Reciprocating motion of a self-propelled object on a molecular layer

Autor: Miho Hoshikawa, Taisuke Sato, Tatsuya Miyaji, Shunsuke Izumi, Yumihiko S. Ikura, Satoshi Nakata
Rok vydání: 2012
Předmět:
Zdroj: Chemphyschem : a European journal of chemical physics and physical chemistry. 13(18)
ISSN: 1439-7641
Popis: The mode change of a simple autonomous motor depending on the nature of a monolayer on water is investigated. A camphor disk is floated on a molecular layer of N-stearoyl-p-nitroaniline (C(18)ANA), which gives a surface-pressure (π)-area per molecule (A) isotherm with a local maximum and a local minimum. The nature of the camphor motion changes depending on A, and in particular, reciprocating motion is observed at a lower A while cutting out its own trajectory of motion. The characteristic motion of a camphor disk depending on A is discussed in relation to the π-A isotherm of C(18)ANA and the influence of the molecular interaction between molecules on the driving force of motion.
Databáze: OpenAIRE