The present invention encompasses formulations and methods for producing solid dispersions comprising mesoporous materials with poorly aqueous soluble active ingredients. Each of the bonding pads includes a seed layer adhered to the trailing edge and electrically connected with the slider substrate, a soldering layer formed on the seed layer and adapted for connecting with a suspension, and at least one solder nonwettable layer adhered to the trailing edge and connected with at least one side of the seed layer. Although the methods and devices are designed to target Torsades de Pointes, wider application to other arrhythmia onset conditions is contemplated as well. The portable terminal can be closed, wherein the housing overlies the base, or open, wherein base and housing flank the display. The differential drive mechanism includes a first rotating member receiving input based on the speed of the first conveyor belt, a second rotating member receiving input based on the speed of the second conveyor belt, and a differential gear arrangement operationally connected to the first and second rotating members.