POS4-0007
Interfacial Structural Design of Charged Polymer Nanoparticles and Their Functional Applications
Topic
S4. Colloids, Interfaces, and Molecular Assemblies for Functional Soft Materials
When and Where
Sep 30, 2026
08:30 - 09:30
Room 301 (Grand Ballroom)
Session Chairs
Heesuk KIM
Jinhye BAE
Presenter(s)
Xiayun Huang (Fudan University)
Co-Author(s)
Abstract
The structural and morphological design of charged polymer nanoparticles is crucial for regulating interfacial functions and enables broad applications in adhesion, water transport, and functional sensing. In this work, a library of charged nanoparticles was constructed, including core–shell particles, Janus particles, and tadpole-like single-chain nanoparticles, with systematic control over particle composition, asymmetry, and charge distribution.
On inert solid surfaces, tadpole-like single-chain nanoparticles form uniform and stable monomolecular layers through multivalent head-group anchoring and electrostatic repulsion between charged heads, thereby significantly improving interfacial adhesion compatibility and stability. Within hydrogel networks, interpenetration and entanglement of polyelectrolyte shells generate a surface layer with a high density of charged polymers. The long-range electrostatic interactions between polymers and water regulate the hydrogen-bonding structure of water, leading to accelerated water transport and tunable evaporation rates.
This interfacial strategy can be further extended to enhanced Raman sensing platforms, where an “active enrichment–enhancement” mechanism enables rapid, broadband, and highly sensitive detection of environmental contaminants. These results provide a versatile design framework for the development of multifunctional interfacial materials based on charged polymer nanoparticles.
On inert solid surfaces, tadpole-like single-chain nanoparticles form uniform and stable monomolecular layers through multivalent head-group anchoring and electrostatic repulsion between charged heads, thereby significantly improving interfacial adhesion compatibility and stability. Within hydrogel networks, interpenetration and entanglement of polyelectrolyte shells generate a surface layer with a high density of charged polymers. The long-range electrostatic interactions between polymers and water regulate the hydrogen-bonding structure of water, leading to accelerated water transport and tunable evaporation rates.
This interfacial strategy can be further extended to enhanced Raman sensing platforms, where an “active enrichment–enhancement” mechanism enables rapid, broadband, and highly sensitive detection of environmental contaminants. These results provide a versatile design framework for the development of multifunctional interfacial materials based on charged polymer nanoparticles.
