Journal article
Stimuli-responsive composite biopolymer actuators with selective spatial deformation behavior
Proceedings of the National Academy of Sciences - PNAS, Vol.117(25), pp.14602-14608
06/23/2020
DOI: 10.1073/pnas.2002996117
PMCID: PMC7322001
PMID: 32522869
Abstract
Bioinspired actuators with stimuli -responsive and deformable properties are being pursued in fields such as artificial tissues, medical devices and diagnostics, and intelligent biosensors. These applications require that actuator systems have biocompatibility, controlled deformability, biodegradability, mechanical durability, and stable reversibility. Herein, we report a bionic actuator system consisting of stimuli-responsive genetically engineered silk-elastin-like protein (SELP) hydrogels and wood-derived cellulose nanofibers (CNF5), which respond to temperature and ionic strength underwater by ecofriendly methods. Programmed site-selective actuation can be predicted and folded into three-dimensional (3D) origami-like shapes. The reversible deformation performance of the SELP/CNF actuators was quantified, and complex spatial transformations of multilayer actuators were demonstrated, including a biomimetic flower design with selective petal movements. Such actuators consisting entirely of biocompatible and biodegradable materials will offer an option toward constructing stimuli-responsive systems for in vivo biomedicine soft robotics and bionic research.
Details
- Title: Subtitle
- Stimuli-responsive composite biopolymer actuators with selective spatial deformation behavior
- Creators
- Yushu Wang - Tufts UniversityWenwen Huang - Zhejiang UniversityYu Wang - Tufts UniversityXuan Mu - Tufts UniversityShengjie Ling - ShanghaiTech UniversityHaipeng Yu - Northeast Forestry UniversityWenshuai Chen - Northeast Forestry UniversityChengchen Guo - Tufts UniversityMatthew C. Watson - Tufts UniversityYingjie Yu - Tufts UniversityLauren D. Black - Tufts UniversityMeng Li - Tufts UniversityFiorenzo G. Omenetto - Tufts UniversityChunmei Li - Tufts UniversityDavid L. Kaplan - Tufts University
- Resource Type
- Journal article
- Publication Details
- Proceedings of the National Academy of Sciences - PNAS, Vol.117(25), pp.14602-14608
- DOI
- 10.1073/pnas.2002996117
- PMID
- 32522869
- PMCID
- PMC7322001
- NLM abbreviation
- Proc Natl Acad Sci U S A
- ISSN
- 0027-8424
- eISSN
- 1091-6490
- Publisher
- Natl Acad Sciences
- Number of pages
- 7
- Grant note
- W911NF-17-1-0384 / Army Research Office P41EB002520; U01EB014976 / NIH; United States Department of Health & Human Services; National Institutes of Health (NIH) - USA China Scholarship Council K20200099 / Fundamental Research Funds for the Central Universities
- Language
- English
- Date published
- 06/23/2020
- Academic Unit
- Roy J. Carver Department of Biomedical Engineering
- Record Identifier
- 9984277261902771
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