By analyzing the P. pacificus metabolome, R. J. Sommer, F. C. Schroeder et al. have identified complex small molecules built from primary metabolites that can also affect the development of the worms, as reported in their Communication on page 12438 ff.
In their Communication on page 12473 ff., L. Venkataraman, C. Nuckolls, M. L. Steigerwald et al. report a method for the preparation of discrete quantum dots on the molecular scale that connect to nanoscale electrodes.
In their Communication on page 12477 ff., D. Margulies et al. describe how a series of nonspecific, fluorescent receptors on a single molecule mimics the function of optical cross-reactive sensor arrays.