Due to the high chemical and micro-biological systems integration, and require an external energy, so is difficult for a living body. The biological force micropump is self-generated using force to drive biological fluids, such as automatic contraction of myocardial cells.
Driving principle: the use of automatic contraction of myocardial cells, the PDMS membrane on a spherical cavity deformation occurs, so that the liquid flow-driven cavity.
A micro-spherical heart-like pump advantages:
There is no external energy or stimulation, using the contraction of myocardial cells as a driving force;
The apparatus is simple and automated;
Can last five days, and the flow rate steady at 0.01-0.1 μL / min, a sudden change in the culture medium, the pump flow rate would not be large fluctuations;