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Preparation and characterization of Nephila clavipes tubuliform silk gut

Ping Jiang  Víctor Ruiz  Claudia Müller  Inmaculada Jorge  Jesús Vázquez  álvaro Ridruejo  Salvador Aznar  José Luis Cenis  Luis Messeguer  Manuel Elices  Gustavo Víctor Guinea  José Pérez-Rigueiro  
【摘要】:Tubuliform silk glands were dissected from Nephila clavipes spiders,and silk gut fibers were produced by immersing the glands in a mild acid solution and subsequent stretching.The tensile properties of the as produced fibers were obtained through tensile tests,and the stress–strain curves were compared with those of naturally spun tubuliform silk fibers.The influence on the mechanical properties of the fibers after immersion in water and drying was also discerned.The microstructure of the silk guts was obtained by X-ray diffraction(XRD) and infrared spectroscopy(FTIR).It was found that the stress–strain curves of the stretched tubuliform silk guts concur with those of their natural counterparts(tubuliform silk fibers).

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