Biologically inspired micro- and nanoengineering systems for functional and complex tissues.

Biologically inspired approaches employing micro- and nanoengineering techniques have been influential in the progress of cell and tissue engineering. Here, we describe the current micro- and nanofabrication technologies that have contributed to major advances in engineering complex tissues. We also present opinions on the principal challenges and future prospects in biologically inspired micro- and nanoengineering systems for understanding and regeneration of functional and complex tissues.