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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">10.17586/2220-8054-2018-9-3-430-438</article-id><article-id custom-type="elpub" pub-id-type="custom">najo-878</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 MATERIAL SCIENCE</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>ХИМИЯ И МАТЕРИАЛОВЕДЕНИЕ</subject></subj-group></article-categories><title-group><article-title>Cytotoxicity analysis of gadolinium doped cerium oxide nanoparticles on human mesenchymal stem cells</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>Popov</surname><given-names>A. L.</given-names></name></name-alternatives><bio xml:lang="en"><p>Pushchino, Moscow region, 142290</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="western" xml:lang="en"><surname>Savintseva</surname><given-names>I. V.</given-names></name></name-alternatives><bio xml:lang="en"><p>Pushchino, Moscow region, 142290</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="western" xml:lang="en"><surname>Mysina</surname><given-names>E. A.</given-names></name></name-alternatives><bio xml:lang="en"><p>Pushchino, Moscow region, 142290</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="western" xml:lang="en"><surname>Shcherbakov</surname><given-names>A. B.</given-names></name></name-alternatives><bio xml:lang="en"><p>Kyiv D0368</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="western" xml:lang="en"><surname>Popova</surname><given-names>N. R.</given-names></name></name-alternatives><bio xml:lang="en"><p>Pushchino, Moscow region, 142290</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="western" xml:lang="en"><surname>Ivanova</surname><given-names>O. S.</given-names></name></name-alternatives><bio xml:lang="en"><p>Moscow 119991</p></bio><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="western" xml:lang="en"><surname>Kolmanovich</surname><given-names>D. D.</given-names></name></name-alternatives><bio xml:lang="en"><p>Nalchik, 360004</p></bio><xref ref-type="aff" rid="aff-4"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="western" xml:lang="en"><surname>Ivanov</surname><given-names>V. K.</given-names></name></name-alternatives><bio xml:lang="en"><p>Moscow 119991</p><p>Moscow 119991</p></bio><email xlink:type="simple">van@igic.ras.ru</email><xref ref-type="aff" rid="aff-5"/></contrib></contrib-group><aff xml:lang="en" id="aff-1"><institution>Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences</institution><country>Russian Federation</country></aff><aff xml:lang="en" id="aff-2"><institution>Zabolotny Institute of Microbiology and Virology, National Academy of Sciences of Ukraine</institution><country>Ukraine</country></aff><aff xml:lang="en" id="aff-3"><institution>Kurnakov Institute of General and Inorganic Chemistry of Russian Academy of Sciences</institution><country>Russian Federation</country></aff><aff xml:lang="en" id="aff-4"><institution>Kabardino-Balkarian State University</institution><country>Russian Federation</country></aff><aff xml:lang="en" id="aff-5"><institution>Kurnakov Institute of General and Inorganic Chemistry of Russian Academy of Sciences; Moscow Technological University, Institute of Fine Chemical Technologies</institution><country>Russian Federation</country></aff><pub-date pub-type="collection"><year>2018</year></pub-date><pub-date pub-type="epub"><day>14</day><month>08</month><year>2025</year></pub-date><volume>9</volume><issue>3</issue><fpage>430</fpage><lpage>438</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Popov A.L., Savintseva I.V., Mysina E.A., Shcherbakov A.B., Popova N.R., Ivanova O.S., Kolmanovich D.D., Ivanov V.K., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Popov A.L., Savintseva I.V., Mysina E.A., Shcherbakov A.B., Popova N.R., Ivanova O.S., Kolmanovich D.D., Ivanov V.K.</copyright-holder><copyright-holder xml:lang="en">Popov A.L., Savintseva I.V., Mysina E.A., Shcherbakov A.B., Popova N.R., Ivanova O.S., Kolmanovich D.D., Ivanov V.K.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" 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/878">https://nanojournal.ifmo.ru/jour/article/view/878</self-uri><abstract><p>A complex analysis of cytotoxicity was performed for a nanodispersed sol of cerium dioxide doped with gadolinium (Ce0.8Gd0.2O2−x) using a culture of mesenchymal stem cells. The absence of cyto- and genotoxicity over a wide range of concentrations (10−5 – 10−9 M) was demonstrated. At that, the highest concentration of Ce0.8Gd0.2O2−x nanoparticles (10−4 M) was found to slightly reduce the activity of intracellular dehydrogenase, yet not leading to the development of apoptosis and further cell death. The obtained results confirm a high degree of Ce0.8Gd0.2O2−x nanoparticle biocompatibility, which opens prospects for their safe application as a contrasting agent in the magnetic resonance tomography.</p></abstract><kwd-group xml:lang="en"><kwd>ceria</kwd><kwd>gadolinium</kwd><kwd>nanomaterials</kwd><kwd>cytotoxicity</kwd><kwd>mesenchymal stem cells</kwd></kwd-group><funding-group><funding-statement xml:lang="en">This research has been supported by the Russian Science Foundation (project 17-73-10417).</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">Khodke M.R., Joshi S.V. An investigative study on application of carbon nanotubes for strain sensing. Nanosystems: Phys., Chem., Math., 2016, 7 (4), P. 755–758.</mixed-citation><mixed-citation xml:lang="en">Khodke M.R., Joshi S.V. An investigative study on application of carbon nanotubes for strain sensing. 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