342 citations · 619 across the 7 of their papers we have counts for
7 papers
Reversible photo-switching in a cell-sized vesicle
Tsutomu Hamada, Yuko T. Sato, Takeshi Nagasaki +1
A photosensitive amphiphilic molecule can switch the shape of an assembled vesicle as determined by microscopic observation. Photo-isomerization induces a change in membrane fluctu…
Chemo-Sensitive Running Droplet
Yutaka Sumino, Masaharu Nagayama, Hiroyuki Kitahata +4
Chemical control of the spontaneous motion of a reactive oil droplet moving on a glass substrate under an aqueous phase is reported. Experimental results show that the self-motion…
Dynamics of micrometer-scale phase separation in a polymer mixture upon laser irradiation
Hirofumi Toyama, Hiroyuki Kitahata, Kenichi Yoshikawa
Ten m -sized droplets in an aqueous-two-phase system (water/ polyethylene-glycol (PEG)/ dextran) dissapear upon irradiation with a focused YAG laser. The interface of the dextra…
Mode Selection in the Spontaneous Motion of an Alcohol Droplet
Ken Nagai, Yutaka Sumino, Hiroyuki Kitahata +1
An alcohol (pentanol) droplet exhibits spontaneous agitation on an aqueous solution, driven by a solutal Marangoni effect. We found that the droplet's mode of motion is controlled…
Slowing and stopping of chemical waves in a narrowing canal
Hiroyuki Kitahata, Ryoichi Aihara, Yoshihito Mori +1
The propagation of a chemical wave in a narrow, cone-shaped glass capillary was investigated. When a chemical wave propagates from the wider end to the narrower end, it slows, stop…
Self Running Droplet: Emergence of Regular Motion from Nonequilibrium Noise
Yutaka Sumino, Nobuyuki Magome, Tsutomu Hamada +1
Spontaneous motion of an oil droplet driven by chemical nonequilibricity is reported. It is shown that the droplet undergoes regular rhythmic motion under appropriately designed bo…