SENSORICA lab in Montreal.
Applications: biology, micro 3D printer, microelectronics, etc...
The actuator alone is estimated at only 2$/piece It is a linear micromanipulator that gives you sub-micron precision. It allows you to make small displacement in space. We estimated the cost of electronics to drive it at less than 50$. These things go on the market for thousands of dollars.
Contact SENSORICA is you want to buy this prototype. See the document below if you want to make it yourself.