Contents: (Small 25/2016)

Photonic CrystalsThe production of structural colors based on graphene oxide (GO) pseudo-onedimensional photonic crystals (p1D-PhCs) in the visible spectrum is reported on page 3433 by W. Qi and co-workers.The structural colors could be tuned by simply changing either the volume or concentration of the aqueous GO dispersion.Moreover, GO p1D-PhCs exhibit visible and rapid responsiveness to humidity. Controlled Drug ReleaseOn page 3344, X.-Z.Zhang and co-workers present how versatile bioactive peptides could be constructed to possess multiple capabilities.Mesoporous silica nanoparticles modifi ed with peptides could realize many types of functionalities, including sitespecifi c targeting, fl uorescence imaging, and intracellular diagnosis, especially the controlled release of a drug or gene for tumor treatment. Lithium BatteriesOn page 3381, S. Sato, S. Orimo, H. Isobe, and co-workers present the fi rst macrocyclic material to be utilized in negative electrodes of all-solid-state, rechargeable lithium batteries.Assembled to align the molecular openings, the macrocycle paves paths for lithium to migrate to the π-stack intercalation sites for the storage.The macrocyclic nanochannel of a nanometer-scale diameter further provides extra spaces for the lithium storage to surpass conventional graphitic electrodes in the capacity.