Kyushu University Academic Staff Educational and Research Activities Database
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Yoko Tomo Last modified date:2022.12.16

Graduate School

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 Reseacher Profiling Tool Kyushu University Pure
Academic Degree
Country of degree conferring institution (Overseas)
Field of Specialization
Thermophysical Engineering, Nanotechnology
Total Priod of education and research career in the foreign country
Research Interests
  • Thermal properties of biopolymer
    keyword : Biopolymer,Heat transfer,Thermal conductivity measurement
  • Interfacial phenomena of Water at the nanoscale
    keyword : Nanofluidics、Liquid-phase electron microscopy、Graphene liquid cell
Academic Activities
1. Yoko Tomo, Sarthak Nag, Takamatsu Hiroshi, Observation of Interfacial Instability of an Ultrathin Water Film, Physical Review Letters, 10.1103/PhysRevLett.128.144502, 128, 14, 2022.04, We observed the instability of a few-nanometer-thick water film encapsulated inside a graphene nanoscroll using transmission electron microscopy. The film, that was left after recession of a meniscus, formed ripples along the length of the nanoscroll with a distance only 20%–44% of that predicted by the classical Plateau-Rayleigh instability theory. The results were explained by a theoretical analysis that incorporates the effect of the van der Waals interactions between the water film and the graphene layers. We derived important insights into the behavior of liquid under nanoscale confinement and in nanofluidic systems..
Works, Software and Database
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Membership in Academic Society
  • Heat Transfer Society of Japan
  • Japan Society of Applied Physics
  • Japan Society of Thermophysical Properties
  • Japan Society of Mechanical Engineers