Bong Sup Shim1
Inha University1
Emulating the sophistication and functionality inherent in natural systems, we have designed multifunctional nanocomposites from naturally derived materials such as conductive melanin-like polydopamine (PDA) and crystalline nanocellulose. Nature employs a bottom-up assembly of nanomaterials to create multiphasic structures with hierarchical organization, providing inspiration for our work.<br/>PDA, despite its historical limitation due to low electrical conductivity and limited material functionalities, has been restructured in our laboratory to possess tunable electrochemical conductivities, optical reflectivity, and casting shape stability, while maintaining inherent biocompatibility. This presentation will highlight these innovative modifications, focusing on the unique functional features of PDA in the realm of biosensors and bionic interfaces.<br/>Additionally, our research has expanded to include crystalline nanocellulose, another naturally derived material with promising potential in the creation of multifunctional nanocomposites. Its exceptional strength, biocompatibility, and eco-friendly nature make it a promising candidate for applications alongside conductive melanin.<br/>We will also share insights on our newly developed process for creating electrically conductive PDA, setting the stage for its role in emerging bioelectronic applications such as biotic-abiotic interfaces, edible sensors and actuators, and sustainable electronics. This presentation ultimately bridges the gap between nature-inspired designs and cutting-edge material sciences, pointing to an exciting future in multifunctional biomimetic nanocomposites.