In this paper we propose an experimental model able to catch the essential features of the propagation of chemical information in networks of micro-oscillators. In particular, we investigate the dynamics of the signal transmission/reception between water compartments containing an oscillating Belousov-Zhabotinsky (BZ) reaction, surrounded by an organic medium and further embedded in a polymer aqueous solution. By means of a microfluidic device we generated emulsions (droplets) stabilized by the presence of phospholipid monolayers at the interface. The oscillating dynamics of two neighbor droplets was studied by means of Space-Time plots and phase analysis, which showed that chemical communication led the system to an in-phase oscillating regime, suggesting an activatory type of coupling. In order to support this hypothesis, we performed numerical simulations of a simple model of two spatially homogeneous droplets coupled through the autocatalytic species HBrO2 (a BZ intermediate) and we found that in-phase oscillations represent the final stable attractor of the system.
|Titolo:||Activatory coupling among oscillating droplets produced in microfluidic based devices|
|Citazione:||Rossi, F., Zenati, A., Ristori, S., Noel, J., Cabuil, V., Kanoufi, F., et al. (2015). Activatory coupling among oscillating droplets produced in microfluidic based devices. INTERNATIONAL JOURNAL OF UNCONVENTIONAL COMPUTING, 11(1 (special issue)), 23-36.|
|Appare nelle tipologie:||1.1 Articolo in rivista|
File in questo prodotto: