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Showing 1 to 20 of 34 for “"spider silk"”.
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Spinning of synthetic spider silk-like fibers and ex vivo rheology of spider silk
Spider silk has been hailed as nature's super-fiber based on its mechanical properties. A synthetic analog would have numerous applications, from the textile industry to suspension cables for bridges. This thesis discusses attempts to spin a synthetic spider silk-like material (a concentrated …
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Fog Harvesting: Inspired by Spider Silk
… this research. This thesis topic is inspired by spider silk's ability to direct water droplets to certain locations to further enhance water collecting rate. This directional droplet movement is caused by spindle-knot and joint structure on the biomimetic silk. The spindle-knot is randomly …
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Biomimicry of the spider silk spinning apparatus
<p>Spider silk is known for its extraordinary material properties, being both very strong and extensible. Even though the fibers outperform many synthetic and natural materials, it is impractical to collect industrial amounts of silk from spiders due to their cannibalistic and venomous nature; they …
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Material characterization of an engineered spider silk protein and conception of a process for its biomimetic spinning
Spinnenseide produziert von Radnetzspinnen bietet durch seine Kombination aus mechanischer Stärke und Dehnbarkeit eine Vielzahl an Möglichkeiten für den Einsatz in technischen Anwendungen. In dieser Arbeit wurden künstliche Fasern zum allerersten Mal in einem rein wässrigen biomimetischen Prozess …
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Correlations between physical and structural properties of spider silk - Correlaties tussen fysische en structurele eigenschappen van spinnenzijde
Spinnen produceren tot zeven verschillende draden met opmerkelijke mechanische eigenschappen. Als gevolg hiervan is er de laatste jaren veel interesse ontstaan in het ontwerp van deze materialen voor de ontwikkeling van nieuwe proteïne-gebaseerde polymeren. Daarvoor is het vereist om de relaties …
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Characterization of a novel aggregate-gland-derived spider silk protein in Latrodectus Hesperus : from sequence to propsoed function
<p>Spider silk from the female black widow spider, Latrodectus hesperus, is made of extraordinary biomolecules of nature. Efforts of the scientific community to commercially synthesize silks have become a collaborating, yet competitive race, to characterize the proteins that contribute to its …
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The Synthetic spider silk fibers spun from Pyriform Spidroin 2, a glue silk protein discovered in orb-weaving spider attachment discs
<p>Spider attachrnentdisc silk fibers are spun into a viscous liquid that rapidly solidifies, gluing dragline silk fibers to substrates for locomotion or web construction. Here we report the identification and artificial spinning of a novel attachment disc glue silk fibroin, Pyriform Spidroin 2 …
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Bulletproof gossamer : spinning a superfiber
Spider silk is a material of extraordinary beauty and utility. From the spider's perspective, it is foremost a building material, but also a safety net, a sensory organ, a weapon. From a human perspective, it is a material of extraordinary mechanical properties, an object of artistic and cultural …
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Multiscale models based on statistical mechanics and physically-based machine learning for the thermo-hygro-mechanical behavior of spider-silk-like hierarchical materials
… most extensively studied natural materials is spider silk, renowned for its outstanding mechanical properties, which include exceptional strength and toughness. Owing to its wide range of properties, which vary depending on factors such as the type of silk (up to seven) that each spider can …
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The conserved C-terminal domain of spider tubuliform spidroin 1 contributes to extensibility in synthetic fibers
<p>Spider silk is renowned for its extraordinary mechanical properties, having a balance of high tensile strength and extensibility. To date, the majority of studies have focused on the production of dragline silks from synthetic spider silk gene products. Here we report the first mechanical …
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Molecular dynamics analysis of supercontraction in spider dragline silk
Spider dragline silk is a material that has evolved over millions of years to develop finely tuned mechanical properties. It is a protein-based fiber, used as the main structural component in spider webs and as a lifeline for the spider, and it combines strength and extensibility to give it …
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Influencia de la radiación ultravioleta en el comportamiento mecánico y en la microestructura de las fibras de seda de araña
… inspiradas en el hilo de araña. Summary Spider silk fibers are an enormously attractive material. Their high tensile strength and strain to breaking impart them with the highest work to fracture of all known materials. This singular property has justified the significant efforts devoted …
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Molecular identification of silk proteins in the gumfooted lines and attachment discs of the black widow spider, latrodectus hesperus
<p>Silks from araneoid spiders have become an active area of research for material scientists, biochemists, and molecular biologists. Mechanical properties of spider silk such as elasticity, tensile strength, and toughness make the manufacturing of silk for medical sutures, body armor, ropes and …
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Size-dependent mechanical properties of beta-structures in protein materials
Protein materials such as spider silk can be exceptionally strong, and they can stretch tremendously before failure. Notably, silks are made entirely of proteins, which owe their structure and stability to weak molecular interactions, in particular, hydrogen bonds (H-bonds). Beta-structures, a …
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Development of an artificial silk protein on the basis of a lacewing egg stalk protein
Silks are widely used in textile industry as clothing and furnishings due to their tensile strength, smoothness, soft texture, lustre, and drape. Most commonly silk of the mulberry silkworm Bombyx mori (B. mori) is used in such applications, however, silks evolved independently in many different …
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Expression, purification and characterization of the structural properties of recombinant Pysp1 and Pysp2 spidroins
<p>Spider silk is a natural high-performance biopolymer with superior mechanical propetiies. Although these fibers out perfmm several man-made and natural biomaterials, there are cha llenges to be circumvented before commercialization. One of the silkproducing glands warranting further study is the …
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Structural characterization of spider coating petide [i.e., peptide] 1 and 2 of the black widow spider, Latrodectus hesperus
<p>Spider silk is one of the most versatile material.s in nature with great mechanical properties, exceeding some of the best man made materials. Native and synthetically produced silk has been used in a wide array of applications throughout the history of mankind including nets, bandages and …
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Isolation and characterization of the tubuliform spidroin 1 promoter from the black widow spider, Latrodectus Hesperus
… known about the transcriptional regulation of spider silk as most studies have focused on the material properties of silks. We isolated and mapped the TuSp1 core promoter from the black widow spider, Latrodectus hesperus. Using a genomic DNA walking strategy, we have isolated an upstream …
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Evidence that aciniform silk and minor ampullate silk are major constituents of wrapping silk from the black widow
<p>Spider silk is one of the most remarkable materials produced in the natural world and its strength and extensibility are legendary. To date, the majority of studies have been performed on the following silks: dragline, capture spiral, and eggcase silk. The primary goal of this study was to …
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