Group Leader Molecular Assembly Group Research Institute of Advanced Electronics and Photonics National Institute of Advanced Industrial Science and Technology (AIST)  Yasuo Norikane, Ph. D

[We welcome graduate students!]
Yasuo Norikane has a position at University of Tsukuba as an Associate Professor.
This is based on the Cooperative Graduate School System, which provide students the opportunity to conduct their research at AIST and they can obtain academic degrees (MS and Ph.D.) from Univ. of Tsukuba.
We welcome students who are highly motivated to organic photochemistry, materials chemistry, and related field. The entrance exam of the Graduate School are held in August and February.
Please see the links below for more info.
[Graduate School of Science and Technology (Univ. of Tsukuba)]
[Master's/Doctoral Program in Chemistry, Graduate School of Science and Technology (Univ. of Tsukuba)]
[Master's/Doctoral Program in Materials Innovation, Graduate School of Science and Technology (Univ. of Tsukuba)]
[Cooperative Graduate School System (Univ. of Tsukuba)]
[Admissions of Graduate Schools (Univ. of Tsukuba)]
[Japanese Government Scholarship (Univ. of Tsukuba)]

[Photo-induced crystal-liquid phase transition materials are now commercially available!]
Three azobenzene compounds are available from Tokyo Chemical Industry Co, Ltd.
B4596: 4,4'-Bis(hexyloxy)-3-methylazobenzene
B4597: 4,4'-Bis(decyloxy)-3-methylazobenzene
B4598: 4,4'-Bis(dodecyloxy)-3-methylazobenzene
Properties of those compounds are reported in the following papers:
Y. Norikane et al. Org. Lett. 16, 5012-5015 (2014).[link]
Y. Norikane et al. J. Photopolym. Sci. Tech. 29, 149-157 (2016).[link]

[Introduction video of Norikane Lab] Master's and Doctoral Program in Materials Innovation, Univ. of Tsukuba

News

Aug 8, 2022
NEW The paper concerning the self-assembly control of gold nanorattles by visible-light responding azobenzene, collaboration with Dr. Saito, Researcher at AIST, and Keegan McGehee, PhD student at the University of Tsukuba, has been published in Particle and Particle Systems Characterization.
Koichiro Saito, Keegan McGehee, Yasuo Norikane
Visible-Light-Induced Reversible Self-Assembly of Gold Nanorattles using Anionic ortho-Fluoroazobenzene
Particle and Particle Systems Characterization, xx, xxx (2022).
https://doi.org/10.1002/ppsc.202200123
Aug 5, 2022
NEW The paper concerning the single-crystalline microvessels under the collaboration with the research group of Prof. Yohei Yamamoto, Prof. Hiroshi Yamagishi, and Prof. Yasuhiro Morisaki has been published in Science.
Osamu Oki, Hiroshi Yamagishi, Yasuhiro Morisaki, Ryo Inoue, Kana Ogawa, Nanami Miki, Yasuo Norikane, Hiroyasu Sato, Yohei, Yamamoto
Synchronous assembly of chiral skeletal single-crystalline microvessels
Science, 377, 673-678 (2022).
Nov. 22, 2021
Our paper concerning the photo-induced crawling motion of crystal on gold surfaces has been published in Langmuir, and the article has been selected as a Supplementary Cover.
Yasuo Norikane, Masaru Hayashino, Mio Ohnuma, Koji Abe, Yoshihiro Kikkawa, Koichiro Saito, Kengo Manabe, Koji Miyake, Miki Nakano, Naoki Takada
Photo-Induced Crawling Motion of Azobenzene Crystals on Modified Gold Surfaces
Langmuir, 37, 14177-14185 (2021).
Jan. 29, 2020
Our paper concerning the gold nanosheets and gold clay has been published in Nature Communications.
Youfeng Yue, and Yasuo Norikane
Gold Clay from Self-assembly of 2D Microscale Nanosheets
Nat. Commun., 11, Auticle number: 568 (2020).
Aug 27, 2019
The paper concerning the 2D and 3D self-assembling strucure of polyaromatic compound under the collaboration with Prof. Pance Naumov's reaserch group (New York Univ. Abu Dhabi) has been published in CHEMNANOMAT.
Gijo Raj, Yoshihiro Kikkawa, Luca Catalano, Renu Pasricha, Yasuo Norikane, and Pance Naumov
Supramolecular Organization of Model Polycyclic Aromatic Molecules: Comparison of 2D and 3D Assemblies
CHEMNANOMAT, DOI: 10.1002/cnma.201900415.
July 16, 2019
Our paper concerning the photoinduced crawling motion of crystals by a visible light has been published on Chemical Communications.
Koichiro Saito, Mio Ohnuma, and Yasuo Norikane
Negative Phototactic Behaviour of Crystals on a Glass Surface
Chem. Commun., DOI: 10.1039/c9cc03826d.
Aug. 13, 2018
Our paper concerning the photoresponsive actuater based on photoswitchable glass transition temperature of polymers has been published on Nature Communications.
Youfeng Yue, Yasuo Norikane, Reiko Azumi, and Emiko Koyama
Light-induced Mechanical Response in Crosslinked Liquid-crystalline Polymers with Photoswitchable Glass Transition Temperatures
Nat. Commun., 9, 3234 (2018).
June 21, 2016
Our paper concerning the controlling the initiation of enzymatic degradation of biodegradable polymers by using photo-induced solid-liquid phase transition of azobenzene has been accepted to RSC Advances.
Yoshihiro Kikkawa, Satoko Tanaka and Yasuo Norikane
Photo-triggered Enzymatic Degradation of Biodegradable Polymers
RSC Advances 7, 55720-55724 (2017).
June 21, 2016
Our paper concerning the alkyl chain length effect on the photoinduced crystal-liquid phase transition in simple rod-shaped azobenzenes has been accepted to Journal of Photopolymer Science and Technology.
Yasuo Norikane, Emi Uchida, Satoko Tanaka, Kyoko Fujiwara, Hideki Nagai and Haruhisa Akiyama
Photoinduced Phase Transitions in Rod-shaped Azobenzene with Different Alkyl Chain Length
J. Photopolym. Sci. Tech. 29, 149-157 (2016).
May 23, 2016
Our paper concerning photoinduced crystal motion of azobenzene crystals on water surface has been accepted to CrystEngComm.
Yasuo Norikane, Satoko Tanaka, Emi Uchida
Azobenzene Crystals Swim on Water Surface Triggered by Light
CrystEngComm DOI: 10.1039/C6CE00738D. [link]
April 1, 2016
[We welcome graduate students!]
Yasuo Norikane has been appointed as Associate Professor, University of Tsukuba.
This is based on the Cooperative Graduate School System, which provide students the opportunity to conduct their research at AIST and they can obtain academic degrees (MS and Ph.D.) from Univ. of Tsukuba.
We welcome students who are highly motivated to organic photochemistry, materials chemistry, and related field.
Please see the links below for more info.
[Cooperative Graduate School System (Univ. of Tsukuba)]
[Graduate school of Pure and Applied Sciences (Univ. of Tsukuba)]
[Japanese Government Scholarship (Univ. of Tsukuba)]
Feb. 2, 2016
Our paper concerning light-responsive helical nanostructure has been published in Chemistry A European Journal.
Mina Han, Sung June cho, Yasuo Norikane, Masaki Shimizu, Takahiro Seki
Assembly of an Achiral Chromophore into Light-Responsive Helical Nanostructures in the Absence of Chiral Components
Chem. Eur. J. DOI: 10.1002/chem.201600227. [link]
July 1, 2015
Yasuo Norikane has been promoted to Group Leader, Molecular Assembly Group.
June 18, 2015
Our paper concerning photoinduced translational motion of azobenzene crystals on glass surface has been published in Nature Communications.
Emi Uchida, Reiko Azumi, and Yasuo Norikane
Light-Induced Crawling of Crystals on a Glass Surface
Nat. Commun. 6:7310 DOI: 10.1038/ncomms8310 (2015). [link]

Discovery of the Phenomenon of Crystal Movement by Photoirradiation (AIST Press Release)
Sep. 12, 2014
Our paper concerning photoinduced phase transitions, solid/liquid patterning, and applications for photolithography processes using low-molecular-weight azobenzene compounds has been published in Organic Letters.
Yasuo Norikane, Emi Uchida, Satoko Tanaka, Kyoko Fujiwara, Emiko Koyama, Reiko Azumi, Haruhisa Akiyama, Hideyuki Kihara, and Masaru Yoshida
Photoinduced Crystal-to-Liquid Phase Transitions of Azobenzene Derivatives and Their Application in Photolithography Processes through a Solid-Liquid Patterning
Org. Lett. DOI: 10.1021/ol502223u. [link]
July 4, 2014
Our paper concerning photochromic reactions, phase transitions, and patternig in the bulk phase of a spiropyran has been published in Chemistry Letters.
Emi Uchida, Reiko Azumi, and Yasuo Norikane
Switching between Solid and Liquid Phases of Spiropyran by Photochromic Reaction
Chem. Lett. DOI: 10.1246/cl.140582. [link]
June 11, 2014
Our full paper concerning the crystal structure of macrocyclic azobenzene has been published in Journal of the American Chemical Society.
Manabu Hoshino, Emi Uchida, Yasuo Norikane, Reiko Azumi, Shunsuke Nozawa, Ayana Tomita, Tokushi Sato, Shin-ichi Adachi, and Shin-ya Koshihara
Crystal Melting by Light: X-ray Crystal Structure Analysis of an Azo Crystal Showing Photoinduced Crystal-Melt Transition
J. Am. Chem. Soc. 136, 9158-9164 (2014). [link]
Nov. 8, 2013
Our full paper concerning macrocyclic azobenzene has been published in Chemistry -A European Journal.
Emi Uchida, Kouji Sakaki, Yumiko Nakamura, Reiko Azumi, Yuki Hirai, Haruhisa Akiyama, Masaru Yoshida, and Yasuo Norikane
Control of the Orientation and Photoinduced Phase Transitions of Macrocyclic Azobenzene
Chem. Eur. J. 19, 17291-17397 (2013). [link]
contact info

Yasuo Norikane, Ph. D
Group Leader,
Molecular Assembly Group,
Research Institute for Advanced Electronics and Photonics,
National Institute of Advanced Science and Technology (AIST),
Central 5, Higashi 1-1-1, Tsukuba
Ibaraki Pref. 305-8565, Japan

TEL: +81-29-861-4887
FAX: +81-29-861-6252
E-mail: y-norikane (at) aist.go.jp