Study on the Mechanical Properties of Different Silkworm Silk Fibers

2009 ◽  
Vol 43 (22) ◽  
pp. 2521-2531 ◽  
Author(s):  
Hoi-Yan Cheung ◽  
Kin-Tak Lau ◽  
Mei-Po Ho ◽  
Ayman Mosallam
Keyword(s):  
Mechanical Properties ◽  
Silk Fibers ◽  
Silkworm Silk

Preparation of Braided Silk as a Tubular Tissue Engineering Scaffold

2011 ◽  
Vol 175-176 ◽  
pp. 95-99 ◽  
Author(s):  
Hui Jing Zhao ◽  
Ming Zhong Li
Keyword(s):  
Mechanical Properties ◽  
Tissue Engineering ◽  
Unit Area ◽  
Tissue Engineering Scaffold ◽  
The Other ◽  
The Novel ◽  
Ethanol Treatment ◽  
Silk Fibers ◽  
Long Time ◽  
Silkworm Silk

Silkworm silk has been recognized as a satisfactory biomaterial for long time due to its exceptional biocompatibility, biodegradability, mechanical properties etc. For example, silk fibers in the form of sutures have been used for centuries. The aim of this study is to discuss the potential usage of silk as the novel biomedical devices, such as blood vessels. In this study, cuit silks prepared from degummed raw silks were twisted as threads with four different yarn linear densities. A specific braiding machine was used to weave those threads into a tube. Subsequently two different groups of silk tubes were prepared. One was treated by ethanol and the other without. Thickness, porosity, mass per unit area of two groups of braided tubes were measured. Its mechanical properties were also studied. The influence of ethanol treatment and various yarn linear densities on its structural and mechanical properties was also studied. Results indicated that structural and mechanical properties of the tubes were significatly changed by the yarn linear densities and ethanol treatment. Conclusively, braided silk tube could be a potential blood vessel tissue engineering scaffold.

scholarly journals Effect of Different Additives in Diets on Secondary Structure, Thermal and Mechanical Properties of Silkworm Silk

Materials ◽  
2018 ◽  
Vol 12 (1) ◽  
pp. 14 ◽  
Author(s):  
Lan Cheng ◽  
Huiming Huang ◽  
Jingyou Zeng ◽  
Zulan Liu ◽  
Xiaoling Tong ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Amino Acid ◽  
Large Scale ◽  
Fiber Composites ◽  
Metallic Ions ◽  
Silk Fibers ◽  
Random Coils ◽  
Silkworm Silk ◽  
Β Sheet

In this study, eight types of materials including nanoparticles (Cu and CaCO3), metallic ions (Ca2+ and Cu2+), and amino acid substances (serine, tyrosine, sericin amino acid, and fibroin amino acid) were used as additives in silkworm diets to obtain in-situ modified silk fiber composites. The results indicate that tyrosine and fibroin amino acids significantly increase potassium content in silk fibers and induce the transformation of α-helices and random coils to β-sheet structures, resulting in higher crystallinities and better mechanical properties. However, the other additives-modified silk fibers show a decrease in β-sheet contents and a slight increase or even decrease in tensile strengths. This finding provides a green and effective approach to produce mechanically enhanced silk fibers with high crystallinity on a large scale. Moreover, the modification mechanisms of these additives were discussed in this study, which could offer new insights into the design and regulation of modified fibers or composites with desirable properties and functions.

Electrospun Mussel-derived Silk Fibers

2020 ◽  
Vol 14 (1) ◽  
pp. 14-20 ◽  
Author(s):  
Dan Tian ◽  
Dan-Ni Yu ◽  
Yi-Ming Xu ◽  
Xu-Yin Ding ◽  
Zhou-Yu Zhang ◽  
...  
Keyword(s):  
High Strength ◽  
Alcohol Solution ◽  
Protein Solution ◽  
High Mechanical Strength ◽  
Silk Fibers ◽  
Spider Dragline Silk ◽  
Blue Mussels ◽  
Wetting Properties ◽  
The World ◽  
Silkworm Silk

Background: Though there are many patents on silk, patents on sea silk are rare. Sea silk is one of the most coveted materials in the world, and the technology to make sea silk is at an extremely high risk of extinction. Unlike spider dragline silk and silkworm silk, this natural silk has been forgotten in the academic commune for millennia, though it has many fascinating properties: high strength, remarkable adhesion, extreme lightweight, and others. Method: Here we report that mussel-derived silk fibers can be fabricated by electrospinning. Instead of extracting proteins from byssus, we directly use the protein solution from alive blue mussels, which are intensely commercially used. The protein solution and the polyvinyl alcohol solution are mixed together to produce mussel-based silk fibers. Results: The mussel-based silk fibers have many special properties like high mechanical strength, remarkable super-contraction and good wetting properties. Conclusion: The electrospinning mussel-based silk fibers have the potential for use as a replacement for the rarest sea silk and as a new bio-inspired material with multi-functions.

Secondary structure transformation and mechanical properties of silk fibers by ultraviolet irradiation and water

2018 ◽  
Vol 89 (14) ◽  
pp. 2802-2812 ◽  
Author(s):  
Hongling Liu ◽  
Suhua Zhao ◽  
Qian Zhang ◽  
Tasixiang Yeerken ◽  
Weidong Yu
Keyword(s):  
Mechanical Properties ◽  
Secondary Structure ◽  
Ultraviolet Irradiation ◽  
Structure Transformation ◽  
Silk Fibers

scholarly journals Silkworm silk fibers vs PEEK reinforced rubber luminescent strain gauge and stretchable composites

2018 ◽  
Vol 156 ◽  
pp. 254-261 ◽  
Author(s):  
Luca Valentini ◽  
Silvia Bittolo Bon ◽  
Lorenzo Mussolin ◽  
Nicola M. Pugno
Keyword(s):  
Strain Gauge ◽  
Silk Fibers ◽  
Silkworm Silk

scholarly journals Correlation between processing conditions, microstructure and mechanical behavior in regenerated silkworm silk fibers

2011 ◽  
Vol 50 (7) ◽  
pp. 455-465 ◽  
Author(s):  
Gustavo R. Plaza ◽  
Paola Corsini ◽  
Enrico Marsano ◽  
José Pérez-Rigueiro ◽  
Manuel Elices ◽  
...  
Keyword(s):  
Mechanical Behavior ◽  
Processing Conditions ◽  
Silk Fibers ◽  
Silkworm Silk

scholarly journals Mechanical properties and application analysis of spider silk bionic material

e-Polymers ◽  
2020 ◽  
Vol 20 (1) ◽  
pp. 443-457
Author(s):  
Yunqing Gu ◽  
Lingzhi Yu ◽  
Jiegang Mou ◽  
Denghao Wu ◽  
Peijian Zhou ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Spider Silk ◽  
Superior Performance ◽  
Biomimetic Materials ◽  
Silk Fibers ◽  
Practical Applications ◽  
Spider Web ◽  
Potential Applications ◽  
And Performance ◽  
Fiber Materials

AbstractSpider silk is a kind of natural biomaterial with superior performance. Its mechanical properties and biocompatibility are incomparable with those of other natural and artificial materials. This article first summarizes the structure and the characteristics of natural spider silk. It shows the great research value of spider silk and spider silk bionic materials. Then, the development status of spider silk bionic materials is reviewed from the perspectives of material mechanical properties and application. The part of the material characteristics mainly describes the biocomposites based on spider silk proteins and spider silk fibers, nanomaterials and man-made fiber materials based on spider silk and spider-web structures. The principles and characteristics of new materials and their potential applications in the future are described. In addition, from the perspective of practical applications, the latest application of spider silk biomimetic materials in the fields of medicine, textiles, and sensors is reviewed, and the inspiration, feasibility, and performance of finished products are briefly introduced and analyzed. Finally, the research directions and future development trends of spider silk biomimetic materials are prospected.

Origin of the variability of the mechanical properties of silk fibers: 4. Order/crystallinity along silkworm and spider fibers

2014 ◽  
Vol 45 (10) ◽  
pp. 895-902 ◽  
Author(s):  
Marine Wojcieszak ◽  
Aline Percot ◽  
Sylvie Noinville ◽  
Gwénaël Gouadec ◽  
Bernard Mauchamp ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Silk Fibers

scholarly journals Mesoscale structure development reveals when a silkworm silk is spun

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Quan Wan ◽  
Mei Yang ◽  
Jiaqi Hu ◽  
Fang Lei ◽  
Yajun Shuai ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Hierarchical Structure ◽  
Ex Vivo ◽  
Silk Fibre ◽  
Structure Development ◽  
Sequence Of Events ◽  
Spinning Process ◽  
Consolidation Phase ◽  
Definition Of ◽  
Silkworm Silk

AbstractSilk fibre mechanical properties are attributed to the development of a multi-scale hierarchical structure during spinning. By careful ex vivo processing of a B. mori silkworm silk solution we arrest the spinning process, freezing-in mesoscale structures corresponding to three distinctive structure development stages; gelation, fibrilization and the consolidation phase identified in this work, a process highlighted by the emergence and extinction of ‘water pockets’. These transient water pockets are a manifestation of the interplay between protein dehydration, phase separation and nanofibril assembly, with their removal due to nanofibril coalescence during consolidation. We modeled and validated how post-draw improves mechanical properties and refines a silk’s hierarchical structure as a result of consolidation. These insights enable a better understanding of the sequence of events that occur during spinning, ultimately leading us to propose a robust definition of when a silkworm silk is actually ‘spun’.

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