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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">10.17586/2220-8054-2025-16-1-22-29</article-id><article-id custom-type="elpub" pub-id-type="custom">najo-73</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>Peroxidase-like activity of photochromic PVP-stabilized tungsten oxide nanoparticles: assessment by independent chemiluminescent and colorimetric assays</article-title><trans-title-group xml:lang="ru"><trans-title>Пероксидазоподобная активность фотохромных наночастиц оксида вольфрама, стабилизированных ПВП: независимый анализ хемилюминесцентным и колориметрическим методами</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-9811-6241</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Попков</surname><given-names>M. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Popkov</surname><given-names>M. A.</given-names></name></name-alternatives><bio xml:lang="en"><p>Matvei A. Popkov</p><p>Leninsky, 31, Moscow, 119991</p></bio><email xlink:type="simple">mapopkov@igic.ras.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-3485-1842</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Шейченко</surname><given-names>Е. Д.</given-names></name><name name-style="western" xml:lang="en"><surname>Sheichenko</surname><given-names>E. D.</given-names></name></name-alternatives><bio xml:lang="en"><p>Ekaterina D. Sheichenko</p><p>Leninsky, 31, Moscow, 119991</p><p>Myasnitskaya, 20, Moscow, 101000</p></bio><email xlink:type="simple">edsheychenko@edu.hse.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-2725-8891</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Филиппова</surname><given-names>А. Д.</given-names></name><name name-style="western" xml:lang="en"><surname>Filippova</surname><given-names>A. D.</given-names></name></name-alternatives><bio xml:lang="en"><p>Arina D. Filippova</p><p>Leninsky, 31, Moscow, 119991</p></bio><email xlink:type="simple">arifilippova@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-0718-1911</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Тронев</surname><given-names>И. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Tronev</surname><given-names>I. V.</given-names></name></name-alternatives><bio xml:lang="en"><p>Ilya V. Tronev</p><p>Leninsky, 31, Moscow, 119991</p></bio><email xlink:type="simple">ivtronev@edu.hse.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0006-4139-1476</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Новоселова</surname><given-names>К. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Novoselova</surname><given-names>K. N.</given-names></name></name-alternatives><bio xml:lang="en"><p>Kristina N. Novoselova</p><p>Leninsky, 31, Moscow, 119991</p><p>Myasnitskaya, 20, Moscow, 101000</p></bio><email xlink:type="simple">knnovoselova@edu.hse.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0009-1645-5759</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Труфанова</surname><given-names>Э. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Trufanova</surname><given-names>E. A.</given-names></name></name-alternatives><bio xml:lang="en"><p>Evelina A. Trufanova</p><p>Leninsky, 31, Moscow, 119991</p><p>Myasnitskaya, 20, Moscow, 101000</p></bio><email xlink:type="simple">eatrufanova1@edu.hse.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0004-3560-4178</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Васильева</surname><given-names>Д. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Vasilyeva</surname><given-names>D. N.</given-names></name></name-alternatives><bio xml:lang="en"><p>Darya N. Vasilyeva</p><p>Leninsky, 31, Moscow, 119991</p><p>Myasnitskaya, 20, Moscow, 101000</p></bio><email xlink:type="simple">dnvasileva1@edu.hse.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0007-0738-4974</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Проценко</surname><given-names>М. Р.</given-names></name><name name-style="western" xml:lang="en"><surname>Protsenko</surname><given-names>M. R.</given-names></name></name-alternatives><bio xml:lang="en"><p>Maria R. Protsenko</p><p>Leninsky, 31, Moscow, 119991</p><p>Myasnitskaya, 20, Moscow, 101000</p></bio><email xlink:type="simple">mrprotsenko@edu.hse.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-5868-4746</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Созарукова</surname><given-names>М. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Sozarukova</surname><given-names>M. M.</given-names></name></name-alternatives><bio xml:lang="en"><p>Madina M. Sozarukova</p><p>Leninsky, 31, Moscow, 119991</p></bio><email xlink:type="simple">smadinam@bk.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-2378-7446</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Баранчиков</surname><given-names>А. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Baranchikov</surname><given-names>A. E.</given-names></name></name-alternatives><bio xml:lang="en"><p>Alexander E. Baranchikov</p><p>Leninsky, 31, Moscow, 119991</p><p>Myasnitskaya, 20, Moscow, 101000</p></bio><email xlink:type="simple">a.baranchikov@yandex.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-2343-2140</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Иванов</surname><given-names>В. К.</given-names></name><name name-style="western" xml:lang="en"><surname>Ivanov</surname><given-names>V. K.</given-names></name></name-alternatives><bio xml:lang="en"><p>Vladimir K. Ivanov</p><p>Leninsky, 31, Moscow, 119991</p><p>Myasnitskaya, 20, Moscow, 101000</p></bio><email xlink:type="simple">van@igic.ras.ru</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff xml:lang="en" id="aff-1"><institution>Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences</institution><country>Russian Federation</country></aff><aff xml:lang="en" id="aff-2"><institution>Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences; HSE University</institution><country>Russian Federation</country></aff><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>01</day><month>06</month><year>2025</year></pub-date><volume>16</volume><issue>1</issue><fpage>22</fpage><lpage>29</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Popkov M.A., Sheichenko E.D., Filippova A.D., Tronev I.V., Novoselova K.N., Trufanova E.A., Vasilyeva D.N., Protsenko M.R., Sozarukova M.M., Baranchikov A.E., Ivanov V.K., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Попков M.А., Шейченко Е.Д., Филиппова А.Д., Тронев И.В., Новоселова К.Н., Труфанова Э.А., Васильева Д.Н., Проценко М.Р., Созарукова М.М., Баранчиков А.Е., Иванов В.К.</copyright-holder><copyright-holder xml:lang="en">Popkov M.A., Sheichenko E.D., Filippova A.D., Tronev I.V., Novoselova K.N., Trufanova E.A., Vasilyeva D.N., Protsenko M.R., Sozarukova M.M., Baranchikov A.E., 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/73">https://nanojournal.ifmo.ru/jour/article/view/73</self-uri><abstract><p>In this work, peroxidase-like activity of ultrasmall tungsten oxide nanoparticles including those stabilized with polyvinylpyrrolidone (PVP) was assessed using two independent approaches: the colorimetric method, which is based on the analysis of 3,3’,5,5’-tetramethylbenzidine (TMB) oxidation, and the luminolenhanced chemiluminescence method. It was demonstrated that bare tungsten oxide nanoparticles effectively catalyze the decomposition of hydrogen peroxide. In turn, the PVP-stabilized nanoparticles possess lower catalytic activity, which can be attributed to a decrease in the number of available active centres on the nanoparticle surface.</p></abstract><trans-abstract xml:lang="ru"><p>В данной работе пероксидазоподобную активность ультрамелких наночастиц оксида вольфрама, в том числе стабилизированных поливинилпирролидоном (ПВП), оценивали с помощью двух независимых подходов: колориметрического метода, основанного на анализе окисления 3,3',5,5'-тетраметилбензидина (ТМБ), и метода хемилюминесценции с использованием люминола в качестве молекулы-зонда. Было показано, что наночастицы нестабилизированного оксида вольфрама эффективно катализируют разложение пероксида водорода. В свою очередь, наночастицы, стабилизированные ПВП, обладают меньшей каталитической активностью, что можно объяснить уменьшением количества доступных активных центров на поверхности наночастиц.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>наноматериалы</kwd><kwd>нанозимы</kwd><kwd>золи</kwd><kwd>фотохромные материалы</kwd><kwd>хемилюминесценция</kwd><kwd>ТМБ</kwd><kwd>пероксидазоподобная активность</kwd></kwd-group><kwd-group xml:lang="en"><kwd>nanomaterials</kwd><kwd>nanozymes</kwd><kwd>sols</kwd><kwd>photochromic materials</kwd><kwd>chemiluminescence</kwd><kwd>TMB</kwd><kwd>peroxidaselike activity</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Kang T., Kim Y.G., Kim D., Hyeon T. Inorganic nanoparticles with enzyme-mimetic activities for biomedical applications. Coord. Chem. 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