Contents

03 September 1993
Vol 261, Issue 5126

About The Cover

Computer-generated cubic unit cell (97.3 angstroms) of a silicate mesostructure; the lavender contours bound a periodic minimal surface along which silicate anions polymerize into an infinite sheet between two separate, bicontinuous surfactant volumes (green and red). Recent breakthroughs in the synthesis of mesoporous materials have permitted the exploration of liquid crystal-inorganic interface formation in surfactant-silicate mesophases. See page 1299. [Image: A. Monnier, using Insight II software (Biosym)]