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Science 12 October 2001:
Vol. 294. no. 5541, p. 261
DOI: 10.1126/science.294.5541.261a
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This Week in Science

Nanoscale materials can show interesting properties, but not all of them show the strength and stability of carbon nanotubes. For example, small metal structures can be quickly destroyed by oxidation, but clever tricks in chemistry and templating methods can improve their stability. Building on recent synthesis work in which calix[4]hydroquinone nanotubes were fabricated, Hong et al. (p. 348; see the cover) have trapped silver ions within these tubes to form 0.4-nanometer-wide nanowires. These tube-supported wires show long-term stability in air and aqueous environments. Produced in three-dimensional arrays of support tubes, these wires may have potential as model systems for studying confinement phenomenon or as connectors in nanodevices.




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Science. ISSN 0036-8075 (print), 1095-9203 (online)