In the present invention a device for sensing and/or actuation purposes is presented in which microstructures (20) comprising shafts (2) with different functionality and dimensions can be inserted in a modular way. That way out-of-plane connectivity, mechanical clamping between the microstructures (20) and a substrate (1) of the device, and electrical connection between electrodes (5) on the microstructures (20) and the substrate (1) can be realized. Also connections to external circuitry can be realised. Also microfluidic channels (10) in the microstructures (20) can be connected to external equipment. Also a method to fabricate and assemble the device is provided.
