Manu Prakash : Research : Bubble Logic : Microfluidic memory Universal Logic Nonlinear bubble interactions by hydro-dynamic force fields are exploited to build universal logic gates operating at low Re number in newtonian fluids. Microfluidic memory Bistable one-bit bubble memory for storage of both information and chemicals at the same time. Bubble circuits Bubble logic devices can be cascaded to form numerous digital circuit elements like ring oscillators, counters. Bubble synchronization Non-linear fluidic ladder networks are used to synchronize two streams of bubbles, thus correcting any timing error. Bubble modulator Bubbles can be generated on demand to encode information in a train of bubbles.  Home Microfluidic one-bit memory implemented as a toggle flip-flop. The gate stores its state indefinitly (zero for the blue bubble) until a toggle signal arrives(orange bubble, left to right). This switches the state of the flip-flop from zero to one, until another toggle bubble arrives.  Image Gallery Movies © 2007-2008 Last Updated : 8 Feb. 2007