Methods for making antimicrobial resins and for forming coatings comprising antimicrobial resins on substrate surfaces are disclosed. The usability of the captured image data associated with the document is determined based upon the amount of information found missing from the image of the document due to, for examples, a torn or folded corner. A plurality of multi-media data files are accessed, wherein each of the plurality of multi-media data files comprises associated metadata. The modified excitation signal is used to energize the phase windings of the magnetic bearing, thus providing a low-cost and efficient means for dynamically suspending the rotor of the rotary device. Thereafter, grooves are formed on the piezoelectric laminate by removing the first and second leads, so that the first internal electrodes and the second internal electrodes can be separated individually. The present invention also provides a method for obtaining fibrinogen from a fluid, the method comprising: a) contacting the fluid with a hydrophobic interaction chromatography resin under conditions where the fibrinogen binds to the resin; and b) removing the bound protein by means of elution.