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先端科学技術研究科 / Graduate School of Science and Technology
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物質創成科学領域 / Division of Materials Science
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Browsing 物質創成科学領域 / Division of Materials Science by Submit Date

Browsing 物質創成科学領域 / Division of Materials Science by Submit Date

Now showing items 1-20 of 53

Direct borylation of terrylene and quaterrylene

Kano, Haruka; Uehara, Keiji; Matsuo, Kyohei; Hayashi, Hironobu; Yamada, Hiroko; Aratani, Naoki (Beilstein-Institut, 2020-04-06)

The preparation of large rylenes often needs the use of solubilizing groups along the rylene backbone, and all the substituents of the terrylenes and quaterrylenes were introduced before creating the rylene skeleton. In ...
Vinylene-Bridged Cyclic Dipyrrin and BODIPY Trimers

Xue, Songlin; Kuzuhara, Daiki; Aratani, Naoki; Yamada, Hiroko (MDPI, 2020-10-28)

Vinylene-bridged cyclic boron–difluoride complex of dipyrrin (BODIPY) trimers were successfully prepared from expanded dimethyl-vinylene bridged hexaphyrin(2.1.2.1.2.1) Me-Hex that has the structure of alternate dipyrrins ...
Spatial Analytical Surface Structure Mapping for Three-dimensional Micro-shaped Si by Micro-beam Reflection High-energy Electron Diffraction

Sohei, Nakatsuka; Taishi, Imaizumi; Tadashi, Abukawa; Azusa, N. Hattori; Hidekazu, Tanaka; Ken, Hattori (The Japan Society of Vacuum and Surface Science, 2021-03-06)

Spatially arranged surfaces on the micro-rod structure, which was three-dimensionally (3D) architected on a Si(110) substrate have been thoroughly investigated by a system with micro-beam reflection high-energy electron ...
Structure elements can be predicted using the contact Volume among protein residues

Yasumichi, Takase; Yoichi, Yamazaki; Yugo, Hayashi; Sachiko, Toma-Fukai; Hironari, Kamikubo (The Biophysical Society of Japan, 2021-03-24)

Previously, the structure elements of dihydrofolate reductase (DHFR) were determined using comprehensive Ala-insertion mutation analysis, which is assumed to be a kind of protein “building blocks.” It is hypothesized ...
Supramolecular Copolymerization of Bichromophoric Chiral and Achiral Perylenediimide Dyes

Shumpei, Yonezawa; Tsuyoshi, Kawai; Takuya, Nakashima (2021-03-26)

Propagation and amplification of chirality are considered to play an important role in the chemical evolution of biological homochirality. Stereochemical communications have been demonstrated to have a significant effect ...
In situ measurement of cell stiffness of Arabidopsis roots growing on a glass micropillar support by atomic force microscopy

Akita, Eri; Yalikun, Yaxiaer; Okano, Kazunori; Yamasaki, Yuki; Ohtani, Misato; Tanaka, Yo; Demura, Taku; Hosokawa, Yoichiroh (Japanese Society for Plant Biotechnology, 2020-10-16)

Atomic force microscopy (AFM) can measure the mechanical properties of plant tissue at the cellular level, but for in situ observations, the sample must be held in place on a rigid support and it is difficult to obtain ...
Selective induction of targeted cell death and elimination by near-infrared femtosecond laser ablation

Okano, Kazunori; Wang, Chung-Han; Hong, Zhen-Yi; Hosokawa, Yoichiroh; Liau, Ian (Elsevier, 2020-12)

The techniques for inducing the death of specific cells in tissue has attracted attention as new methodologies for studying cell function and tissue regeneration. In this study, we show that a sequential process of targeted ...
Establishment of a heart-on-a-chip microdevice based on human iPS cells for the evaluation of human heart tissue function

Abulaiti, Mosha; Yalikun, Yaxiaer; Murata, Kozue; Sato, Asako; Sami, Mustafa M.; Sasaki, Yuko; Fujiwara, Yasue; Minatoya, Kenji; Shiba, Yuji; Tanaka, Yo; Masumoto, Hidetoshi (nature, 2020-11-05)

Human iPS cell (iPSC)-derived cardiomyocytes (CMs) hold promise for drug discovery for heart diseases and cardiac toxicity tests. To utilize human iPSC-derived CMs, the establishment of three-dimensional (3D) heart tissues ...
Hydrodynamic particle focusing enhanced by femtosecond laser deep grooving at low Reynolds numbers

Zhang, Tianlong; Namoto, Misuzu; Okano, Kazunori; Akita, Eri; Teranishi, Norihiro; Tang, Tao; Anggraini, Dian; Hao, Yansheng; Tanaka, Yo; Inglis, David; Yalikun, Yaxiaer; Li, Ming; Hosokawa, Yoichiroh (Nature Research, 2021-01-18)

Microfluidic focusing of particles (both synthetic and biological), which enables precise control over the positions of particles in a tightly focused stream, is a prerequisite step for the downstream processing, such as ...
Nonmagnetic Layer Thickness Dependence of Exchange Bias and Coercive Fields in NiFe/NM/FeMn (NM = Cu, Ru) Trilayers with Long-Range Exchange Bias Effect

Yoshida, Akihiro; Konishi, Taku; Hosoito, Nobuyoshi (Physical Society of Japan, 2020-08-27)

Trilayer films consisting of ferromagnetic NiFe, nonmagnetic Cu or Ru, and antiferromagnetic FeMn layers were prepared by sputtering technique. The long-range exchange bias properties were investigated with magnetization ...
Pneumatically Actuated Thin Glass Microlens for On-Chip Multi-Magnification Observations

Aishan, Yusufu; Yalikun, Yaxiaer; Tanaka, Yo (MDPI, 2020-08-23)

This paper presents a self-contained micro-optical system that is magnification-controlled by adjusting the positions of the microlens in the device via pneumatic air pressure. Unlike conventional dynamic microlenses made ...
Area cooling enables thermal positioning and manipulation of single cellls

Shen, Yigang; Yalikun, Yaxiaer; Aishan, Yusufu; Tanaka, Nobuyuki; Sato, Asako; Tanaka, Yo (Royal Society of Chemistry, 2020-10-01)

Contactless particle manipulation based on a thermal field has shown great potential for biological, medical, and materials science applications. However, thermal diffusion from a high-temperature area causes thermal damage ...
Fabrication of Hollow Structures in Photodegradable Hydrogels Using a Multi-Photon Excitation Process for Blood Vessel Tissue Engineering

Watanabe, Uran; Sugiura, Shinji; Kakehata, Masayuki; Yanagawa, Fumiki; Takagi, Toshiyuki; Sumaru, Kimio; Satoh, Taku; Tamura, Masato; Hosokawa, Yoichiroh; Torizuka, Kenji; Kanamori, Toshiyuki (MDPI, 2020-07-13)

Engineered blood vessels generally recapitulate vascular function in vitro and can be utilized in drug discovery as a novel microphysiological system. Recently, various methods to fabricate vascular models in hydrogels ...
Creation and Evaluation of Atomically Ordered Side- and Facet-Surface Structures of Three-Dimensional Silicon Nano-Architectures

Hattori, Azusa N.; Hattori, Ken (IntechOpen, 2020-06-23)

The realization of three-dimensional (3D)-architected nanostructures, that is, the transformation from novel two-dimensional (2D) film-based devices to 3D complex nanodevices, is of crucial importance with the progress of ...
Monitoring Neural Activities in the VTA in Response to Nicotine Intake Using a Novel Implantable Microimaging Device

Sunaga, Yoshinori; Ohta, Yasumi; Akay, Yasemin M; Ohta, Jun; Akay, Metin (IEEE, 2020-04-06)

Measurements of the deep brain area of rodents has been one of the most important methods to study deep brain activities, in part due to limited access of this region. In order to address this problem, we have designed and ...
Local Structure of the Impurity Site in Nd:LaF3 by X‐Ray Fluorescence Holography

Stellhorn, Jens Rüdiger; Hosokawa, Shinya; Happo, Naohisa; Hayashi, Kouichi; Matsushita, Tomohiro; Kawaguchi, Noriaki; Yanagida, Takayuki (Wiley, 2020-07-21)

The local structure around the dopant atom in Nd(8 mol%):LaF3 single‐crystal scintillator is analyzed by X‐ray fluorescence holography experiments in combination with a sparse modeling algorithm. The average local environment ...
Synthesis and Morphological Control of Organic Semiconducting Materials Using the Precursor Approach

Yamada, Hiroko; Hayashi, Hironobu; Aratani, Naoki (Chemical Society of Japan, 2020-10-02)

Pristine π-extended aromatic compounds are attractive as organic functional materials including organic semiconductors, but are difficult to synthesize in pure form because of their low solubility in common organic solvents. ...
Photoinjection of fluorescent nanoparticles into intact plant cells using femtosecond laser amplifier

Rukmana, Taufiq Indra; Moran, Gabriela; Méallet-Renault, Rachel; Clavier, Gilles; Kunieda, Tadashi; Ohtani, Misato; Demura, Taku; Yasukuni, Ryohei; Hosokawa, Yoichiroh (2020-06-15)

The introduction of nanoparticles to intact plant cells is promising as a transporting technique of a wide range of functional molecules. Among various molecular delivery methods, femtosecond laser photoinjection possesses ...
Dynamic Ring Exploration with (H,S) View

Gotoh, Tsuyoshi; Sudo, Yuichi; Ooshita, Fukuhito; Masuzawa, Toshimitsu (MDPI, 2020-06-12)

The researches about a mobile entity (called agent) on dynamic networks have attracted a lot of attention in recent years. Exploration which requires an agent to visit all the nodes in the network is one of the most ...
Impact of Enantiomeric Ligand Composition on the Photophysical Properties of Chiral Ag29 Nanoclusters

Yoshida, Hiroto; Kumar, Jatish; Ehara, Masahiro; Okajima, Yasuo; Asanoma, Fumio; Kawai, Tsuyoshi; Nakashima, Takuya (The Chemical Society of Japan, 2020-04-14)

Chiral surface ligands have often been employed to impart optical activity to metal nanoclusters, metal nanoparticles and semiconductor nanocrystals. They are considered to form a chiral structure to a certain degree whereas ...

Now showing items 1-20 of 53

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