Solvothermal Synthesis of Functional Magnetic Nanoparticles for Biocatalyst

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• 作者：Huaqing Shen (1)
  Jianxuan Hou (1)
  Zexin Gao (1)
  Biqiang Chen (1)
  Tianwei Tan (1)
  
• 关键词：Solvothermal method ; Magnetic nanoparticles ; Biocatalysis ; Vitamin A palmitate
• 刊名：Applied Biochemistry and Biotechnology
• 出版年：2014
• 出版时间：August 2014
• 年：2014
• 卷：173
• 期：8
• 页码：2279-2286
• 全文大小：542 KB
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• 作者单位：Huaqing Shen (1)
  Jianxuan Hou (1)
  Zexin Gao (1)
  Biqiang Chen (1)
  Tianwei Tan (1)
  
  1. Beijing Key Lab of Bioprocess, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, 100029, People’s Republic of China
  
• ISSN：1559-0291

文摘

A facile and simple one-step solvothermal method has been developed to synthesize polyethyleneimine (PEI)-modified magnetic nanoparticles. Characterization of morphology, surface charges, crystal structure, and magnetic property confirmed the efficiency of this facile synthesis route. Lipase immobilized on the PEI-modified magnetic nanoparticles was used to synthesize vitamin A palmitate from vitamin A acetate and palmitic acid. The reuse of immobilized lipase can be extended to eight times by removing water during esterification with a conversion rate above 80?% for 12?h.