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Annaka Masahiko Last modified date:2018.06.08

Professor / Physical Chemistry
Department of Chemistry
Faculty of Sciences


Graduate School
Undergraduate School


E-Mail
Phone
092-802-4118
Fax
092-802-4126
Academic Degree
Doctor of Science
Country of degree conferring institution (Overseas)
No
Field of Specialization
Physical Chemistry for Soft Matters, Biomaterials
Total Priod of education and research career in the foreign country
00years00months
Outline Activities
"Soft matter" is a generic name for materials such as polymers,liquid crystals, colloids, emulsions and biological materials. Among the places where its presence is ubiquitous is in the food,cosmetic and electronics industries and its absence would make modern life unthinkable. The main objective of our project is to clarify the structure, formation and non-equilibrium states of the assemblies of these soft molecules under various external fields, flow fields, electric and magnetic fields, mechanical stresses and optical illuminations. We approach these questions by means of experiment, theoretical investigation and computer simulation of the structure and dynamics of mesoscopic systems.
Research
Research Interests
  • Formation of micelle network of telechelic hydrophobically-modified water-soluble polymers and their dynamics
    keyword : hydrophobically-modified water-soluble polymers, micelle network, dynamics
    2010.04~2019.03.
  • In-situ observation of vitreous body
    keyword : vitreous body, In-situ observation
    2011.04~2019.03.
  • Development of Artificial Vitreous Substitute with Tamponade Effect
    keyword : Artificial vitreous substitute, Tamponade effect
    2010.04~2019.03.
  • Development of Injectable Intraocular Lens Materials based on Hydrogel
    keyword : Lens, Hydrogl, Injectable
    2010.04~2019.03.
  • Bioseparation
    keyword : chromatography, stimuli-responsive, micro-fluid system, Lab-on-chip
    2005.04~2010.03.
  • Structure and physical properties of Biohydrogel
    keyword : biopolymer, eye, vitreous body, cornea
    2000.04~2020.03.
  • Self-assembly of hydrophobically-modified water-soluble polymers
    keyword : hydrophobically-modified water-soluble polymers, micelle network, dynamics
    2000.04~2020.03.
  • Structural Change in Polymer Brush and Its Dynamics
    keyword : polymer brush, Coil-BrushTransition, Living Radical Polymerization
    2005.04~2020.03.
  • Physical Chemistry of Origin of Life
    keyword : Polymer, Phase Transition, Multiple Phases, Flutration, Molecular Recognition
    1996.04~2025.03.
  • Gelation Dynamics of Polysaccharide
    keyword : Polysaccharide, Gelation
    1998.04~2025.05.
Academic Activities
Papers
1. Annaka Masahiko, Salt effect on microscopic structure and stability of colloidal complex obtained from neutral/polyelectrolyte block copolymer and oppositely charged surfactant, Colloid and Surface B, Biointerface, 99, 127-135, 2012.11.
2. Masahiko Annaka, Kell Mortrensen, Toyoaki Matsuura, Masaya Ito, Katsunori Nochioka, Nahoko Ogata, Organic–inorganic nanocomposite gels as an in situ gelation biomaterial for injectable accommodative intraocular lens, Soft Matter, 8, 7185-7196, 2012.08.
3. Masahiko Annaka, Toyoaki Matsuura, Shinji Maruoka, Nahoko Ogata, Dehydration and vitrification of corneal gel, Soft Matter, 8, 11, 8157-8163, 2012.03.
4. Tuyoshi Matsuda and Masahiko Annaka, Effect on Complex Formation of Neutral/Polyelectrolyte Block Copolymer and Oppositely Charged Surfactant, Langmuir, in press, 2008.06.
5. C. Yahiro, M. Annaka, A. Kikuchi and T. Okano, Collapse and Swelling of Thermosensitive Poly(N-isopropylacrylamide) Brushes Monitored by a Quartz Crystal Microbalance, Transaction of Materials Research Sosiety of Japan, 32, 807-810, 2007.10.
6. M. Annaka, K. Morishita, Electrostatic Self-Assembly of Neutral/Polyelectrolyte Block Copolymer and Oppositely Charged Surfactant,, Journal of Physical Chemistry B, 2007.10.
7. M. Annaka, M. Okamoto, T. Matsuura, Y. Hara, S. Sasaki, Dynamic Light Scattering Study of Salt Effect on Phase Behavior of Pig Vitreous Body and Its Microscopic Implication, Journal of Physical Chemistry B, 111, 8411-8418 , 2007.09.
8. M. Annaka, C. Yahiro, K. Nagase, A. Kikuchi and T. Okano, Real-time observation of coil-to-globule transition in thermosensitive poly(N-isopropyl acrylamide) brushes by quartz crystal microbalance, Polymer, 48, 5713-5720, 2007.05.
9. M. Annaka, T. Matsuura, E. Yoshimoto, H. Taguchi, M. Sugiyama, Y. Hara and T. Okano, Study on the Rapid Deswelling Mechanism of comb-type N-isopropylacrylamide gels, Colloids and Surfaces B, 10.1016/j.colsurfb.2004.03.021, 38, 3-4, 201-207, in press, 2004.12.
10. T. Matsuura, Y. Hara, F. Taketani, E. Yukawa, S. Maruoka, K. Kawasaki and M. Annaka, Volume Phase Transition of Bovine Vitreous Body and Determination of Its Dynamics, Biomacromolecules, 10.1021/bm049954y, 5, 5, 1296-1302, in press, 2004.09.
11. O. Shoji, D. Nakajima, M. Ohkawa, Y Fujiwara, M. Annaka, M. Yoshikuni, and T. Nakahira, Temperature Dependence of Circular Dichroism and Fluorescence Decay of Pyrene Appended to the Side Chains of Poly-L-glutamine, Macromolecules, vol.36, pp.4557-4566, 2002.01.
12. M. Sugiyama, A. Nakamura, N. Hiramatsu, M. Annaka and K. Hara, Effect of Salt and Heating on a Mesoscopic Structure Composed of Ovalbumin Globules in Aqueous Solution, Biomacromolecules, 10.1021/bm015541a, 2, 4, 1071-1073, vol.2, pp.1071-1073, 2001.01.
13. M. Tokita, S. Yamazaki, M. Itakura, K. Miyamoto, T Komai and M. Annaka, Swelling Behaviors of Polyamphoteric Gels, Transaction of Materials Research Sosiety of Japan, vol.25, pp.779-782, 2000.01.
14. T. Tanaka and M. Annaka, Multiple Phases of Polymer Gels and Its Biological Implications, Die Makromoleculare Chemie Symposium, 70/71, 13-22, vol.70/71, pp.13-22, 1993.12.
15. M. Annaka, T. Tanaka and Y. Osada, Volume Phase Transitions of Gels in Hydrocarbon, Macromolecules, vol.25, pp.4826-4827, 1992.01.
16. M. Annaka and T. Tanaka, Multiple Phases of Polymer Gels, Nature, vol.355, pp.430-432, 1992.01.
Membership in Academic Society
  • American Chemical Sciety
  • American Physical Society
  • Japanese Retina and Vitreous Society
Educational
Educational Activities
(Lecture) Polymer Chemistry
Physical Chemistry
Thermodynamics
Statistical Chemistry
Biomaterials Chemistry