AI Article Synopsis
- The study focuses on a modified version of spider silk protein, known as Amy-6rep, which has improved mechanical properties and spinning performance for applications in nanotechnology.
- By altering the sequence of the spidroin, the researchers increased its expression by approximately 200% and enhanced its self-assembly capabilities.
- The successful electrospinning of Amy-6rep results in nanofibers that have promising triboelectric generation abilities, showing potential for use in artificial nanogenerators.
Article Abstract
The unique 3D structure of spider silk protein (spidroin) determines the excellent mechanical properties of spidroin fiber, but the difficulty of heterologous expression and poor spinning performance of recombinant spider silk protein limit its application. A high-yield low-molecular-weight biomimetic spidroin (Amy-6rep) is obtained by sequence modification, and its excellent spinning performance is verified by electrospinning it for use as a nanogenerator. Amy-6rep increases the highly fibrogenic microcrystalline region in the core repeat region of natural spidroin with limited sequence length and replaces the polyalanine sequence with an amyloid polypeptide through structural similarity. Due to sequence modification, the expression of Amy-6rep increased by ≈200%, and the self-assembly performance of Amy-6rep significantly increased. After electrospinning with Amy-6rep, the nanofibers exhibit good tribopower generation capacity. In this paper, a biomimetic spidroin sequence design with high yield and good spinning performance is reported, and a strategy for electrospinning to produce an artificial nanogenerator is explored.
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|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11165546 | PMC |
| http://dx.doi.org/10.1002/advs.202400128 | DOI Listing |
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