An iridium oxide nanowire protein sensor and associated fabrication method are presented. The magnet moment of the medical device can be created by one or more electromagnet coils, in which case the magnetic moment can be changed by changing the current to the coil. Unique vocabulary terms are listed wherein each vocabulary term represents only one node in the tree and comprises that node’s category label. The action analysis includes tap action hit target region analysis and swipe action direction, angle, andor length analysis.