Roland Piquepaille writes "Scientists at Northwestern University have designed the smallest scaffoldings in the world made of self-assembling structures built from synthetic molecules. This news release says that these nanostructures can promote neuron growth. This could lead to "the reversal of paralysis due to spinal cord injury." This research has important potential because, as says Nature, "every year in the United States alone, about 15,000 people damage their spines [and] few recover fully." The results of this research work have been published by Science (free registration needed to read the abstract). This summary contains more details and excerpts."