When nanocellulose meets liquid metal: a review of the synergistic frontier for flexible electronics

What happens when nanocellulose meets liquid metal? Nanocellulose (NC), characterized by its high surface area, unique self-assembly behavior, and diverse chemical modification possibilities, provides a versatile platform for innovative and eco-friendly flexible electronics. This versatility is further amplified by the introduction of liquid metals (LMs), whose fascinating metallic and liquid natures create synergistic opportunities for advanced nanocellulose-based devices. This review aims to comprehensively examine the synergistic potential of nanocellulose-liquid metal interfaces in electronics, detailing recent advancements, emphasizing the importance of interfacial engineering for performance enhancement, and outlining future research directions and applications.