title: Dish-like drying patterns of the water-soluble gelatin sheet wetted by an aqueous droplet.
abstract: Drying dissipative patterns of the water-soluble gelatin sheet wetted by an aqueous droplet were observed as a function of time elapsed. The arrayed clusters of dishes formed at the broad ring area and grew outward toward multiple arrays with time. The drying patterns formed by the cooperative contribution of wetting, swelling, dissolving, evaporative, convectional, sedimentary and solidifying processes. Drying patterns were studied also for aqueous ethanol, aqueous NaCl solutions and dispersions of colloidal silica and poly(methyl methacrylate) spheres. The dish patterns were observed for the water-soluble substrates, for the first time, in this work.
authors.affiliation: Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, Yanagido 1-1, Gifu 501-1193, Japan.
authors.forename: Akira
authors.initials: A
authors.lastname: Tsuchida
authors.affiliation: Institute for Colloidal Organization, Hatoyama 3-1-112, Uji, Kyoto 611-0012, Japan. Electronic address: okubotsu@ybb.ne.jp.
authors.forename: Tsuneo
authors.initials: T
authors.lastname: Okubo
mesh_terms: D003102:Colloids / Q000737:chemistry; D003890:Desiccation; D000431:Ethanol / Q000737:chemistry; D005780:Gelatin / Q000737:chemistry*; D019904:Polymethyl Methacrylate / Q000737:chemistry; D012822:Silicon Dioxide / Q000737:chemistry; D012965:Sodium Chloride / Q000737:chemistry; D012995:Solubility; D013499:Surface Properties; D013997:Time Factors; D014867:Water / Q000737:chemistry*; D017155:Wettability
chemical_list: D003102:Colloids; D014867:Water; D000431:Ethanol; D012965:Sodium Chloride; D012822:Silicon Dioxide; D005780:Gelatin; D019904:Polymethyl Methacrylate
keywords: Broad ring; Dish pattern; Drying pattern; Gelatin sheet; Water-soluble substrate