Design of a multifunctional nanohybrid system of the phytohormone gibberellic acid using an inorganic layered double-hydroxide material

Inas H. Hafez, Mohamed R. Berber, Keiji Minagawa, Takeshi Mori, Masami Tanaka

Research output: Contribution to journalArticle

15 Citations (Scopus)

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.

Original languageEnglish
Pages (from-to)10118-10123
Number of pages6
JournalJournal of Agricultural and Food Chemistry
Volume58
Issue number18
DOIs
Publication statusPublished - Sep 22 2010

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Plant Growth Regulators
hydroxides
gibberellic acid
plant hormones
Soil
Soils
hydroxide ion
Molecules
Ion Exchange
Hybrid materials
ion exchange
Biodegradation
Molecular Structure
biodegradation
soil solution
chemical structure
Molecular structure
Ion exchange
Dissolution
kinetics

All Science Journal Classification (ASJC) codes

  • Agricultural and Biological Sciences(all)
  • Chemistry(all)

Cite this

Design of a multifunctional nanohybrid system of the phytohormone gibberellic acid using an inorganic layered double-hydroxide material. / Hafez, Inas H.; Berber, Mohamed R.; Minagawa, Keiji; Mori, Takeshi; Tanaka, Masami.

In: Journal of Agricultural and Food Chemistry, Vol. 58, No. 18, 22.09.2010, p. 10118-10123.

Research output: Contribution to journalArticle

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