INS11-1003
Adaptive Sharkskin-Inspired Microstructured Surfaces through Magnetic Programming and Dynamic Network Reconfiguration
Topic
S11. PMSE–PSK50 Anniversary Symposium: Advancing Polymer Science for a Sustainable and Intelligent Future
When and Where
Sep 29, 2026
16:15 - 16:30
Room 110
Session Chairs
Dhriti NEPAL
Presenter(s)
Jeong Jae (JJ) Wie (Hanyang University)
Co-Author(s)
Abstract
Bioinspired microstructured surfaces offer unique opportunities for controlling interfacial, mechanical, and transport properties through structural anisotropy. However, most artificial microstructures are fabricated with fixed geometries, limiting their adaptability and post-fabrication tunability. Here, we present a programmable polymer platform that combines magnetic actuation, shape fixation, and light-induced reconfiguration for the fabrication of adaptive microstructured surfaces. Magnetically responsive polymer composites were used to construct three-dimensional microdenticle architectures inspired by the staggered and overlapping structure of sharkskin. The resulting microstructures exhibited anisotropic functionalities arising from their controlled geometry and orientation. To introduce reconfigurability, a covalent adaptable network incorporating dynamic disulfide bonds was employed. Upon UV irradiation, bond exchange reactions enabled shape reconfiguration and fixation under ambient conditions, allowing the microstructures to be dynamically programmed after fabrication. By integrating magnetic actuation with photo-induced network rearrangement, complex three-dimensional structures could be formed, reconfigured, and stabilized in a contactless manner. In addition, spatially controlled irradiation enabled localized shape transformation and patterning of surface morphology. This work demonstrates a versatile strategy for creating adaptive microstructured polymer systems with programmable anisotropic functionality. The combination of bioinspired design, magnetic programming, and dynamic network chemistry provides new opportunities for reconfigurable surfaces, soft robotic components, and stimuli-responsive polymeric devices.
