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Kubo Lab
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A lab that examines, through observation and computation, what happens inside materials-manufacturing equipment, starting from the micro scale.
AboutAbout the lab
Seeing inside equipment, from micro to macro.
The Kubo Lab studies the phenomena that occur during materials manufacturing processes and the technologies to control them.
Using materials made in the laboratory in society requires industrial-scale manufacturing, but enlarging the equipment can cause phenomena different from those seen in the lab.
High temperatures and highly reactive substances make observation and measurement difficult, so the lab also uses computer simulation.
Through optical observation and measurement together with numerical simulation, the lab aims to understand transport phenomena inside equipment and apply that understanding to the design and optimization of manufacturing processes.
Key terms
- Nanofluid
- A liquid in which particles on the scale of nanometers are dispersed in a solution
- Molecular dynamics simulation
- A method of studying the properties of a substance by calculating the motion of each individual molecule on a computer
- Cavitation
- Tiny bubbles that form in a liquid; when they collapse, the conditions at that spot reach high temperature and high pressure
NewsLab news
A master's student won an Encouragement Award at the 28th Advanced Research Presentation Meeting of the Tohoku Branch of the Society of Chemical Engineers, Japan
A paper was published in The Journal of Physical Chemistry C
A paper was published in Langmuir
A paper was published in The Journal of Supercritical Fluids
A master's student won an Outstanding Presentation Award in a special session at the 38th Autumn Symposium of the Ceramic Society of Japan
ResearchResearch themes
The lab studies materials manufacturing processes using observation and measurement with various optical methods, as well as numerical simulation on computers. It aims to understand transport phenomena inside equipment from the micro to the macro scale, and to design and optimize processes that control the structure and function of products.
*Illustrative imageNanofluids
Nanofluids, in which nanoparticles are dispersed in a solution, are expected to be used in applications such as nanoinks for printed electronics. Focusing on surface-modified nanoparticles, the lab clarifies their dispersion and aggregation states in solution and proposes design guidelines for nanofluids. It also works to elucidate how nanoparticles form structures as a coating dries.
*Illustrative imageNanocomposite Materials
The performance of nanocomposite materials, which combine the properties of polymers and nanoparticles, also depends on how the nanoparticles are arranged within the material. Focusing on the manufacturing process of thin films made by coating and drying, the lab elucidates how structures form and clarifies the links between process, structure, and function, with the aim of controlling thin-film functions.
*Illustrative imageInvestigating Affinity with Molecular Dynamics
It is difficult to accurately grasp, down to the nanoscale, the affinity between nanoparticles and the solvents or polymers that disperse them using experiments alone. Using molecular dynamics simulation, the lab evaluates the affinity between substances numerically and aims to clarify its relationship to molecular structure at the nanoscale.
*Illustrative imageChemical Reactions Using Ultrasound
When ultrasound is applied to a liquid, tiny bubbles called cavitation form and collapse, creating conditions of high temperature, high pressure, and high shear only at that spot. Taking advantage of this special environment, the lab controls chemical reactions and develops technologies to produce polymers with uniform molecular weight and highly dispersible metal nanoparticles.
MembersFaculty
The members of the Kubo Lab are faculty, research fellows, administrative and technical assistants, and doctoral, master's, and undergraduate students.As of 2026
- ProfessorMasaki Kubo
- Assistant ProfessorTakamasa Saito
VoicesStudent voices
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Report an errorAbout the images
The top and research theme images are illustrative and were not taken at the lab. They are cropped from Wikimedia Commons images. Cropped CC BY-SA images are provided under the same CC BY-SA license as the original (version shown on each line).
- Top image: “Ferrofluid in magnetic field” Steve Jurvetson / CC BY 2.0 (cropped)
- Nanofluids: “ColloidalGold aq” AlphaJuliettPapa (talk) / CC BY 3.0 (cropped)
- Nanocomposite Materials: “Photoresist spin coating” Sei / CC BY-SA 4.0 (cropped)
- Investigating Affinity with Molecular Dynamics: “Visual Molecular Dynamics visualization” Toughpkh / Public domain (cropped)
- Chemical Reactions Using Ultrasound: “Cavitating-prop” U.S. Navy / Public domain (cropped)
- Related lab (Tomai Lab): “Critical carbon dioxide-3” Bernhard Kuemel、Regi51 / CC BY-SA 2.0 at (cropped)
- Related lab (Takizawa Lab): “Radiance” PhVKK Кирюханцев-Корнеев Филипп Владимирович / Научно-учебный центр СВС / ДНК Наука НИТУ «МИСиС» http://science.misis.ru/ / CC BY-SA 4.0 (cropped)
- Related lab (Nishibori Lab): “ESRF img 0853” Rama / CC BY-SA 2.0 fr (cropped)
- Related lab (Asai Lab): “FZU scintillators 1” René Volfík / CC BY-SA 4.0 (cropped)
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