A razor blade unit having a frame and blades movably mounted in the frame, each blade being elastically biased toward a rest position where the upper face of each blade bears against upper stop portions of the frame, the upper face of each blade being parallel to the corresponding upper stop portions. The method comprises measuring an injector signal from an engine’s Engine Control Unit for a primary injector. The grapping and releasing of the patterning device is achieved by the rotation of the gripper unit about a pivot substantially parallel with the center axis of the rolling member. The free standing high thermal conductivity material has a melting temperature greater than about 100\xb0 C. The second set of nonvolatile memory devices are disposed on at least one second memory module, which is coupled to the at least one first memory module in a daisy-chained configuration. Also provided are mediators for laccase reactions.