Fig. 3From: In vitro inactivation of Mycobacterium avium subsp. paratuberculosis (MAP) by use of copper ionsLaboratory apparatus used for treatment of bacterial cell suspensions with copper ions, consisting of a glass receptacle within which copper plates of high purity were immersed in PBS. The copper plates were stimulated with a low voltage (24 V) electric current to generate copper ions, and suspensions were mixed by means of a magnetic stirrer during treatmentBack to article page