f Arrays of Channel Waveguides by Three-Dimensional Self-Assembly Using Patterned Organic Monolayers as Templates", Kim, E., Whitesides, G. M., Lee, L. IC, Smith, S. P. and Prentiss, M., Adv. Mat., 1996, 8, 139.142. 478. "Using Two-Stage Chemical Amplification to Determine the Density of Defects in S