, McDonald, J. C., Stroock, A. D., Christian, .1. F., Karger, A. M. and Whitesides, G. M., Anal. Chem., 2001, 73, 4491.4498. 754. "Pressure-driven Laminar Flow in Tangential Microchannels: An Elastomeric Microfluidic Switch", Ismagilov, R. F., Rosmarin, D., Kenis, P. J. A., Chiu, D. T., Zhang, W., Stone, H.