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      Impact of 3-Aminopropyltriethoxysilane-Coated Iron Oxide Nanoparticles on Menaquinone-7 Production Using B-subtilis

      Ranmadugala, Dinali Niluka Achala; Ebrahiminezhad, Alireza; Manley-Harris, Merilyn; Ghasemi, Younes; Berenjian, Aydin
      DOI
       10.3390/nano7110350
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      Permanent link to Research Commons version
      https://hdl.handle.net/10289/15524
      Abstract
      One of the major issues associated with industrial production of menaquinone-7 (MK–7) is the low fermentation yield. In this study, we investigated the effect of iron oxide nanoparticles coated with 3–aminopropyltriethoxysilane (IONs@APTES) on the production of MK–7 using B. subtilis (ATCC 6633). Decoration of B. subtilis cells with IONs@APTES significantly enhanced both MK–7 production and yield. An approximately two-fold increase in MK–7 production (41 mg/L) was observed in the presence of 500 µg/mL IONs@APTES, as compared to MK–7 production using untreated bacteria (22 mg/L). This paper, therefore, illustrates the immense biotechnological potential of IONs@APTES in increasing MK–7 concentration using B. subtilis, and its future role in bioprocess engineering.
      Date
      2017-11-01
      Type
      Journal Article
      Publisher
      MDPI
      Rights
      © 2017. This work is licensed under a CC BY 4.0 license.
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      • Science and Engineering Papers [3124]
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