title: Tough silk fibers prepared in air using a biomimetic microfluidic chip.
abstract: Microfluidic chips with single channel were built to mimic the shear and elongation conditions in the spinning apparatus of spider and silkworm. Silk fibers dry-spun from regenerated silk fibroin (RSF) aqueous solution using the chip could be tougher than degummed natural silk. The artificial silk exhibited a breaking strength up to 614 MPa, a breaking elongation up to 27% and a breaking energy of 101 kJ/kg.
authors.affiliation: State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, PR China. Electronic address: road.luo@mail.dhu.edu.cn.
authors.forename: Jie
authors.initials: J
authors.lastname: Luo
authors.affiliation: State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, PR China. Electronic address: zhanglelerok@163.com.
authors.forename: Lele
authors.initials: L
authors.lastname: Zhang
authors.affiliation: State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, PR China. Electronic address: pengqingfa08@126.com.
authors.forename: Qingfa
authors.initials: Q
authors.lastname: Peng
authors.affiliation: State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, PR China. Electronic address: sunmenjie@hotmail.com.
authors.forename: Mengjie
authors.initials: M
authors.lastname: Sun
authors.affiliation: State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, PR China. Electronic address: zyp@dhu.edu.cn.
authors.forename: Yaopeng
authors.initials: Y
authors.lastname: Zhang
authors.affiliation: State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, PR China. Electronic address: hlshao@dhu.edu.cn.
authors.forename: Huili
authors.initials: H
authors.lastname: Shao
authors.affiliation: State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, PR China. Electronic address: xchu@dhu.edu.cn.
authors.forename: Xuechao
authors.initials: X
authors.lastname: Hu
mesh_terms: D000388:Air; D000818:Animals; D032701:Biomimetics / Q000379:methods; D012831:Bombyx / Q000378:metabolism; D005349:Fibroins / Q000737:chemistry; D044085:Microfluidics / Q000379:methods; D047011:Silk / Q000737:chemistry*; D012996:Solutions / Q000737:chemistry; D013112:Spiders / Q000378:metabolism
chemical_list: D047011:Silk; D012996:Solutions; D005349:Fibroins
keywords: Artificial silk; Microfluidics; Silk fibroin; Silkworm; Spider