title: Design of a multifunctional nanohybrid system of the phytohormone gibberellic acid using an inorganic layered double-hydroxide material.
abstract: To offer a multifunctional and applicable system of the high-value biotechnological phytohormone gibberellic acid (GA), a nanohybrid system of GA using the inorganic Mg-Al layered double-hydroxide material (LDH) was formulated. The ion-exchange technique of LDH was applied to synthesize the GA-LDH hybrid. The hybrid structure of GA-LDH was confirmed by different spectroscopic techniques. The nanohybrid size was described by SEM to be ∼0.1 μm. The GA-LDH nanohybrid structure was the key parameter that controlled GA properties. The layered molecular structure of LDH limited the interaction of GA molecules in two-dimensional directions. Accordingly, GA molecules did not crystallize and were released in an amorphous form suitable for dissolution. At various simulated soil solutions, the nanohybrids showed a sustained release process following Higuchi kinetics. The biodegradation process of the intercalated GA showed an extended period of soil preservation as well as a slow rate of degradation.
authors: Institute of Technology and Science, The University of Tokushima, Tokushima 770-8506, Japan.
authors: Inas H
authors: IH
authors: Hafez
authors: Mohamed R
authors: MR
authors: Berber
authors: Keiji
authors: K
authors: Minagawa
authors: Takeshi
authors: T
authors: Mori
authors: Masami
authors: M
authors: Tanaka
mesh_terms: D016573:Agrochemicals / Q000737:chemistry; D000536:Aluminum Hydroxide / Q000737:chemistry*; D005875:Gibberellins / Q000737:chemistry*; D008276:Magnesium Hydroxide / Q000737:chemistry*; D053758:Nanoparticles / Q000737:chemistry* / Q000648:ultrastructure; D036103:Nanotechnology; D010937:Plant Growth Regulators / Q000737:chemistry*; D012995:Solubility
chemical_list: D016573:Agrochemicals; D005875:Gibberellins; D010937:Plant Growth Regulators; D000536:Aluminum Hydroxide; C007842:gibberellic acid; D008276:Magnesium Hydroxide