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Mössbauer spectroscopy study of magnetic iron oxide nanoclusters in a biocomposite based on poly(3-hydroxybutyrate) and chitosan

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Abstract

The structural, electronic, and magnetic properties of iron oxide nanoparticles encapsulated in biodegradable therapeutic systems based on polyhydroxybutyrate and chitosan have been studied by Mössbauer spectroscopy and X-ray diffraction. It has been shown that, in polymer matrices containing 4 and 8 wt % iron oxide, the latter exists in two different forms: as nanosized (d ≈ 7–8 nm) superparamagnetic clusters and “paramagnetic” Fe3+ ions. It has been demonstrated that cluster nonstoichiometric iron oxide has an inverse spinel structure intermediate between the Fe3O4 and γ-Fe2O3 polymorphs.

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Authors and Affiliations

  1. Semenov Institute of Chemical Physics, Russian Academy of Sciences, ul. Kosygina 4, Moscow, 119991, Russia

    V. E. Prusakov, Yu. V. Maksimov, A. L. Iordanskii, A. V. Bychkova, Yu. F. Krupyanskii & A. A. Berlin

  2. Ogarev Mordovia State University, ul. Bol’shevistskaya 68, Saransk, 430005, Mordovia, Russia

    K. N. Nishchev & A. V. Golubiev

  3. Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, ul. Kosygina 4, Moscow, 119991, Russia

    A. V. Bychkova

Authors
  1. V. E. Prusakov
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  2. Yu. V. Maksimov
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  3. K. N. Nishchev
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  4. A. V. Golubiev
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  5. A. L. Iordanskii
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  6. A. V. Bychkova
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  7. Yu. F. Krupyanskii
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  8. A. A. Berlin
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Correspondence to V. E. Prusakov.

Additional information

Original Russian Text © V.E. Prusakov, Yu.V. Maksimov, K.N. Nishchev, A.V. Golubiev, A.L. Iordanskii, A.V. Bychkova, Yu.F. Krupyanskii, A.A. Berlin, 2015, published in Doklady Akademii Nauk, 2015, Vol. 463, No. 5, pp. 563–565.

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Prusakov, V.E., Maksimov, Y.V., Nishchev, K.N. et al. Mössbauer spectroscopy study of magnetic iron oxide nanoclusters in a biocomposite based on poly(3-hydroxybutyrate) and chitosan. Dokl Phys Chem 463, 176–178 (2015). https://doi.org/10.1134/S0012501615080047

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  • DOI: https://doi.org/10.1134/S0012501615080047

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