Phys.org  April 25, 2025 The brain’s computing principles and information carriers both differ fundamentally from those of conventional computers. Building on this distinction, an international team of researchers (the Netherlands, South Korea) presented an easy-to-fabricate tapered microchannels that embedded a conducting network of fluidic nanochannels between a colloidal structure. Due to transient salt concentration polarization, their devices were volatile memristors that were stable. The voltage-driven net salt flux and accumulation, that underpin the concentration polarization combined into a diffusion like quadratic dependence of the memory retention time on the channel length, allowing channel design for a specific timescale. They implemented […]