Figure 1 (IMAGE)

Institute for Basic Science

Figure 1

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(Top) Sound-controlled spatiotemporal patterns. Schematic representation of experimental setup used for sound-controlled spatiotemporal pattern generation. For pattern generation experiments, O2-sensitive methyl viologen (MV2+/MV+* ) redox couple (left) or CO2-sensitive pH indicator bromothymol blue (BTB) is used. (Middle) Patterns generated in different conditions. Patterns generated in Petri dishes on application of 40 Hz (left) and 80 Hz (middle) sound. A pattern generated with a square porcelain dish at 40 Hz (right). (Bottom) Sound-controlled pH-specific domains and spatiotemporal patterns. Time-dependent changes during pattern generation with a pH indicator (BTB) placed in a CO2-exposed Petri dish in the presence of 40 Hz sound. Coexistence of pH-specific spatiotemporal domains in a BTB pattern (middle).

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