In Situ Assembly and Screening of Enzyme Inhibitors with Surface‐Tension Microarrays

Hundreds of reactions were conducted in parallel in droplets maintained on a glass slide through differential surface tension in a new approach to submicroliter-scale synthesis. This “surface-tension microarray” was applied to the in situ assembly of thousands of derivatives of phenylboronic acid and their profiling against the NS3/4A protease of the hepatitis C virus. Several potent inhibitors of the enzyme were identified.