Strain-actuated microfluidic pump sensor

A skin-strain-actuated microfluidic pump (SAMP), comprising:

• (a) an actuator array of channels, wherein the channels are positioned more or less parallel to each other and fluidically connected capable of generating a reversible fluidic displacement caused by an in-plane strain;
• (b) two asymmetric pumping channels fluidically connected to each other at a connection point, wherein the connection point is fluidically connected by a single channel to the actuator array of channels, and wherein cross-sections of each of the two asymmetric pumping channels are asymmetric from each other;
• and
• (c) two liquid displacement quantification channels, wherein one of the two liquid displacement quantification channels is fluidically connected to one of the two asymmetric pumping channels, and the other of the liquid displacement quantification channels is fluidically connected to the other of the two asymmetric pumping channels,
• wherein a difference in deformation characteristics of each of the two asymmetric pumping channels caused by the asymmetry of the cross-sections results in an asymmetric flow in the two asymmetric pumping channels.