Maze solving using fatty acid chemistry

Kohta Suzuno, Daishin Ueyama, Michal Branicki, Rita Tóth, Artur Braun, I. Lagzi

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

This study demonstrates that the Marangoni flow in a channel network can solve maze problems such as exploring and visualizing the shortest path and finding all possible solutions in a parallel fashion. The Marangoni flow is generated by the pH gradient in a maze filled with an alkaline solution of a fatty acid by introducing a hydrogel block soaked with an acid at the exit. The pH gradient changes the protonation rate of fatty acid molecules, which translates into the surface tension gradient at the liquid-air interface through the maze. Fluid flow maintained by the surface tension gradient (Marangoni flow) can drag water-soluble dye particles toward low pH (exit) at the liquid-air interface. Dye particles placed at the entrance of the maze dissolve during this motion, thus exhibiting and finding the shortest path and all possible paths in a maze.

Original languageEnglish
Pages (from-to)9251-9255
Number of pages5
JournalLangmuir
Volume30
Issue number31
DOIs
Publication statusPublished - Aug 12 2014

Fingerprint

fatty acids
Fatty acids
Surface tension
Coloring Agents
Fatty Acids
Dyes
chemistry
gradients
liquid air
Hydrogel
Protonation
Liquids
Air
Hydrogels
Drag
Flow of fluids
interfacial tension
dyes
Molecules
Acids

ASJC Scopus subject areas

  • Electrochemistry
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Materials Science(all)
  • Spectroscopy

Cite this

Suzuno, K., Ueyama, D., Branicki, M., Tóth, R., Braun, A., & Lagzi, I. (2014). Maze solving using fatty acid chemistry. Langmuir, 30(31), 9251-9255. https://doi.org/10.1021/la5018467

Maze solving using fatty acid chemistry. / Suzuno, Kohta; Ueyama, Daishin; Branicki, Michal; Tóth, Rita; Braun, Artur; Lagzi, I.

In: Langmuir, Vol. 30, No. 31, 12.08.2014, p. 9251-9255.

Research output: Contribution to journalArticle

Suzuno, K, Ueyama, D, Branicki, M, Tóth, R, Braun, A & Lagzi, I 2014, 'Maze solving using fatty acid chemistry', Langmuir, vol. 30, no. 31, pp. 9251-9255. https://doi.org/10.1021/la5018467
Suzuno K, Ueyama D, Branicki M, Tóth R, Braun A, Lagzi I. Maze solving using fatty acid chemistry. Langmuir. 2014 Aug 12;30(31):9251-9255. https://doi.org/10.1021/la5018467
Suzuno, Kohta ; Ueyama, Daishin ; Branicki, Michal ; Tóth, Rita ; Braun, Artur ; Lagzi, I. / Maze solving using fatty acid chemistry. In: Langmuir. 2014 ; Vol. 30, No. 31. pp. 9251-9255.
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