Wet-spinning Silk
Wet-spinning Silk - Related Videos
08:28
Microfluidic Dry-spinning and Characterization of Regenerated Silk Fibroin Fibers
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Cited by 6 •
2017
A protocol for the microfluidic spinning and microstructure characterization of regenerated silk fibroin monofilament is presented.
06:56
Wet-spinning-based Molding Process of Gelatin for Tissue Regeneration
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Cited by 5 •
2019
We developed and describe a protocol based on the wet spinning concept, for the construction of gelatin-based biomaterials used for the application of tissue engineering.
11:14
Designing Silk-silk Protein Alloy Materials for Biomedical Applications
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Cited by 2 •
2014
Blending is an efficient approach to generate biomaterials with a broad range of properties and combined features. By predicting the molecular interactions between different natural silk proteins, new silk-silk protein alloy platforms with tunable mechanical resiliency, electrical response, optical transparency, chemical processability, biodegradability, or thermal stability can be designed.
07:58
Electrospinning of Silk Biomaterials
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2023
Silk fibers have been processed and used to create fabrics and threads for centuries. However, the solubilizing of silk fibers, thereby turning it into a versatile pre-polymer solution is a much newer technology. Solubilized silk can be processed in many different ways to create a biocompatible material with controllable mechanical properties. This video introduces the processing of silk from silk worm cocoons, and shows how the silk solution can be used to create a fiber mat via...
13:36
Synthetic Spider Silk Production on a Laboratory Scale
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Cited by 16 •
2012
Despite the outstanding mechanical and biochemical properties of spider silks, this material cannot be harvested in large quantities by conventional means. Here we describe an efficient strategy to spin artificial spider silk fibers, which is an important process for investigators studying spider silk production and their use as next-generation biomaterials.
FAQs
Solvent exchange and dehydration in the coagulation bath remove liquid from the extruded protein solution and concentrate the fibroin. This changing environment promotes rearrangement of the protein molecules, including development of β-sheet-rich crystalline regions. The resulting structural organization is important because it links the biochemical assembly process with the properties of the final silk filament.
Protein concentration, solution flow, draw ratio, and coagulation-bath composition are key control variables. Together, they influence how the protein concentrates, rearranges, and forms the fiber, thereby affecting morphology and mechanical performance. Adjusting these conditions allows researchers to investigate how processing parameters translate into differences in silk structure and material behavior.
β-sheet-rich crystalline regions contribute to the strengthening of the emerging silk fiber. Their formation reflects molecular rearrangement during solvent exchange and dehydration rather than simple removal of solvent alone. Monitoring or controlling this structural transition helps connect silk biochemistry, especially protein organization, with measurable mechanical performance in engineered fibers.
A typical workflow begins with a silk protein solution, usually containing silk fibroin, and delivers it through a spinneret. The extruded stream enters a coagulation bath, where solvent exchange and dehydration concentrate the protein and promote structural rearrangement. Researchers then evaluate how the selected concentration, flow, draw ratio, and bath composition affect fiber morphology and performance.
The technique provides a controllable setting for examining how a silk protein solution changes as it passes through extrusion, coagulation, dehydration, and drawing. Researchers can relate processing conditions to molecular rearrangement and β-sheet-rich crystalline structure. This makes the method useful for studying the connection between protein assembly, fiber formation, morphology, and mechanical behavior.
Wet-spun silk fibers can serve as engineered biomaterials in tissue engineering, drug delivery, and other biomaterial applications. Because researchers can tune processing conditions and thereby influence morphology and mechanical performance, the technique supports development of fibers suited to different experimental goals. It also links material design with biochemical understanding of silk protein organization.