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Showing 1 to 17 of 17 for “"dragline silk"”.
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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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Sequence-structure correlations in the MaSp1 protein of N. clavipes dragline silk
Silk is a hierarchically structured protein fiber with exceptional tensile strength and extensibility, making it one of the toughest and most versatile biocompatible materials. While experimental studies have shown that the molecular structure of silk has a direct influence on the stiffness, …
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Characterization of a family of cysteine rich proteins and development of a MaSp1 derived miniature fibroin
<p>Spider silk displays a unique balance of high tensile strength and extensibility, making it one of the toughest materials on the planet. Dragline silk, also known as the lifeline of the spider, represents one of the best studied fiber types and many labs are attempting to produce synthetic …
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Development of a codon-optimized Latrodectus hesperus MaSp1 synthetic gene for bacterial protein expression using a seamless cloning strategy
<p>Spider silk has outstanding mechanical properties, displaying high tensile strength and extensibility. The unique combination of strength and great extensibility make it one of the toughest materials in the world. Of the seven different spider silks, dragline silk, the lifeline silk of the …
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Structural heterogeneity in silk fibers and its effects on failure mechanics and supercontraction
Spider dragline silk is a protein material that has evolved over millions of years to become one of the strongest and toughest natural fibers known. Silk features a heterogeneous structure that comprises [beta]-sheet crystals embedded in an amorphous matrix. However, it is not fully understood how …
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Preferential nanoreinforcement of thermoplastic polyurethane elastomers with dispersed nano-clay
… that are both strong and tough like spider dragline silk. Inspired by the morphology of spider dragline silk and motivated to develop strong, tough, elastomeric polyurethanes to be used in soldier applications I have prepared polyurethane/clay nanocomposites. Polymer/clay nanocomposites have …
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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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Characterication of aggregate gland silk factor 1
<p>Spider silk is a high performance fiber with extraordinary mechanical properties, including high tensile strength and toughness. Due to these outstanding material properties, scientists are rapidly pursuing the production of synthetic spider silks for a variety of different applications. In …
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Characterizing small molecular weight proteins from Latrodectus hesperus dragline and tubuliform silks
<p>Spiders produce a diverse number of silk proteins that are well-known for their extraordinary mechanical and biological properties. Dragline silk has been the most prominent focus of research because of its exceptional high tensile strength and extensibility. In our research, we have focused on …
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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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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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Expression, purification, and characterization of a novel cysteine-rich silk protein expressed in the tubuliform and aggregate glands of the black widow spider : a thesis
… Latrodectus 4 hesperus produces high-performance silks with a broad range ofbiological functions and mechanical properties. The cob weaver spider spins different fibers by using seven specialized glands located in its abdomen. Egg case silk originates from the tubuliforrn gland and to date, no …
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Generation of cDNA chips from the black widow spider, latrodectus hesperus, for gene discovery and expression profiling using microarray technology, and molecular characterization of a novel silk glue protein
… to print over 3,000 unknown genes from various silk glands of the black widow spider to profile their expression patterns and to identify novel candidates. Spiders are remarkable creatures because of their ability to make different silks, each with a specific function. Some of these silks have …
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Imaging, Mechanics, Construction, and Sonification of Three-Dimensional Spider Webs
Spiders, silks and webs have adapted, survived, and prospered in most ecosystems for millions of years, despite being subjected to environmental and human pressures. They are the proof of an evolutionary success, in part due to the exceptional mechanical and biological properties of their silks but …
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An experimental study on adhesive or antiadhesiveand strong bio-inspired nanomaterials
… protein materials which constitute spider silks. In general, spider silks display superior mechanical properties but, only in the last few decades, reserachers have studied various types of silks and have evaluated their very different mechanical properties. The fact that the mechanical …