Fig. 5: Microfluidic sensing and manipulation by PEHF580-990 actuators.
From: Microfluidic manipulation by spiral hollow-fibre actuators

a Schematic of the microfluidic sensing and manipulation device. b Optical images of PEHF580-990 actuators for sensing the liquid temperature and sorting the liquid into the desired vessels. c Comparison of the temperature resolution and specific torsional stroke of PEHF580-990 with those in previous studies. The specific torsional stroke is defined as ΔT/(T·Δθ), where ΔT denotes the thermally driven torsional rotation, T denotes the twist density, and Δθ is the temperature change. The temperature resolution is the minimum temperature change used to trigger torsional actuation. d Torsional angle as a function of water temperature.