T. Sakaue, G. Witz, G. Dietler and H. Wada,Universal bond correlation function for two-dimensional polymer rings,Europhys. Lett.,Vol.91,pp.68002,2010.10. |
| 5. | T. Sakaue,Sucking genes into pores: Insight into driven translocation,Physical Review E,Vol.81,pp.041808,2010.04. |
| 6. | Makiko Negishi, Takahiro Sakaue and Kenichi Yoshikawa,Mismatch of bulk viscosity reduces interfacial diffusivity at an aqueous/oil system,Phys. Rev. E,Vol.81,pp.020901,2010.02. |
| 7. | Takahiro Sakaue and Hartmut Loewen,Unwrapping of DNA-protein Complexes under External Stretchin,Physical Review E,vol. 70, 021801,2004.07. |
| 8. | Takahiro Sakaue, Elie Raphael, Pierre-Gilles de Gennes and Francoise Brochard-Wyart,Flow-injection of Branched Polymers inside Nanopores,Europhysics Letters,vol. 72, 83-88,2005.10. |
| 9. | Takahiro Sakaue and Elie Raphael,Polymer Chains in Confined Spaces and Flow-injection Problems: Some Remarks,Macromolecules,vol. 39, 2621-2628,2006.03. |
| 10. | Takahiro Sakaue,DNA Electrophoresis in Designed Channels,European Physical Journal E,vol. 19, 477-487,2006.04. |
| 11. | Takahiro Sakaue and Kenichi Yoshikawa,On the Formation of Rings-on-a-string Conformations in a Single Polyelectrolyte Chain: A Possible Scenario,Journal of Chemical Physics,vol. 125, 074904,2006.09. |
| 12. | A. A.Zinchenko, T. Sakaue, S. Araki, K. Yoshikawa, D. Baigl,Single-Chain Compaction of Long Duplex DNA by Cationic Nanoparticles: Modes of Interaction and Comparison with Chromatin,Journal of Physical Chemistry B,vol. 111, 3019-3031,2007.02. |
| 13. | Takahiro Sakaue,Semiflexible Polymer Confined in Closed Spaces,Macromolecules,vol. 40, 5206-5211,2007.06. |
| 14. | Takahiro Sakaue,Nonequilibrium Dynamics of Polymer Translocation and Straightening,Physical Revie,vol. 76, 021803,2007.08. |
| 15. | Takahiro Sakaue and Takao Ohta,Probing Nonequilibrium Fluctuations through Linear Respons,Physical Review E,vol. 77, 050102,2008.05. |
| 16. | Takahiro Sakaue and Natsuhiko Yoshinaga,Dynamics of Polymer Decompression: Expansion, Unfolding and Ejection,Physical Review Letters,Vol. 102, 148302,2009.04. |
Presentations
| 1. | Asymmetric response and fluctuation in nonequilibrium steady state. |
| 2. | Statistical physics of two-dimensional ring polymers. |
| 3. | Diffusion at interface. |
- Constrained Polymers: geometrical, mechanical, and topological effects
- Conformational transition of a semiflexible polymer chain: effect of chain length, stiffness and electrostatics
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