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Main Theater[East hall 1]

Feb. 1, 2023 (Wed.)

【nano tech Special Symposium】Unraveling Nanoparticle Dispersion Systems with "Process Science" toward Rational Design of Process and Products

【Organizer】nano tech executive committee
【Time】11:45-13:30 Pre-Registration required Full

 
Building a base of process science for materials.
11:45-12:00 Pre-Registration required
Venue: Main Theater[East hall 1]
Mr. Toshiki Nagano

Ministry of Education, Culture, Sports, Science and Technology (MEXT)

Program Officer (PO)

Japan Science and Technology Agency

Mr. Toshiki Nagano


Challenges in establishment of process science for nanomaterials
12:00-12:20 Pre-Registration required
Venue: Main Theater[East hall 1]
Prof. Tadafumi Ajiri

Tohoku University

Professor

Prof. Tadafumi Ajiri


Can nanoparticle dispersion systems be modeled and designed as quasi-molecular systems?
12:20-12:40 Pre-Registration required
Venue: Main Theater[East hall 1]
Dr. Takaaki Tomai

Tohoku University

Institute of Multidisciplinary Research for Advanced Materials

Associate Professor (Ph.D)

Dr. Takaaki Tomai


How well do we understand the interaction between nanoparticle surfaces and solvents? - Approach from coarse-grained molecular dynamics simulations
12:40-13:10 Pre-Registration required
Venue: Main Theater[East hall 1]
Prof. Momoji Kubo

Tohoku University

Institute for Materials Research

Professor

Prof. Momoji Kubo

【Profile】

March, 1990 Graduated from Department of Hydrocarbon Chemistry, Faculty of Engineering, Kyoto University
March, 1992 Completed Master's Degree Course, Department of Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University
July, 1992 Research Associate, Faculty of Engineering, Tohoku University
April, 2001 Associate Professor, Graduate School of Engineering, Tohoku University
January, 2008 Professor, Graduate School of Engineering, Tohoku University
March, 2013 The Chemical Society of Japan Award for Creative Work
March, 2015 Professor, Institute for Materials Research, Tohoku University
April, 2017 Director, Center for Computational Materials Science, Institute for Materials Research, Tohoku University


【Abstract】

Since nanoparticles express novel functions not found in bulk materials, they are developed for various application fields such as electronics, catalysis, and energy. However, aggregation of nanoparticles in organic solvents during mass production is a major problem that hinders their practical use. However, it is known that the dispersibility of organically modified nanoparticles cannot be explained only by the solubility of the organic modification chains and solvent, and there is a need to clarify the interaction between the nanoparticle surface and organic solvent at atomic level. Therefore, we aimed to clarify the interaction between various organic solvents and organically modified nanoparticles by utilizing coarse-grained molecular dynamics simulations and then to elucidate the dispersion and aggregation mechanisms of organically modified nanoparticles in organic solvents and to design optimal organic solvents for improving the dispersion of organically modified nanoparticles.

How well do we understand the interaction between nanoparticle surfaces and solvents? - Approach from the influence of process on structure formation of nanoparticles -
12:40-13:10 Pre-Registration required
Venue: Main Theater[East hall 1]
Prof. Takao Tsukada

Tohoku University

New Industry Creation Hatchery Center

Specially Appointed Professor

Prof. Takao Tsukada

【Profile】

Ph.D., Chemeical Engineering, Tohoku University (1984)
M.S., Chemeical Engineering, Tohoku University (1981)
B.S., Chemeical Engineering, Tohoku University (1979)

Specially Appointed Professor, New Industry Creation Hatchery Center, Tohoku University (2022-present)
Professor, Graduate School of Engineering, Tohoku University (2008-2022)
Professor, Graduate School of Engineering, Osaka Prefecture University (2005-2008)
Associate Professor, Institute for Chemical Reaction Science, Tohoku University (1991-2005)
Lecturer, Chemical Research Institute of Non-Aqueous Solution, Tohoku Univversity (1990-1991)
Research Associate, Chemical Research Institute of Non-Aqueous Solution, Tohoku University (1984-1990)


【Abstract】

Nanofluids, which are colloidal suspensions of nanoparticles, are expected to be applied to various fields. The properties of nanofluids and their applied products depend on not only nanoparticles and solvents themselves but also the structures of nanoparticles in solvents. Since the structures of nanoparticles are affected by the processes such as fluid shear and solvent evaporation as well as the affinity between nanoparticles and solvents, it is important to understand the correlation between the affinity, the processes and the structures of nanoparticles to obtain products with the desired properties. We have performed numerical simulations for the dispersion and aggregation behavior of surface-modified nanoparticles under shear flow and the structure formation of the nanoparticles during solvent evaporation, and clarified the effect of the processes on the structure formation of nanoparticles. In my talk, the above-mentioned works will be introduced.

Structure Making for Social Implementation of Nano Technology Process Science by Industry-Government-Academia Collaboration
New Revolutional technology will be created by this consortium for SDGs, Power electronics, Post 5G and Health care.
13:10-13:30 Pre-Registration required
Venue: Main Theater[East hall 1]
Dr. Hideki Hoshiro

Tohoku University

New Industry Creation Hatchery Center

Project & Visiting Professor

Dr. Hideki Hoshiro


【Abstract】

In this Precess Science Consortium the companies who are interested in SDGs,Power electronics, Post 5G, Health care etc have a clear target and make each consortium (teams with upstream,midstream,downstream). They clarify the issue, share the information, simulate and develop the new nano materials.

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