The design and operation of a microfluidic system formed in a synthetic hydrogel which captures the main attributes of transpiration in plants is reported. The microfluidic 'synthetic tree' has a root system that enables the continuous extraction of liquid water from a subsaturated vapour into negative pressures in the liquid phase, stabilization and flow of liquid water at large negative pressures through the 'trunk' and continuous heat transfer with the evaporation of liquid water at negative pressures through an analagous leaf system.
- Tobias D. Wheeler
- Abraham D. Stroock