Indian Journal of Microbiology

, Volume 59, Issue 1, pp 105–108 | Cite as

Copper Ferrite Magnetic Nanoparticles for the Immobilization of Enzyme

  • Sachin V. Otari
  • Sanjay K. S. Patel
  • Sang-Yong Kim
  • Jung Rim Haw
  • Vipin C. Kalia
  • In-Won KimEmail author
  • Jung-Kul LeeEmail author
Short Communications


In this study, novel, hollow superparamagnetic copper ferrite (CuFe2O4) nanoparticles (NPs) were synthesized by a low-temperature hydrothermal method. The hollow magnetic spheres were characterized by field emission scanning electron microscopy and high resolution transmission electron microscopy to confirm their morphology and size. The hollow NPs were demonstrated as the support for biological materials by the immobilization of Thermomyces lanuginosus lipase on the inner and outer surfaces of the hollow spheres. The immobilization of the enzyme was confirmed by Fourier Transform Infra-red spectroscopy and confocal laser scanning microscopy. The immobilized enzyme was shown to have an immobilization efficiency of 84.5%, with approximately 176 mg g−1 of enzyme loading, for the hollow-NPs support. The immobilized enzyme exhibited high storage and temperature stability. The reusability of the immobilized lipase was more than 80% after 10 cycles of repeated use.


Immobilization Hollow nanosphere Lipase Magnetic nanoparticles Storage stability 



This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT and Future Planning (NRF-2018H1D3A2001746, 2015R1D1A1A01061279, 2015R1D1A1A01061227, 2013M3A6A8073184). This work was supported by the Energy Efficiency & Resources Core Technology Program of the Korea Institute of Energy Technology Evaluation and Planning (KETEP), granted financial resource from the Ministry of Trade, Industry and Energy, Republic of Korea (20153030091450). This paper was written as part of Konkuk University’s research support program for its faculty on sabbatical leave in 2017.


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Copyright information

© Association of Microbiologists of India 2018

Authors and Affiliations

  • Sachin V. Otari
    • 1
  • Sanjay K. S. Patel
    • 1
  • Sang-Yong Kim
    • 2
  • Jung Rim Haw
    • 1
  • Vipin C. Kalia
    • 1
  • In-Won Kim
    • 1
    Email author
  • Jung-Kul Lee
    • 1
    Email author
  1. 1.Division of Chemical EngineeringKonkuk UniversitySeoulRepublic of Korea
  2. 2.Department of Food Science and BiotechnologyShin-Ansan UniversityAnsanRepublic of Korea

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