Figure: Fine network of gel inside a course network allows mechanically robust connection yet low friction.
Dr. Chiao’s lab focuses on the fabrication of micro-electro-mechanical systems for biological applications. His research involves investigating the versatile properties of liquid based gels that could be used for encapsulation of mechanical interfaces. This is important to bionics because it allows for engineering of soft and durable physical interfaces between biology and electronics.
Normal human joints have soft materials nested together with a fine network inside a coarse network that allow for solid connection and smooth movement. This project allows gels to be made with similar low friction, but mechanically robust connections. These could provide strong, but flexible connections between a bionic device and the human host.
Z. Wang et al, Mechanically enhanced nested-network hydrogels as a coating material for biomedical devices, Acta Biomaterialia 2018, 70, 98-109