Lysostaphin is a bacteriocin secreted by S. A downhole sampling tool is provided with a probe having an internal wall capable of selectively diverting virgin fluids into one or more virgin flow channels for sampling, while diverting contaminated fluids into one or more contaminated flow channels to be discarded. The coupling assembly includes a first linkage coupled to the first microactuator and a second linkage coupled to the second microactuator.