Interfacial instability of liquid interphase improves molecular communication density

Synthetic molecular communication is an innovative communication method that allows information to be transferred by means of chemical messengers instead of electromagnetic waves. In this work, we exploit a peculiar chemical-physical phenomenon due to the development of interfacial instability between two miscible liquids to confine chemical messengers and modulate the associated signal. The chemical messengers we prepare for the purpose are fluorescent nanoparticles known as carbon quantum dots. First theoretically and then experimentally, we demonstrate that by exploiting the chemical messengers' confinement a significant increase in message transmission speed can be achieved with respect to the traditional signal modulation methods already known in the molecular communication community