Preparation of cobalt nanoparticles from polymorphic bacterial templates: A novel platform for biocatalysis

Nanoparticles have gathered significant research attention as materials for enzyme immobilization due to their advantageous properties such as low diffusion rates, ease of manipulation, and large surface areas. Here, polymorphic cobalt nanoparticles of varied sizes and shapes were prepared using Mic...

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Bibliographic Details
Published in:International journal of biological macromolecules 2015-11, Vol.81, p.747-753
Main Authors: Jang, Eunjin, Shim, Hyun-Woo, Ryu, Bum Han, An, Deu Rae, Yoo, Wan Ki, Kim, Kyeong Kyu, Kim, Dong-Wan, Kim, T. Doohun
Format: Article
Language:English
Subjects:
Adsorption
Bacteria - chemistry
Biocatalysis
Biocatalysts
Carboxylesterase - chemistry
Cobalt - chemistry
Cobalt oxide nanoparticles
Enzyme immobilization
Enzymes, Immobilized - chemistry
Lipase - chemistry
Metal Nanoparticles - chemistry
Metal Nanoparticles - ultrastructure
Oxides
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Summary:Nanoparticles have gathered significant research attention as materials for enzyme immobilization due to their advantageous properties such as low diffusion rates, ease of manipulation, and large surface areas. Here, polymorphic cobalt nanoparticles of varied sizes and shapes were prepared using Micrococcus lylae, Bacillus subtilis, Escherichia coli, Paracoccus sp., and Haloarcula vallismortis as bacterial templates. Furthermore, nine lipases/carboxylesterases were successfully immobilized on these cobalt nanoparticles. Especially, immobilized forms of Est-Y29, LmH, and Sm23 were characterized in more detail for potential industrial applications. Immobilization of enzymes onto cobalt oxide nanoparticles prepared from polymorphic bacterial templates may have potential for efficient hydrolysis on an industrial-scale, with several advantages such as high retention of enzymatic activity, increased stability, and strong reusability.
ISSN:0141-8130
1879-0003
DOI:10.1016/j.ijbiomac.2015.09.009