Adding more chemical interactions to DNA nanotechnology

Modifying DNA strands with lipid-like molecules opens more possibilities for designing DNA structures for drug delivery and other purposes.

Biology is capable of evolving functional mechanical gears

Nymphs of certain jumping insects have evolved 400-micrometer mechanical gear strips to precisely synchronize legs when jumping.

TEDx talk: &#34Transforming the Material Basis of Civilization&#34

Eric Drexler’s TEDx talk entitled “A Future of Radical Abundance: Transforming the Material Basis of Civilization” is available for viewing on Youtube as well as on Drexler’s blog site. As described by the Oxford Martin School, where Drexler is a scholar with the Programme on the Impacts of Future Technology: Dr. Eric Drexler’s talk from… Continue reading TEDx talk: &#34Transforming the Material Basis of Civilization&#34

Carbyne: the strongest, stiffest carbon chain

Carbyne – a straight line of carbon atoms linked by double bonds or by alternating single and triple bonds — is the next stiff, carbon-based structure with unusual and desirable properties. It has been observed under limited natural and experimental conditions, is expected to be difficult to synthesize and store, and now has been theoretically… Continue reading Carbyne: the strongest, stiffest carbon chain

Nanotubes aren&#39t stiff if they aren&#39t straight

Materials scientists have pursued the question of why vertically aligned carbon nanotube forests show much lower modulus values than expected. Now researchers from Georgia Tech have found that the nanotubes they fabricate contain kinks that dramatically diminish modulus value. In other words, the nanotubes are not straight; therefore, they are not stiff. The government-funded research… Continue reading Nanotubes aren&#39t stiff if they aren&#39t straight

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