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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">najo</journal-id><journal-title-group><journal-title xml:lang="en">Nanosystems: Physics, Chemistry, Mathematics</journal-title><trans-title-group xml:lang="ru"><trans-title>Наносистемы: физика, химия, математика</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2220-8054</issn><issn pub-type="epub">2305-7971</issn><publisher><publisher-name>Университет ИТМО</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.17586/2220-8054-2019-10-2-215-226</article-id><article-id custom-type="elpub" pub-id-type="custom">najo-647</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>CHEMISTRY AND MATERIALS SCIENCE</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>ХИМИЯ И НАУКА О МАТЕРИАЛАХ</subject></subj-group></article-categories><title-group><article-title>Electron microscopy of biogenic minerals: structure and sizes of uranium dioxide nanoparticles with Mn2+ impurities</article-title><trans-title-group xml:lang="ru"><trans-title></trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="western" xml:lang="en"><surname>Suvorova</surname><given-names>E. I.</given-names></name></name-alternatives><bio xml:lang="en"><p>Leninsky pr., 59, 19333 Moscow </p></bio><email xlink:type="simple">suvorova@crys.ras.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="en">A. V. Shubnikov Institute of Crystallography, Federal Scientific Research Centre “Crystallography and Photonics” of Russian Academy of Sciences<country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2019</year></pub-date><pub-date pub-type="epub"><day>12</day><month>08</month><year>2025</year></pub-date><volume>10</volume><issue>2</issue><fpage>215</fpage><lpage>226</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Suvorova E.I., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Suvorova E.I.</copyright-holder><copyright-holder xml:lang="en">Suvorova E.I.</copyright-holder><license license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://nanojournal.ifmo.ru/jour/article/view/647">https://nanojournal.ifmo.ru/jour/article/view/647</self-uri><abstract><p>Methodological aspects of the extraction of structural and chemical information from transmission electron microscopy (TEM) of uranium dioxide (UO2) biogenic nanoparticles are presented. Nanoparticles were formed via the bacterial reduction of water-soluble uranyl acetate with U (VI) in the presence of Mn2+ ions and cultures Shewanella oneidensis MR-1 in the medium. The particles of 1.2 – 3.5 nm in diameter and particle agglomerations were visualized in conventional TEM, high resolution TEM, scanning TEM modes. Their phase and chemical composition were investigated with electron diffraction, X-ray energy dispersive spectrometry and electron energy loss spectroscopy with high spatial resolution. Maintenance of the element balance helped to find the composition of the mixture of UO2 and Mn acetates. The interpretation of TEM data and modeling allowed to propose the mechanism for the suppression of UO2 particle growth and higher resistance to dissolution of smaller UO2 particles with adsorbed Mn acetate compared to the larger pure particles.</p></abstract><kwd-group xml:lang="en"><kwd>uranium dioxide nanoparticles</kwd><kwd>bacterial reduction</kwd><kwd>manganese impurity</kwd><kwd>transmission electron microscopy</kwd></kwd-group><funding-group xml:lang="en"><funding-statement>All samples were prepared at Ecole Polytechnique F ´ ed ´ erale de Lausanne (EPFL). The help of Prof. Philippe ´ Buffat in discussions of results is acknowledged. This work was also supported by the Ministry of Science and Higher Education of the Russian Federation.</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Gadd G.M. Microbial influence on metal mobility and application for bioremediation. Geoderma, 2004, 122, P. 109–119.</mixed-citation><mixed-citation xml:lang="en">Gadd G.M. Microbial influence on metal mobility and application for bioremediation. Geoderma, 2004, 122, P. 109–119.</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Newsome L., Morris K., et al. The stability of microbially reduced U(IV); impact of residual electron donor and sediment ageing. Chemical Geology, 2015, 409, P. 125–135.</mixed-citation><mixed-citation xml:lang="en">Newsome L., Morris K., et al. The stability of microbially reduced U(IV); impact of residual electron donor and sediment ageing. Chemical Geology, 2015, 409, P. 125–135.</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">Post J.E. Manganese oxide minerals: Crystal structures and economic and environmental significance. Proc. Natl. Acad. Sci. USA, 1999, 96, P. 3447–3454.</mixed-citation><mixed-citation xml:lang="en">Post J.E. Manganese oxide minerals: Crystal structures and economic and environmental significance. Proc. Natl. Acad. Sci. USA, 1999, 96, P. 3447–3454.</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">Taffarel S.R., Rubio J. Removal of Mn2+ from aqueous solution by manganese oxide coated zeolite. Minerals Engineering, 2010, 23, P. 1131–1138.</mixed-citation><mixed-citation xml:lang="en">Taffarel S.R., Rubio J. Removal of Mn2+ from aqueous solution by manganese oxide coated zeolite. Minerals Engineering, 2010, 23, P. 1131–1138.</mixed-citation></citation-alternatives></ref><ref id="cit5"><label>5</label><citation-alternatives><mixed-citation xml:lang="ru">Williams D.B., Carter C.B. Transmission Electron Microscopy. A Textbook for Materials Science (Second Ed.), Springer, 2009.</mixed-citation><mixed-citation xml:lang="en">Williams D.B., Carter C.B. Transmission Electron Microscopy. A Textbook for Materials Science (Second Ed.), Springer, 2009.</mixed-citation></citation-alternatives></ref><ref id="cit6"><label>6</label><citation-alternatives><mixed-citation xml:lang="ru">Middleton S.S., Bencheikh Latmani R., et al. Cometabolism of Cr(VI) by Shewanella oneidensis MR-1 Produces Cell-Associated Reduced Chromium and Inhibits Growth. Biotechnology and Bioengineering, 2003, 83, P. 627–637.</mixed-citation><mixed-citation xml:lang="en">Middleton S.S., Bencheikh Latmani R., et al. Cometabolism of Cr(VI) by Shewanella oneidensis MR-1 Produces Cell-Associated Reduced Chromium and Inhibits Growth. Biotechnology and Bioengineering, 2003, 83, P. 627–637.</mixed-citation></citation-alternatives></ref><ref id="cit7"><label>7</label><citation-alternatives><mixed-citation xml:lang="ru">Schofield E.J., Veeramani H., et al. Structure of Biogenic Uraninite Produced by Shewanella oneidensis Strain MR-1. Environ. Sci. Technol., 2008, 42, P. 7898–7904.</mixed-citation><mixed-citation xml:lang="en">Schofield E.J., Veeramani H., et al. Structure of Biogenic Uraninite Produced by Shewanella oneidensis Strain MR-1. Environ. Sci. Technol., 2008, 42, P. 7898–7904.</mixed-citation></citation-alternatives></ref><ref id="cit8"><label>8</label><citation-alternatives><mixed-citation xml:lang="ru">Veeramani H., Schofield E.J., et al. Effect of Mn(II) on the Structure and Reactivity of Biogenic Uraninite. Environ. Sci. Technol., 2009, 43, P. 6541–6547.</mixed-citation><mixed-citation xml:lang="en">Veeramani H., Schofield E.J., et al. Effect of Mn(II) on the Structure and Reactivity of Biogenic Uraninite. Environ. Sci. Technol., 2009, 43, P. 6541–6547.</mixed-citation></citation-alternatives></ref><ref id="cit9"><label>9</label><citation-alternatives><mixed-citation xml:lang="ru">Veeramani H., Alessi D.S., et al. Products of abiotic U(VI) reduction by biogenic magnetite and vivianite. Geochimica et Cosmochimica Acta, 2011, 75, P. 2512–2528.</mixed-citation><mixed-citation xml:lang="en">Veeramani H., Alessi D.S., et al. Products of abiotic U(VI) reduction by biogenic magnetite and vivianite. Geochimica et Cosmochimica Acta, 2011, 75, P. 2512–2528.</mixed-citation></citation-alternatives></ref><ref id="cit10"><label>10</label><citation-alternatives><mixed-citation xml:lang="ru">Stadelmann P. JEMS (Java Electron Microscopy Software); software available at URL: http://www.jems-saas.ch/.</mixed-citation><mixed-citation xml:lang="en">Stadelmann P. JEMS (Java Electron Microscopy Software); software available at URL: http://www.jems-saas.ch/.</mixed-citation></citation-alternatives></ref><ref id="cit11"><label>11</label><citation-alternatives><mixed-citation xml:lang="ru">Wasserstein B. Ages of uraninites by a new method. Nature, 1954, 174, P. 1004–1005.</mixed-citation><mixed-citation xml:lang="en">Wasserstein B. Ages of uraninites by a new method. Nature, 1954, 174, P. 1004–1005.</mixed-citation></citation-alternatives></ref><ref id="cit12"><label>12</label><citation-alternatives><mixed-citation xml:lang="ru">Rundle R.E., Baenziger N.C., et al. The Structures of Carbides, Nitrides and Oxides of Uranium. J. American Chemical Society, 1948, 70, P. 99–105.</mixed-citation><mixed-citation xml:lang="en">Rundle R.E., Baenziger N.C., et al. The Structures of Carbides, Nitrides and Oxides of Uranium. J. American Chemical Society, 1948, 70, P. 99–105.</mixed-citation></citation-alternatives></ref><ref id="cit13"><label>13</label><citation-alternatives><mixed-citation xml:lang="ru">Loopstra B.O., Taylor J.C., Waugh A.B. Neutron powder profile studies of the gamma uranium trioxide phases. Journal of Solid State Chemistry, 1977, 20, P. 9–19.</mixed-citation><mixed-citation xml:lang="en">Loopstra B.O., Taylor J.C., Waugh A.B. Neutron powder profile studies of the gamma uranium trioxide phases. Journal of Solid State Chemistry, 1977, 20, P. 9–19.</mixed-citation></citation-alternatives></ref><ref id="cit14"><label>14</label><citation-alternatives><mixed-citation xml:lang="ru">Siegel S. The crystal structure of trigonal U3O8. Acta Cryst., 1955, 8, P. 617–619.</mixed-citation><mixed-citation xml:lang="en">Siegel S. The crystal structure of trigonal U3O8. Acta Cryst., 1955, 8, P. 617–619.</mixed-citation></citation-alternatives></ref><ref id="cit15"><label>15</label><citation-alternatives><mixed-citation xml:lang="ru">Andresen A.F. The structure of U3O8 determined by neutron diffraction. Acta Cryst., 1958, 11, P. 612–614.</mixed-citation><mixed-citation xml:lang="en">Andresen A.F. The structure of U3O8 determined by neutron diffraction. Acta Cryst., 1958, 11, P. 612–614.</mixed-citation></citation-alternatives></ref><ref id="cit16"><label>16</label><citation-alternatives><mixed-citation xml:lang="ru">Cooper R.I., Willis B.T.M. Refinement of the structure of beta-(U4O9). Acta Cryst. A, 2004, 60, P. 322–325.</mixed-citation><mixed-citation xml:lang="en">Cooper R.I., Willis B.T.M. Refinement of the structure of beta-(U4O9). Acta Cryst. A, 2004, 60, P. 322–325.</mixed-citation></citation-alternatives></ref><ref id="cit17"><label>17</label><citation-alternatives><mixed-citation xml:lang="ru">Levi G.R. The crystal structure of MnO. Mathematiche e Naturali, 1924, 57, P. 619–624.</mixed-citation><mixed-citation xml:lang="en">Levi G.R. The crystal structure of MnO. Mathematiche e Naturali, 1924, 57, P. 619–624.</mixed-citation></citation-alternatives></ref><ref id="cit18"><label>18</label><citation-alternatives><mixed-citation xml:lang="ru">Radler M.J., Cohen J.B., et al. The defect structures of Mn1−xO. Journal of Physics and Chemistry of Solids, 1992, 53, P. 141–154.</mixed-citation><mixed-citation xml:lang="en">Radler M.J., Cohen J.B., et al. The defect structures of Mn1−xO. Journal of Physics and Chemistry of Solids, 1992, 53, P. 141–154.</mixed-citation></citation-alternatives></ref><ref id="cit19"><label>19</label><citation-alternatives><mixed-citation xml:lang="ru">Min N.K., Yong-Il K., et al. New crystal structure: synthesis and characterization of hexagonal wurtzite MnO. Journal of the American Chemical Society, 2012, 134, P. 8392–8395.</mixed-citation><mixed-citation xml:lang="en">Min N.K., Yong-Il K., et al. New crystal structure: synthesis and characterization of hexagonal wurtzite MnO. Journal of the American Chemical Society, 2012, 134, P. 8392–8395.</mixed-citation></citation-alternatives></ref><ref id="cit20"><label>20</label><citation-alternatives><mixed-citation xml:lang="ru">Klein H., David J. The quality of precession electron diffraction data is higher than necessary for structure solution of unknown crystalline phases. Acta Cryst. A, 2011, 67, P. 297–302.</mixed-citation><mixed-citation xml:lang="en">Klein H., David J. The quality of precession electron diffraction data is higher than necessary for structure solution of unknown crystalline phases. Acta Cryst. A, 2011, 67, P. 297–302.</mixed-citation></citation-alternatives></ref><ref id="cit21"><label>21</label><citation-alternatives><mixed-citation xml:lang="ru">Baron V., Gutzmer J., Tellgren, R. The influence of iron substitution on the magnetic properties of hausmannite, Mn(2+)(Mn, Fe)2(3+)O4. American Mineralogist, 1998, 83, P. 786–793.</mixed-citation><mixed-citation xml:lang="en">Baron V., Gutzmer J., Tellgren, R. The influence of iron substitution on the magnetic properties of hausmannite, Mn(2+)(Mn, Fe)2(3+)O4. American Mineralogist, 1998, 83, P. 786–793.</mixed-citation></citation-alternatives></ref><ref id="cit22"><label>22</label><citation-alternatives><mixed-citation xml:lang="ru">Norrestam R., Alpha-manganese (III) oxide – a C-type sesquioxide of orthorhombic symmetry. Golden Book of Phase Transitions, Wroclaw 2002, 1, P. 1–123.</mixed-citation><mixed-citation xml:lang="en">Norrestam R., Alpha-manganese (III) oxide – a C-type sesquioxide of orthorhombic symmetry. Golden Book of Phase Transitions, Wroclaw 2002, 1, P. 1–123.</mixed-citation></citation-alternatives></ref><ref id="cit23"><label>23</label><citation-alternatives><mixed-citation xml:lang="ru">Rogers D.B., Shannon R.D., Sleight A.W., Gillson J.L. Crystal chemistry of metal dioxides with rutile-related structures. Inorganic Chemistry, 1969, 8, P. 841–849.</mixed-citation><mixed-citation xml:lang="en">Rogers D.B., Shannon R.D., Sleight A.W., Gillson J.L. Crystal chemistry of metal dioxides with rutile-related structures. Inorganic Chemistry, 1969, 8, P. 841–849.</mixed-citation></citation-alternatives></ref><ref id="cit24"><label>24</label><citation-alternatives><mixed-citation xml:lang="ru">Nuss J., Pfeiffer S., van Smaalen S., Jansen M. Structures of incommensurate and commensurate composite crystals Rb(x)MnO2 (x = 1:3711, 1:3636). Acta Cryst. B, 2010, 66, P. 27–33.</mixed-citation><mixed-citation xml:lang="en">Nuss J., Pfeiffer S., van Smaalen S., Jansen M. Structures of incommensurate and commensurate composite crystals Rb(x)MnO2 (x = 1:3711, 1:3636). Acta Cryst. B, 2010, 66, P. 27–33.</mixed-citation></citation-alternatives></ref><ref id="cit25"><label>25</label><citation-alternatives><mixed-citation xml:lang="ru">Post J.E., Heaney P.J. Neutron and synchrotron X-ray diffraction study of the structures and dehydration behaviors of ramsdellite and “groutellite”. American Mineralogist, 2004, 89, P. 969–975.</mixed-citation><mixed-citation xml:lang="en">Post J.E., Heaney P.J. Neutron and synchrotron X-ray diffraction study of the structures and dehydration behaviors of ramsdellite and “groutellite”. American Mineralogist, 2004, 89, P. 969–975.</mixed-citation></citation-alternatives></ref><ref id="cit26"><label>26</label><citation-alternatives><mixed-citation xml:lang="ru">Fredrickson J.K., Zachara J.M., et al. Influence of Mn oxides on the reduction of uranium(VI) by the metal-reducing bacterium Shewanella putrefaciens. Geochimica et Cosmochimica Acta, 2002, 66, P. 3247–3262.</mixed-citation><mixed-citation xml:lang="en">Fredrickson J.K., Zachara J.M., et al. Influence of Mn oxides on the reduction of uranium(VI) by the metal-reducing bacterium Shewanella putrefaciens. Geochimica et Cosmochimica Acta, 2002, 66, P. 3247–3262.</mixed-citation></citation-alternatives></ref><ref id="cit27"><label>27</label><citation-alternatives><mixed-citation xml:lang="ru">Saratovsky I., Wightman P.G., et al. Manganese Oxides: Parallels between Abiotic and Biotic Structures. J. Am. Chem. Soc., 2006, 128, P. 11188–11198.</mixed-citation><mixed-citation xml:lang="en">Saratovsky I., Wightman P.G., et al. Manganese Oxides: Parallels between Abiotic and Biotic Structures. J. Am. Chem. Soc., 2006, 128, P. 11188–11198.</mixed-citation></citation-alternatives></ref><ref id="cit28"><label>28</label><citation-alternatives><mixed-citation xml:lang="ru">Bertaut E.F., Duc T.Q., et al. Crystal Structure of Manganese Acetate Tetrahydrate. Acta Cryst. B, 1974, 30, P. 2234–2236.</mixed-citation><mixed-citation xml:lang="en">Bertaut E.F., Duc T.Q., et al. Crystal Structure of Manganese Acetate Tetrahydrate. Acta Cryst. B, 1974, 30, P. 2234–2236.</mixed-citation></citation-alternatives></ref><ref id="cit29"><label>29</label><citation-alternatives><mixed-citation xml:lang="ru">Cheng C.-Y., Wang S.L. Structure of manganese acetate dihydrate. Acta Cryst. C, 1991, 47 (8), P. 1734–1736.</mixed-citation><mixed-citation xml:lang="en">Cheng C.-Y., Wang S.L. Structure of manganese acetate dihydrate. Acta Cryst. C, 1991, 47 (8), P. 1734–1736.</mixed-citation></citation-alternatives></ref><ref id="cit30"><label>30</label><citation-alternatives><mixed-citation xml:lang="ru">Francis A.J., Dodge C.J., et al. XPS and XANES Studies of Uranium Reduction by Closfridium sp. Environ. Sci. Technol., 1994, 28, P. 636–639.</mixed-citation><mixed-citation xml:lang="en">Francis A.J., Dodge C.J., et al. XPS and XANES Studies of Uranium Reduction by Closfridium sp. Environ. Sci. Technol., 1994, 28, P. 636–639.</mixed-citation></citation-alternatives></ref><ref id="cit31"><label>31</label><citation-alternatives><mixed-citation xml:lang="ru">Martin J.D., Hess R.F. β-Mn(O2CMe)2: solvothermal synthesis and crystal structure of an unprecedented three-dimensional manganese (II) network. J. Chem. Soc. Commun., 1996, 21, P. 2419–2420.</mixed-citation><mixed-citation xml:lang="en">Martin J.D., Hess R.F. β-Mn(O2CMe)2: solvothermal synthesis and crystal structure of an unprecedented three-dimensional manganese (II) network. J. Chem. Soc. Commun., 1996, 21, P. 2419–2420.</mixed-citation></citation-alternatives></ref><ref id="cit32"><label>32</label><citation-alternatives><mixed-citation xml:lang="ru">Lanovetskiy S.V., Poylov V.Z., Stepanov A.V. Physicochemical Fundamentals of Obtaining High Purity Manganese (II) Acetate Tetrahydrate. Chemistry for Sustainable Development, 2012, 20, P. 173–179.</mixed-citation><mixed-citation xml:lang="en">Lanovetskiy S.V., Poylov V.Z., Stepanov A.V. Physicochemical Fundamentals of Obtaining High Purity Manganese (II) Acetate Tetrahydrate. Chemistry for Sustainable Development, 2012, 20, P. 173–179.</mixed-citation></citation-alternatives></ref><ref id="cit33"><label>33</label><citation-alternatives><mixed-citation xml:lang="ru">Linke W.F. Solubilities, Inorganic and Metal Organic Compounds: A Compilation of Solubility Data from the Periodical Literature, Band 2, Van Nostrand, 1965.</mixed-citation><mixed-citation xml:lang="en">Linke W.F. Solubilities, Inorganic and Metal Organic Compounds: A Compilation of Solubility Data from the Periodical Literature, Band 2, Van Nostrand, 1965.</mixed-citation></citation-alternatives></ref><ref id="cit34"><label>34</label><citation-alternatives><mixed-citation xml:lang="ru">Wyckoff R.W.G. Pyrochroite. Crystal Structures 1, 2nd edition. Interscience Publishers, New York, 1963, P. 239–444.</mixed-citation><mixed-citation xml:lang="en">Wyckoff R.W.G. Pyrochroite. Crystal Structures 1, 2nd edition. Interscience Publishers, New York, 1963, P. 239–444.</mixed-citation></citation-alternatives></ref><ref id="cit35"><label>35</label><citation-alternatives><mixed-citation xml:lang="ru">Taffarel S.R., Rubio J. Removal of Mn2+ from aqueous solution by manganese oxide coated zeolite. Minerals Engineering, 2010, 23, P. 1131–1138.</mixed-citation><mixed-citation xml:lang="en">Taffarel S.R., Rubio J. Removal of Mn2+ from aqueous solution by manganese oxide coated zeolite. Minerals Engineering, 2010, 23, P. 1131–1138.</mixed-citation></citation-alternatives></ref><ref id="cit36"><label>36</label><citation-alternatives><mixed-citation xml:lang="ru">Buck E.C., Fortner J.A. Detecting low levels of transuranics with electron energy loss spectroscopy. Ultramicroscopy, 1997, 67, P. 69–75.</mixed-citation><mixed-citation xml:lang="en">Buck E.C., Fortner J.A. Detecting low levels of transuranics with electron energy loss spectroscopy. Ultramicroscopy, 1997, 67, P. 69–75.</mixed-citation></citation-alternatives></ref><ref id="cit37"><label>37</label><citation-alternatives><mixed-citation xml:lang="ru">Rice S.B., Bales H.H., Roth J.R., Whiteside A.L. Empirical Identification of Uranium Oxides and Fluorides Using Electron Energy-loss Spectroscopy in the Transmission Electron. Microscope. Microsc. Microanal., 1999, 5, P. 437–444.</mixed-citation><mixed-citation xml:lang="en">Rice S.B., Bales H.H., Roth J.R., Whiteside A.L. Empirical Identification of Uranium Oxides and Fluorides Using Electron Energy-loss Spectroscopy in the Transmission Electron. Microscope. Microsc. Microanal., 1999, 5, P. 437–444.</mixed-citation></citation-alternatives></ref><ref id="cit38"><label>38</label><citation-alternatives><mixed-citation xml:lang="ru">Vorokh A.S. Scherrer formula: estimation of error in determining small nanoparticle size. Nanosyst. Phys., Chem., Math., 2018, 9 (3), P. 364–369.</mixed-citation><mixed-citation xml:lang="en">Vorokh A.S. Scherrer formula: estimation of error in determining small nanoparticle size. Nanosyst. Phys., Chem., Math., 2018, 9 (3), P. 364–369.</mixed-citation></citation-alternatives></ref><ref id="cit39"><label>39</label><citation-alternatives><mixed-citation xml:lang="ru">Burgos W.D., McDonough J.T., et al. Characterization of uraninite nanoparticles produced by Shewanella oneidensis MR-1. Geochimica et Cosmochimica Acta, 2008, 72, P. 4901–4915.</mixed-citation><mixed-citation xml:lang="en">Burgos W.D., McDonough J.T., et al. Characterization of uraninite nanoparticles produced by Shewanella oneidensis MR-1. Geochimica et Cosmochimica Acta, 2008, 72, P. 4901–4915.</mixed-citation></citation-alternatives></ref></ref-list><fn-group><fn fn-type="conflict"><p>The authors declare that there are no conflicts of interest present.</p></fn></fn-group></back></article>
