Bifurcation of self-motion depending on the reaction order.
As a simple example of an autonomous motor, the characteristic features of self-motion coupled with the acid-base reaction were numerically and experimentally investigated at the air/aqueous interface. Oscillatory and uniform motion were categorized as a function of the reaction order by numerical computations using a mathematical model that incorporates both the distribution of the surface active layer developed from a material particle as the driving force and the kinetics of the acid-base reaction. The nature of the self-motion was experimentally observed for a boat adhered to a camphor derivative with a mono- or di-carboxylic acid on a phosphate aqueous phase as the base.
Nagayama
Masaharu
M
Institute of Science and Engineering, Kanazawa University, Kakuma-machi, Kanazawa, 920-1192, Japan.
Yadome
Masaaki
M
Murakami
Mai
M
Kato
Noriko
N
Kirisaka
Junko
J
Nakata
Satoshi
S
D002164:Camphor / Q000737:chemistry; D002264:Carboxylic Acids / Q000737:chemistry; D006863:Hydrogen-Ion Concentration; D007700:Kinetics; D008956:Models, Chemical; D009038:Motion
D002264:Carboxylic Acids; D002164:Camphor