000079644 001__ 79644
000079644 005__ 20200716101451.0
000079644 0247_ $$2doi$$a10.1038/s41598-019-38712-6
000079644 0248_ $$2sideral$$a112287
000079644 037__ $$aART-2019-112287
000079644 041__ $$aeng
000079644 100__ $$aPérez-Rigueiro José
000079644 245__ $$aEmergence of supercontraction in regenerated silkworm (Bombyx mori) silk fibers
000079644 260__ $$c2019
000079644 5060_ $$aAccess copy available to the general public$$fUnrestricted
000079644 5203_ $$aThe conditions required for the emergence of supercontraction in regenerated silkworm (Bombyx mori) silk fibers are assessed through an experimental approach that combines the spinning of regenerated fibers with controlled properties and their characterization by 13 C solid-state nuclear magnetic resonance (NMR). Both supercontracting and non-supercontracting regenerated fibers are produced using the straining flow spinning (SFS) technique from 13 C labeled cocoons. The short-range microstructure of the fibers is assessed through 13 C CP/MAS in air and 13 C DD/MAS in water, and the main microstructural features are identified and quantified. The mechanical properties of the regenerated fibers and their microstructures are compared with those of natural silkworm silk. The combined analysis highlights two possible key elements as responsible for the emergence of supercontraction: (1) the existence of an upper and a lower limit of the amorphous phase compatible with supercontraction, and (2) the existence of two ordered phases, ß-sheet A and B, which correspond to different packing arrangements of the protein chains.
000079644 536__ $$9info:eu-repo/grantAgreement/ES/MINECO/DPI2016-78887-C3-1-R$$9info:eu-repo/grantAgreement/ES/MINECO-FEDER/MAT2016-75544-C2-1-R$$9info:eu-repo/grantAgreement/ES/MINECO-FEDER/MAT2016-79832-R
000079644 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttp://creativecommons.org/licenses/by/3.0/es/
000079644 590__ $$a3.998$$b2019
000079644 591__ $$aMULTIDISCIPLINARY SCIENCES$$b17 / 71 = 0.239$$c2019$$dQ1$$eT1
000079644 592__ $$a1.341$$b2019
000079644 593__ $$aMultidisciplinary$$c2019$$dQ1
000079644 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000079644 700__ $$aMadurga Rodrigo
000079644 700__ $$aGañán-Calvo Alfonso M.
000079644 700__ $$aElices, Manuel
000079644 700__ $$aGuinea, Gustavo V.
000079644 700__ $$aTasei, Yugo
000079644 700__ $$aNishimura, Akio
000079644 700__ $$aMatsuda, Hironori
000079644 700__ $$aAsakura, Tetsuo
000079644 773__ $$g9 (2019), 2398 [14 pp.]$$pSci. rep.$$tScientific Reports$$x2045-2322
000079644 8564_ $$s1215514$$uhttps://zaguan.unizar.es/record/79644/files/texto_completo.pdf$$yVersión publicada
000079644 8564_ $$s9152$$uhttps://zaguan.unizar.es/record/79644/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000079644 909CO $$ooai:zaguan.unizar.es:79644$$particulos$$pdriver
000079644 951__ $$a2020-07-16-09:06:40
000079644 980__ $$aARTICLE