Pickering Multiphase Materials Enabled by Plant-Based Particles: Stabilization Mechanisms and Template-Directed Architectures

Engineering forestry bioresources into high-value materials is central to achieving global sustainability goals, but requires innovative strategies, such as leveraging widely available forest-derived biopolymers and bioparticles. This review highlights pathways toward advanced biobased materials by exploiting their inherent interfacial activity to create multiphase functional systems. The distinctive interfacial behavior and physicochemical tunability of forestry-derived components enable robust performance across a wide range of architectures, with particular relevance to emulsion-based platforms. We show that plant-based Pickering emulsions provide versatile templates for applications spanning food formulations, nutrient delivery, and the fabrication of multidimensional structures, including microspheres, fibers, and porous scaffolds. Finally, we discuss emerging challenges and opportunities in interfacial engineering and scalable processing, outlining pathways that bridge biomass valorization with high-performance, sustainable material design.