Betterhumans looks at a novel new technology for tissue engineering, a branch of regenerative medicine dedicated to growing replacements for damaged or missing tissue in the body. The big problem of the past few years has been how to grow tissue in the right shape. Recently, researchers working on biodegradable scaffolds and engineering blood vessels have made great headway in solving this problem. It looks like this new microheater technology will help things along even more. Some observers are predicting that medical science will be able to grow new organs to order long before the end of the decade.