Topology‐Dependent pH‐Responsive Actuation and Shape Memory Programming for Biomimetic 4D Printing

• DOI: 10.1002/marc.202300074
• Publication Date: 2023-03-07T09:59:35Z
• Authors: Houwen Matthew Pan; Atsushi Goto
• Keywords: Biomimetics; Shape-memory polymer; Soft Robotics; Bionics; Smart material

Biomimetic actuators are critical components of bionics research and have found applications in the fields biomedical devices, soft robotics, smart biosensors. This paper reports first study nanoassembly topology-dependent actuation shape memory programming biomimetic 4D printing. Multi-responsive flower-like block copolymer nanoassemblies (vesicles) utilized as photocurable printing materials for digital light processing (DLP) The enhance thermal stability, attributed to their surface loop structures on shell surfaces. Actuators prepared from these display bending response pH temperature-programmable properties. octopus-like programmed with multiple patterns, large angles (≈500°), excellent weight-to-lift ratios (≈60), moderate time (≈5 min). Thus, shape-programmable intelligent successfully developed