Oh this is very cool. Glad to see Bozhi's work getting some attention. A friend of mine is co-mentored by Bozhi and my graduate advisor, and was working on some very neat experiments using this technology to trigger specific responses in T-cells. Basically, the gold nanowires can be used to trigger a membrane voltage differential, and theoretically trigger a calcium flux and then a downstream immune response without an antigen. I know they had successes with nerve cells, and I'm hopeful the T-cell results will show similar success.

Edit: Properly reading the article, it looks like this is either slightly older work, or a different experiment from the one I'm familiar with, which did show success in nerve cells last time I saw the talk on it (and used gold, or gold-silicon, my memory is fuzzy now, nanowires).