39 citations · 119 across the 6 of their papers we have counts for
6 papers
Formation of a Single Bioconvection Spot in Euglena Suspension Induced by Negative Phototaxis
Hiroshi Yamashita, Takayuki Yamaguchi, Nobuhiko J. Suematsu +2
Microorganisms are known to alter their motility in response to external stimuli. A typical example is the responseknown as taxis, which includes behaviors such as moving toward a…
Rotational motion of a camphor disk in a circular region
Yuki Koyano, Nobuhiko J. Suematsu, Hiroyuki Kitahata
In a two-dimensional axisymmetric system, a symmetric self-propelled particle exhibits rotational or oscillatory motion from the consideration of the system symmetry. In the presen…
How can one measure group cohesion? From individual organisms to their interaction
Z. Di, M. Gho, X. Lu +4
Measuring atomic and molecular interactions was one of the main objectives of physics during the past century. It was an essential step not only in itself but because most macrosco…
Swarming of Self-Propelled Camphor Boats
Eric Heisler, Nobuhiko J. Suematsu, Akinori Awazu +1
When an ensemble of self-propelled camphor boats move in a one-dimensional channel, they exhibit a variety of collective behaviors. Under certain conditions, the boats tend to clus…
Collective Motion and Phase Transitions of Symmetric Camphor Boats
Eric Heisler, Nobuhiko J. Suematsu, Akinori Awazu +1
The motion of several self-propelled boats in a narrow channel displays spontaneous pattern formation and kinetic phase transitions. In contrast with previous studies on self-prope…
Localized bioconvection of Euglena caused by phototaxis in the lateral direction
N. J. Suematsu, A. Awazu, S. Izumi +2
Euglena, a swimming micro-organism, exhibited a characteristic bioconvection that was localized at the center of a sealed chamber under bright illumination to induce negative photo…