Dr. Akiyama will attend the international conference to talk about his research topic on surface treatment of PP.
WCARP 2018

Contact us


Tsukuba Central 5-2, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan

Dr. Yoko MATSUZAWA (Group Leader)
yoko-matsuzawa @


Reusable adhesive

Self-healing materials

Photofunctional dispersants

Group Members

Research Scientists

Dr. Haruhisa AKIYAMA
Dr. Takahiro YAMAMOTO
Dr. Hirokuni JINTOKU
Dr. Yoshiko TAKENAKA

Technicians, etc.


Visiting Students

Mioka Koike
Koyomi Nakazawa
Kaori Takatsuki



5. Z.-M. Wang; W. Peng; Y. Takenaka; N. Yoshizawa; K. Kosuge; W. Wang; G. A. Ozin
Sandwich-type Nanocomposite of Reduced Graphene Oxide and Periodic Mesoporous Silica with Vertically Aligned Mesochannels of Tunable Pore Depth and Size
Advanced Functional Materials DOI: org/10.1002/adfm.201704066 

4. Jintoku, H. Sato, T. Nakazumi, T. Matsuzawa, Y. Kihara, H. Yoshida, M.
Formation of Highly Pure and Patterned Carbon Nanotube Films on a Variety of Substrates by a Wet Process Based on Light-Induced Dispersibility Switch
Acs Applied Materials & Interfaces  Article ASAP DOI: 10.1021/acsami.7b07184

 3. Takenaka, Y. Yamamoto, T.
Light-induced displacement of a microbead through the thermal expansion of liquid crystals
Soft Matter, 13, 1116-1119 DOI 10.1039/c6sm02324j

2. Kurimura, T. Takenaka, Y. Kidoaki, S. Ichikawa, M.
Fabrication of Gold Microwires by Drying Gold Nanorods Suspensions
Advanced Materials Interfaces, 4 DOI 10.1002/admi.201601125

1. Y. Matsuzawa, C. Negoro, H. Jintoku, H. Kihara, M. Yoshida
Formation of a Lyotropic Liquid Crystal Phase in a Single Walled Carbon Nanotube Aqueous Ink with Low-molecular-weight Electrolyte
Chemistry Letters, 46, 1186-1189 DOI 10.1246/cl.170370 


6. Jintoku, H. Matsuzawa, Y. Kihara, H. Yoshida, M.
Dispersibility Switching of Carbon Nanotubes and Carbon Black by the Photoisomerization of a Cationic Azobenzene Derivative
Chemistry Letters, 45, 1307-1309 DOI 10.1246/cl.160648  

5. Kawata, Y. Yamamoto, T. Kihara, H. Yamamura, Y. Saito, K. Ohno, K.
Three Gel States of Colloidal Composites Consisting of Polymer-Brush-Afforded Silica Particles and a Nematic Liquid Crystal with Distinct Viscoelastic and Optical Properties
Acs Applied Materials & Interfaces, 8, 29649-29657, DOI 10.1021/acsami.6b07893 

4. Matsuzawa, Y. Takada, Y. Jintoku, H. Kihara, H. Yoshida, M.
Photopatterned Single-Walled Carbon Nanotube Films Utilizing the Adsorption/Desorption Processes of Photofunctional Dispersants
Acs Applied Materials & Interfaces, 8, 28400-28405, DOI 10.1021/acsami.6b06169

3. Naga, N. Okada, A. Satoh, Y. Furukawa, H. Yamamoto, T.
Synthesis and properties of organic–inorganic hybrid liquid crystal gels
Liquid Crystals, 43, 1616-1625 DOI 10.1080/02678292.2016.1191684

2. Akiyama, H., Fukata T. Yamashita, A. Yoshida, M. Kihara, H.
Reworkable adhesives composed of photoresponsive azobenzene polymer for glass substrates
Journal of Adhesion, 93, 823-830, 2017, DOI 10.1080/00218464.2016.1219255

1. Shi, Y. Yang, J.,Zhao, J., Akiyama, H., Yoshida, M.
Photo-controllable coil-to-globule transition of single polymer molecules
Polymer, 97, 309-313, DOI 10.1016/j.polymer.2016.05.036


5. Kawata, Y. Yamamoto, T. Kihara, H. Ohno, K.
Dual Self-Healing Abilities of Composite Gels Consisting of Polymer-Brush-Afforded Particles and an Azobenzene-Doped Liquid Crystal
Acs Applied Materials & Interfaces, 7, 4185-4191 DOI 10.1021/am5084573 

4. Nishiyama, I. Yamamoto, T.
Photo- or electrically-induced molecular organizations observed in dichiral azobenzene liquid-crystalline compounds
Molecular Crystals and Liquid Crystals, 614, 86-92 DOI 10.1080/15421406.2015.1050277

3. Yamamoto, T. Kawata, Y. Kihara, H. Yoshida, M.
Helical-structure-induced softening of particle/liquid-crystal composite gels
Transactions of the Materials Research Society of Japan, 40, 335-338 DOI 10.14723/tmrsj.40.335

2. Yamamoto, T. Nishiyama, I.
Electric-induction and photonic-control of birefringence in a liquid phase of a dichiral azobenzene mesogenic compound
Transactions of the Materials Research Society of Japan, 40, 339-342 DOI 10.14723/tmrsj.40.339

1. Takenaka, Y
One-pot synthesis of long twin gold nanorods in a gelled surfactant solution
RSC ADVANCES, 5, 34690-34695 DOI:10.1039/C4RA17031H


9. Takenaka, Y.
Aspect-ratio-controlled Au Nanorods: Preparation and Dispersion toward Applications
Materials Challenges and Testing for Manufacturing, Mobility, Biomedical Applications and Climate, 161-165 DOI 10.1007/978-3-319-11340-1_16

8. Tsuchiya, M. Hashimoto, M. Takenaka, Y. Motoike, N. I. Yoshikawa, K.
Global Genetic Response in a Cancer Cell: Self-Organized Coherent Expression Dynamics
PLOS ONE, 9-5, e97411 1-16

7. Hara, Y. Takenaka, Y.
Autonomous Oscillation of Polymer Chains Induced by the BelousovZhabotinsky Reaction
SENSORS, 14-1, 1497-1510 doi:  10.3390/s140101497

6. Takenaka, Y. Sumino, Y. Ohzono, T.
Dewetting of a droplet induced by the adsorption of surfactants on a glass substrate
SOFT MATTER, 10, 5597-5602 DOI:10.1039/C4SM00798K

5. Yamamoto, T. Nishiyama, I.
An electrically-stabilized liquid-crystalline phase: origin and application
Physical Chemistry Chemical Physics, 16, 26707-26710 DOI 10.1039/c4cp04643a

4. Akiyama, H. Yoshida, M. Kihara, H. Norikane, Y. Azumi, R.
Organic Photofunctional Materials Composed of Azobenzene Derivatives: Liquid-solid Phase Transition in Multi Azobenzene Compounds with Partially Substituted Structures
Journal of Photopolymer Science and Technology, 27, 301-305

3. Akiyama, H. Kanazawa, S. Yoshida, M. Kihara, H. Nagai, H. Norikane, Y. Azumi, R.
Photochemical Liquid-Solid Transitions in Multi-dye Compounds
Molecular Crystals and Liquid Crystals, 604, 604 DOI 10.1080/15421406.2014.967743

2. Akiyama, H. Kanazawa, S. Okuyama, Y. Yoshida, M. Kihara, H. Nagai, H. Norikane, Y. Azumi, R.
Photochemically Reversible Liquefaction and Solidification of Multiazobenzene Sugar-Alcohol Derivatives and Application to Reworkable Adhesives
Acs Applied Materials & Interfaces, 6, 7933-7941, DOI 10.1021/am501227y 

1. Matsuzawa, Y. Takada, Y. Kodaira, T. Kihara, H. Kataura, H. Yoshida, M.
Effective Nondestructive Purification of Single-Walled Carbon Nanotubes Based on High-Speed Centrifugation with a Photochemically Removable Dispersant
Journal of Physical Chemistry C, 118, 5013-5019, DOI 10.1021/jp411964z


5. Hara, Y. Mayama, H. Yamagushi, Y. Takenaka, Y. Fukuda, R.
Direct Observation of Periodic Swelling and Collapse of Polymer Chain Induced by the Belousov–Zhabotinsky Reaction
JOURNAL OF PHYSICAL CHEMISTRY B, 117-46, 14351-14357 DOI: 10.1021/jp408417h

4. Iwai, M. Chan-Gi, P. Takenaka, Y. Sakou, Y. Nakano, A.
Photosystem II antenna phosphorylation-dependent protein diffusion determined by fluorescence correlation spectroscopy
SCIENTIFIC REPORTS, 3-2833, 1-7 doi:  10.1038/srep02833

3. Tsunemi, E. Kobayashi, K. Ohyabu, N. Hirose, M. Takenaka, Y. Matsushige, K. Yamada, N.
Development of multi-environment dual probe atomic force microscopy system using optical beam deflection sensors with vertically incident laser beams

2. Yamamoto, T. Kawata, Y. Yoshida, M.
Contrasting roles of layered structures in the molecular assembly of liquid crystal matrices on the viscoelastic properties of microparticle/liquid crystal composite gels leading to rigidification and destabilization
Journal of Colloid and Interface Science, 397, 131-136, DOI 10.1016/j.jcis.2013.01.039

1. Takenaka, Y. Kawabata, Y. Kitahata, H. Yoshida, M. Matsuzawa, Y. Ohzono, T.
Effects of surfactant concentration on formation of high-aspect-ratio gold nanorods
Journal of Colloid and Interface Science, 407, 265-272, DOI 10.1016/j.jcis.2013.06.008


6. Ohzono, T. Takenaka, Y. Fukuda, J.
Focal conics in a smectic-A liquid crystal in microwrinkle grooves
SOFT MATTER, 8, 6438-6444 DOI:10.1039/C2SM25416F

5. Takenaka, Y. Kitahata, H. Yamada, N. L. Seto, H. Hara, M.
Gelation Effect on the Synthesis of High-Aspect-Ratio Gold Nanorods
Journal of Nanoscience and Nanotechnology, 12, 714-718 DOI 10.1166/jnn.2012.5405 

4. Takenaka, Y. Kawabata, Y. Kitahata, H. Ohzono, T.
Control of the Long-axis Length of Gold Nanorods through Temperature Variation
Chemistry Letters, 41, 1173-1175 DOI 10.1246/cl.2012.1173 

3. Akiyama, H. Yoshida, M.
Photochemically Reversible Liquefaction and Solidification of Single Compounds Based on a Sugar Alcohol Scaffold with Multi Azo-Arms
Advanced Materials, 24, 2353-2356, DOI 10.1002/adma.201104880

2. Yamamoto, T. Yoshida, M.
Viscoelastic and Photoresponsive Properties of Microparticle/Liquid-Crystal Composite Gels: Tunable Mechanical Strength along with Rapid-Recovery Nature and Photochemical Surface Healing using an Azobenzene Dopant
Langmuir, 28, 8463-8469, DOI 10.1021/la3001784

1. Yamamoto, T. Yoshida, M.
Photoinduced Directional Motions of Microparticles at Air-Liquid-Crystal Interfaces of Azobenzene-Doped Liquid-Crystal Films with Homeotropic or Homogeneous Alignment Structures
Applied Physics Experess, 5, 101701 DOI 10.1143/APEX.5.101701


1. Matsuzawa, Y. Kato, H. Ohyama, H. Nishide, D. Kataura, H. Yoshida, M.
Photoinduced Dispersibility Tuning of Carbon Nanotubes by a Water-Soluble Stilbene as a Dispersant
Advanced Materials, 23, 3922-, DOI 10.1002/adma.201101960