A method of forming carbon nanotube-filled composites using miniemulsion polymerization. The EAS device is placed or secured in the recess, the tail is wrapped around a piece of merchandise, and the other end of the tail is affixed to one of the bifolding bodies, and then the bifold is snapped shut permanently. These methods can be used in conjunction with existing fabrication and processing techniques with minimal or no added complexity. The housing can be formed from a first housing shell cooperating with a second housing shell to capture the circuit board. In one embodiment, this invention provides a microarray print head comprising a plurality of glass or quartz spotting capillaries disposed in a support that maintains a fixed spacing between the spotting capillaries and that permits the spotting capillaries to move in a direction parallel to the long axis of the capillaries.