Intercalation of amino acids and oligopeptides into Zn–Al layered double hydroxide by coprecipitation reaction

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• 作者：Sumio Aisawa ; Shuji Sasaki ; Satoshi Takahashi ; Hidetoshi Hirahara ; Hirokazu Nakayama and Eiichi Narita
• 关键词：A. Inorganic compounds ; A. Organic compounds ; C. X-ray diffraction ; C. Infrared spectroscopy ; C. Raman spectroscopy
• 刊名：Journal of Physics and Chemistry of Solids
• 出版年：2006
• 出版时间：May-June 2006
• 年：2006
• 卷：67
• 期：5-6
• 页码：920-925
• 全文大小：247 K

文摘

The coprecipitation of amino acids and oligopeptides with the Zn–Al LDH was investigated using phenylalanine (Phe), phenylalanyl-phenylalanine (Phe-Phe), glycyl-phenylalanine (Gly–Phe), glycine (Gly), glycyl-glycine (Gly–Gly), glycyl-glycyl-glycine (Gly–Gly–Gly) and N-(N-γ-glutamyl-cysteinyl)-glycine (GSH) as guest species. The coprecipitation behavior of amino acids and oligopeptides was found to be influenced by the solution pH and the kind of their side chain groups, and reached the maximum at pH 8 or 9. The basal spacing, d₀₀₃, of the Phe, Phe-Phe and GSH/LDH was 1.81, 2.41 and 1.64 nm, supporting that guests were arranged vertical to the LDH basal layer. Acceding to the basal spacing of the Gly, Gly–Gly and Gly–Gly–Gly/LDH (d₀₀₃