Recent news articles show how engineers and inventors are helping mankind by imitating what plants, cells and animals do every day. A new kind of vaccine based on spider silk (Science Daily). Because spider silk is tough and yet biodegradable, it can be used as a delivery capsule for vaccines that might otherwise be resisted […]
A major clinical trial using embryonic stem cells was suddenly halted this week. Meanwhile, trials with adult stem cells are steamrolling ahead. Why the difference?