DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Fast Photoactuation Driven by Supramolecular Polymers Integrated into Covalent Networks

Journal Article · · Advanced Functional Materials
 [1];  [2]; ORCiD logo [1]; ORCiD logo [2];  [1]; ORCiD logo [3];  [4]; ORCiD logo [5]
  1. Department of Materials Science and Engineering Northwestern University 2220 Campus Drive Evanston IL 60208 USA
  2. Simpson Querrey Institute Northwestern University 303 East Superior Street, 11th floor Chicago IL 60611 USA
  3. Simpson Querrey Institute Northwestern University 303 East Superior Street, 11th floor Chicago IL 60611 USA, Department of Chemistry Northwestern University 2145 Sheridan Road Evanston IL 60208 USA
  4. Department of Materials Science and Engineering Northwestern University 2220 Campus Drive Evanston IL 60208 USA; Simpson Querrey Institute Northwestern University 303 East Superior Street; 11th floor Chicago IL 60611 USA; Department of Chemistry Northwestern University 2145 Sheridan Road Evanston IL 60208 USA; Department of Chemical and Biological Engineering Northwestern University 2145 Sheridan Road Evanston IL USA; Department of Physics and Astronomy Northwestern University 2145 Sheridan Road Evanston IL USA
  5. Department of Materials Science and Engineering Northwestern University 2220 Campus Drive Evanston IL 60208 USA; Simpson Querrey Institute Northwestern University 303 East Superior Street; 11th floor Chicago IL 60611 USA; Department of Chemistry Northwestern University 2145 Sheridan Road Evanston IL 60208 USA; Department of Medicine Northwestern University 676 North St. Clair Street Chicago IL 60611 USA; Department of Biomedical Engineering Northwestern University 2145 Sheridan Road Evanston IL 60208 USA

Abstract The design of robotic soft matter capable of emulating the complex movements of living organisms such as mechanical actuation, shape transformation, and autonomous translation remains a grand challenge in soft materials science. Functionalized hydrogels are excellent candidates for such materials since they can operate in water and are highly responsive to their environment, but their response times can be slow. This work investigates fast photoactuation of hybrid bonding hydrogels composed of peptide amphiphile (PA) supramolecular nanofibers bonded covalently to merocyanine‐based (MCH + ) photoresponsive networks. By incorporating ionizable acrylic acid (AA) co‐monomers in these networks, photoactuation at nearly neutral pH is observed, which in turn enables a new mechanism to accelerate the response by triggering the bundling of supramolecular nanofibers by rapid proton exchange reactions. Furthermore, this rapid response and its consequent large shape transformations lead to hydrogels capable of spontaneously tracking external light sources inspired by pedicellariae, defensive organs present in echinoderms like the starfish and the sea urchin. This work suggests that hybrid bonding polymers (HBPs), which leverage the interplay between supramolecular assemblies and covalent networks, offer novel strategies to design rapidly actuating soft robotic materials.

Sponsoring Organization:
USDOE
Grant/Contract Number:
NONE; SC0000989
OSTI ID:
2479399
Journal Information:
Advanced Functional Materials, Journal Name: Advanced Functional Materials Journal Issue: 49 Vol. 34; ISSN 1616-301X
Publisher:
Wiley Blackwell (John Wiley & Sons)Copyright Statement
Country of Publication:
Germany
Language:
English

References (43)

New Materials through Bioinspiration and Nanoscience journal September 2013
Controlled Structure and Properties of Thermoresponsive Nanoparticle–Hydrogel Composites journal July 2004
Bio-inspired Design of Submerged Hydrogel-Actuated Polymer Microstructures Operating in Response to pH journal January 2011
Developmentally-Inspired Shrink-Wrap Polymers for Mechanical Induction of Tissue Differentiation journal February 2014
Design and Applications of Photoresponsive Hydrogels journal March 2019
Electrostatic Control of Bioactivity journal May 2011
A Thermoresponsive Hydrogel Formed from a Star-Star Supramolecular Architecture journal May 2013
Photoacidity of Indolinospirobenzopyrans in Water journal March 2023
3D Printing of Supramolecular Polymer Hydrogels with Hierarchical Structure journal January 2021
Skeletal Muscle: A Brief Review of Structure and Function journal October 2014
Brittlestars with a bite: a new kind of pedicellaria in echinoderms journal September 2021
Hydrogels: from controlled release to pH-responsive drug delivery journal May 2002
Thermo- and pH-responsive polymers in drug delivery☆ journal December 2006
Operant Learning: Octopus Arms Need Brains to Learn Their Way journal November 2020
Synergistic photoactuation of bilayered spiropyran hydrogels for predictable origami-like shape change journal April 2021
Design of materials with supramolecular polymers journal December 2020
Supramolecular Assembly of Peptide Amphiphiles journal September 2017
Self-Repair of Structure and Bioactivity in a Supramolecular Nanostructure journal October 2018
Multiresponsive Soft Actuators Based on a Thermoresponsive Hydrogel and Embedded Laser-Induced Graphene journal March 2021
Hybrid Nanocrystals of Small Molecules and Chemically Disordered Polymers journal May 2022
Stimuli-Responsive Chemomechanical Actuation: A Hybrid Materials Approach journal November 2013
pH and Amphiphilic Structure Direct Supramolecular Behavior in Biofunctional Assemblies journal October 2014
Light-Driven Expansion of Spiropyran Hydrogels journal April 2020
Photodynamic Control of Bioactivity in a Nanofiber Matrix journal November 2012
Synthetic homeostatic materials with chemo-mechano-chemical self-regulation journal July 2012
Small-scale soft-bodied robot with multimodal locomotion journal January 2018
Artificial muscle-like function from hierarchical supramolecular assembly of photoresponsive molecular motors journal December 2017
Bioinspired structural materials journal October 2014
Covalent-supramolecular hybrid polymers as muscle-inspired anisotropic actuators journal June 2018
Multi-responsive hydrogel structures from patterned droplet networks journal March 2020
Supramolecular–covalent hybrid polymers for light-activated mechanical actuation journal June 2020
Spiropyran-based dynamic materials journal January 2014
The evolution of spiropyran: fundamentals and progress of an extraordinarily versatile photochrome journal January 2019
Adaptive all the way down: Building responsive materials from hierarchies of chemomechanical feedback journal January 2013
Self-protonating spiropyran-co-NIPAM-co-acrylic acid hydrogel photoactuators journal January 2013
Opto-chemo-mechanical transduction in photoresponsive gels elicits switchable self-trapped beams with remote interactions journal February 2020
Bioinspiration: something for everyone journal August 2015
Self-Organization, Embodiment, and Biologically Inspired Robotics journal November 2007
Biorobotics: Using robots to emulate and investigate agile locomotion journal October 2014
Simultaneous covalent and noncovalent hybrid polymerizations journal January 2016
Phototactic guidance of a tissue-engineered soft-robotic ray journal July 2016
Hydrogels muscle their way into new territory journal February 2019
Hydrogel-based strong and fast actuators by electroosmotic turgor pressure journal April 2022

Similar Records

Related Subjects