title: Aqueous counter collision using paired water jets as a novel means of preparing bio-nanofibers.
abstract: This study involved a detailed investigation of a novel approach to reducing naturally occurring cellulose fibers into nanofibers solely by the use of aqueous counter collision (ACC) without any chemical modification. In this process, equivalent aqueous suspensions of cellulose are ejected from dual nozzles and collide at high speed and pressure. Even a few repetitions of the collision process are sufficient to produce nano-sized fibers dispersed in water. This work compared the ACC nano-pulverization of stable Iβ-rich and meta-stable Iα-rich cellulose samples. The ACC method is applicable to various kinds of polymeric materials with hierarchical structures, either natural or synthetic, as a means of preparing aqueous dispersions of nano-sized structures.
authors.affiliation: Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, 6-10-1, Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan. Electronic address: tekondo@agr.kyushu-u.ac.jp.
authors.forename: Tetsuo
authors.initials: T
authors.lastname: Kondo
authors.affiliation: Faculty of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu-shi, Tokyo 183-8509, Japan.
authors.forename: Ryota
authors.initials: R
authors.lastname: Kose
authors.affiliation: Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, 6-10-1, Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan. Electronic address: biomaterial-design@hotmail.co.jp.
authors.forename: Hiroki
authors.initials: H
authors.lastname: Naito
authors.affiliation: Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, 6-10-1, Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan. Electronic address: wakako027@gmail.com.
authors.forename: Wakako
authors.initials: W
authors.lastname: Kasai
mesh_terms: D000818:Animals; D002482:Cellulose / Q000737:chemistry*; D004867:Equipment Design; D041822:Gluconacetobacter xylinus / Q000737:chemistry; D057139:Nanofibers / Q000737:chemistry*; D036103:Nanotechnology / Q000295:instrumentation / Q000379:methods*; D012212:Rheology / Q000379:methods; D017550:Spectroscopy, Fourier Transform Infrared; D013535:Suspensions / Q000737:chemistry; D014561:Urochordata / Q000737:chemistry; D014783:Viscosity; D014867:Water; D014934:Wood; D014961:X-Ray Diffraction
chemical_list: D013535:Suspensions; D014867:Water; D002482:Cellulose
keywords: Aqueous counter collision; Cellulose; Hierarchical structure; Nanofiber; Top-down process