Send to

Choose Destination
See comment in PubMed Commons below
Science. 1998 Dec 18;282(5397):2244-6.

Hierarchically ordered oxides

Author information

P. Yang, D. Zhao, G. D. Stucky, Department of Chemistry, University of California, Santa Barbara, CA 93106, USA. T. Deng and G. M. Whitesides, Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA 02138, USA. P. Feng,


Porous silica, niobia, and titania with three-dimensional structures patterned over multiple length scales were prepared by combining micromolding, polystyrene sphere templating, and cooperative assembly of inorganic sol-gel species with amphiphilic triblock copolymers. The resulting materials show hierarchical ordering over several discrete and tunable length scales ranging from 10 nanometers to several micrometers. The respective ordered structures can be independently modified by choosing different mold patterns, latex spheres, and block copolymers. The examples presented demonstrate the compositional and structural diversities that are possible with this simple approach.

Free full text
PubMed Commons home

PubMed Commons


    Supplemental Content

    Full text links

    Icon for HighWire
    Loading ...
    Support Center