ORGS1-0334
Particle Collision-Mediated Assembly of Polymer-Inorganic Hybrid Supraparticles
When and Where
Sep 28, 2026
12:00am - 12:00am
Presenter(s)
Geonho Lee (Ulsan National Institute of Science and Technology (UNIST))
Co-Author(s)
Abstract
Polymer–inorganic hybrid supraparticles have emerged as versatile building blocks for multifunctional particulate materials. However, conventional fabrication methods often require surface functionalization and carefully controlled interfacial chemistry to integrate dissimilar particles into a stable hybrid structure. This study presents a particle collision-mediated assembly strategy for the fabrication of polymer–inorganic hybrid supraparticles.
The assembly process is enabled by repeated collisions between polymer microparticles and inorganic nanoparticles. During collisions, localized deformation of the polymer surface creates favorable conditions for the incorporation of rigid nanoparticles, resulting in the formation of core–shell hybrid structures. The embedded nanoparticles remain stably immobilized on the polymer surface, generating hybrid supraparticles without the need for specific chemical modification of either component.
Because the assembly process is governed primarily by mechanical interactions rather than specific surface chemistry, the proposed strategy is applicable to a wide range of inorganic nanoparticles with different compositions and functionalities. As representative examples, magnetic Fe₃O₄ nanoparticles, photocatalytic TiO₂ nanoparticles, and porous ZIF-8 nanoparticles were successfully incorporated onto polymer microparticles through the collision-mediated assembly process. These results demonstrate that the method enables the fabrication of multifunctional hybrid supraparticles by integrating diverse inorganic components onto a common polymer platform.
This study establishes particle collision-mediated assembly as a versatile platform for constructing polymer–inorganic hybrid supraparticles and enables the rational design of hybrid particulate materials through the integration of diverse inorganic components.
The assembly process is enabled by repeated collisions between polymer microparticles and inorganic nanoparticles. During collisions, localized deformation of the polymer surface creates favorable conditions for the incorporation of rigid nanoparticles, resulting in the formation of core–shell hybrid structures. The embedded nanoparticles remain stably immobilized on the polymer surface, generating hybrid supraparticles without the need for specific chemical modification of either component.
Because the assembly process is governed primarily by mechanical interactions rather than specific surface chemistry, the proposed strategy is applicable to a wide range of inorganic nanoparticles with different compositions and functionalities. As representative examples, magnetic Fe₃O₄ nanoparticles, photocatalytic TiO₂ nanoparticles, and porous ZIF-8 nanoparticles were successfully incorporated onto polymer microparticles through the collision-mediated assembly process. These results demonstrate that the method enables the fabrication of multifunctional hybrid supraparticles by integrating diverse inorganic components onto a common polymer platform.
This study establishes particle collision-mediated assembly as a versatile platform for constructing polymer–inorganic hybrid supraparticles and enables the rational design of hybrid particulate materials through the integration of diverse inorganic components.
