title: Biomimetic superhydrophobic surfaces by combining mussel-inspired adhesion with lotus-inspired coating.
abstract: Superhydrophobic surfaces on PET textiles were fabricated by combined bioinspiration from the strong adhesion of marine mussels and the two-scale structure of lotus leaves under mild conditions. Dopamine can spontaneously polymerize in alkaline aqueous solution to form a thin adhesive layer of polydopamine (PDA) wrapping on the micro-scale fibers. The as-formed thin PDA layer worked as a reactive template to generate PDA nanoparticles decorated on the fiber surfaces, imparting the textiles with excellent UV-shielding properties as well as a hierarchical structure similar to the morphology of the lotus leaf. After further modification with perfluorodecyl trichlorosilane, the textiles turned superhydrophobic with a water contact angle higher than 150°. Due to the strong adhesion of PDA to a wide range of materials, the present strategy may be extendable to fabrication of superhydrophobic surfaces on a variety of other substrates.
authors.affiliation: College of Resource and Environment, Shaanxi University of Science and Technology, Xi'an 710021, People's Republic of China. Shaanxi Research Institute of Agricultural Products Processing Technology, Shaanxi University of Science and Technology, Xi'an 710021, People's Republic of China.
authors.forename: Chao-Hua
authors.initials: CH
authors.lastname: Xue
authors.forename: Xue-Qing
authors.initials: XQ
authors.lastname: Ji
authors.forename: Jing
authors.initials: J
authors.lastname: Zhang
authors.forename: Jian-Zhong
authors.initials: JZ
authors.lastname: Ma
authors.forename: Shun-Tian
authors.initials: ST
authors.lastname: Jia
mesh_terms: D000269:Adhesives / Q000737:chemistry*; D000818:Animals; D040761:Biomimetic Materials / Q000737:chemistry*; D049872:Bivalvia; D057927:Hydrophobic and Hydrophilic Interactions; D007211:Indoles; D000070116:Lotus; D011108:Polymers; D013784:Textiles
chemical_list: D000269:Adhesives; D007211:Indoles; D011108:Polymers; C568283:polydopamine