Light-Controlled Nitric Oxide Generation from a Novel Self-Assembled Monolayer on a Gold Surface This work was supported by MURST “cofinanziamento di programmi di ricerca di rilevante interesse nazionale” (Project: Mechanisms of Photoinduced Processes in Organized Systems). We also thank Prof. S. Giuffrida for his critical reading of the manuscript, Prof. V. Amico for his useful suggestions, and the referees for constructive comments.