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Wei S, Li Y, Li K, Kang A, Zhang S, Feng T, Zhang H, Zhong C. Functional amyloid-chitin hybrid ink coupled with flexible fabrication approaches for diverse macro and micro-structures. Mater Today Bio 2022; 13:100179. [PMID: 34938993 PMCID: PMC8661696 DOI: 10.1016/j.mtbio.2021.100179] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 11/29/2021] [Accepted: 12/01/2021] [Indexed: 10/19/2022] Open
Abstract
The precise fabrication of artificially designed molecular complexes into ordered structures resembling their natural counterparts would find broad applications but remains a major challenge in the field. Here we genetically design chitin-binding domain (CBD)-containing amyloid proteins, and rationally fabricate well-ordered CBD-containing functional amyloid-chitin complex structures by coupling a top-down manufacturing process with a bottom-up self-assembly. Our fabrication approach starts with the dissolution of both CBD-containing functional amyloid and chitin in hexafluoroisopropanol (HFIP) to make a hybrid ink. This hybrid ink platform, coupled with multiple fabrication methods including airbrushing, electrospinning and soft-lithography, produces a series of unique freestanding structures. The structural features of the products, such as the ability to direct the light path and mimicking of the extracellular matrix enable applications in functional light gratings and cell culture, respectively. Further genetic engineering of the protein component allowed tunable functionalization of these materials, including nanoparticle immobilization and protein conjugation, resulting in broad applications in electronic devices and enzyme immobilization. Our technological platform can drive new advances in biocatalysis, tissue engineering, biomedicine, photonics and electronics.
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Affiliation(s)
- Shicao Wei
- Materials and Physical Biology Division, School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210, China
| | - Yingfeng Li
- Materials and Physical Biology Division, School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210, China
| | - Ke Li
- Materials and Physical Biology Division, School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210, China
| | - Anqi Kang
- Materials and Physical Biology Division, School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210, China
| | - Siyu Zhang
- Materials and Physical Biology Division, School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210, China
| | - Teng Feng
- School of Life Science and Technology, ShanghaiTech University, Shanghai, 201210, China
| | - Hui Zhang
- School of Life Science and Technology, ShanghaiTech University, Shanghai, 201210, China
| | - Chao Zhong
- Materials and Physical Biology Division, School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210, China
- Center for Materials Synthetic Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, China
- CAS Key Laboratory of Quantitative Engineering Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
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