Satoshi Nakata, Kaori Takemura and Yuko Hayashima
Department of Chemistry, Nara University of Education, Takabatake-cho, Nara 630-8528, Japan
(Received October 26, 1998; Accepted January 14, 1999)
Keywords: Spontaneous Oscillation, Oil-Water Liquid Membrane, Nonlinear, Sensor
Abstract. The spontaneous motion of an oil droplet in an aqueous phase with a cationic surfactant was investigated. The spatio-temporal motion changed depending on chemical stimuli (acid, sucrose, and alcohol) in the aqueous phase. The spatio-temporal responses to the chemical stimuli were discussed in relation to the heterogeneity of the interfacial tension at the oil-water interface, and Young's equation.