title: Large-scale fabrication of two-dimensional spider-web-like gelatin nano-nets via electro-netting.
abstract: For the first time, two-dimensional (2D) gelatin nano-nets are fabricated by regulating the solution properties and several process parameters during electrospinning/electro-netting. The spider-web-like nano-nets that comprise interlinked one-dimensional (1D) ultrathin nanowires (10-35 nm) are stacked layer-by-layer and widely distributed in the three-dimensional (3D) porous membranes. The final morphology of the gelatin nano-nets, including nanowire diameter, area density and pore-width of the nano-nets, is highly dependent on the solution concentration, salt concentration, kinds of solvents, applied voltage, ambient temperature and relative humidity (RH). The occurrence of rapid phase separation on the splitting-film and the formation of hydrogen bond among gelatin molecules during electro-netting are proposed as the possible mechanisms for the formation of these spider-web-like nano-nets.
authors.affiliation: State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China.
authors.forename: Xianfeng
authors.initials: X
authors.lastname: Wang
authors.forename: Bin
authors.initials: B
authors.lastname: Ding
authors.forename: Jianyong
authors.initials: J
authors.lastname: Yu
authors.forename: Jianmao
authors.initials: J
authors.lastname: Yang
mesh_terms: D001672:Biocompatible Materials / Q000737:chemistry*; D005780:Gelatin / Q000737:chemistry*; D006813:Humidity; D006860:Hydrogen Bonding; D008422:Materials Testing; D008567:Membranes, Artificial; D053770:Nanowires / Q000737:chemistry*; D011108:Polymers / Q000737:chemistry*; D016062:Porosity; D012996:Solutions; D012997:Solvents; D013499:Surface Properties; D013696:Temperature
chemical_list: D001672:Biocompatible Materials; D008567:Membranes, Artificial; D011108:Polymers; D012996:Solutions; D012997:Solvents; D005780:Gelatin