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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">10.17586/2220-8054-2023-14-6-719-728</article-id><article-id custom-type="elpub" pub-id-type="custom">najo-170</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>Molecular dynamics simulation of the rearrangement of polyampholyte conformations on the surface of a charged oblate metal nanospheroid in a microwave electric field</article-title><trans-title-group xml:lang="ru"><trans-title>Молекулярно-динамическое моделирование перестройки конформаций полиамфолитов на поверхности заряженного сплюснутого металлического наносфероида в сверхвысокочастотном электрическом поле</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-7960-3482</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кручинин</surname><given-names>Н. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Kruchinin</surname><given-names>N. Yu.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Оренбург</p></bio><bio xml:lang="en"><p>Nikita Yu. Kruchinin</p><p>Orenburg</p></bio><email xlink:type="simple">kruchinin_56@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Оренбургский государственный университет, Центр лазерной и информационной биофизики</institution></aff><aff xml:lang="en"><institution>Orenburg State University, Center of Laser and Informational Biophysics</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>02</day><month>06</month><year>2025</year></pub-date><volume>14</volume><issue>6</issue><fpage>719</fpage><lpage>728</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Kruchinin N.Y., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Кручинин Н.Ю.</copyright-holder><copyright-holder xml:lang="en">Kruchinin N.Y.</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/170">https://nanojournal.ifmo.ru/jour/article/view/170</self-uri><abstract><p>Using molecular dynamics, the rearrangement of the conformational structure of polyampholytes on the surface of a gold oblate nanospheroid in an alternating electric field was studied depending on the value of its total charge. On the surface of the nanospheroid, at its high total charge and at small amplitude of the alternating electric field strength vector, polyampholyte loops stretched over the entire surface of the nanospheroid. With an increase in the amplitude of the electric field in the equatorial region of the nanospheroid, an annular polyampholytic fringe was formed, ordered by the types of links depending on the distance to the polarization axis of the nanoparticle. In the case of high simulation temperature, the shape of the annular fringe changed twice over a period: in one case, ordering according to the types of links along the polarization axis of the nanospheroid, and in the other case, perpendicular to it.</p></abstract><trans-abstract xml:lang="ru"><p>С использованием молекулярной динамики исследована перестройка конформационной структуры полиамфолитов на поверхности золотого сплюснутого наносфероида в переменном электрическом поле в зависимости от величины его полного заряда. На поверхности наносфероида при большом его полном заряде и при небольшой величине амплитуды вектора напряженности переменного электрического поля происходило вытягивание петель полиамфолита по всей поверхности наносфероида. При увеличении амплитуды электрического поля в экваториальной области наносфероида образовывалась кольцеобразная полиамфолитная опушка, упорядоченная по типам звеньев в зависимости от расстояния до оси поляризации наночастицы. В случае высокой температуры моделирования форма кольцеобразной опушки изменялась дважды за период: в одном случае упорядочиваясь по типам звеньев вдоль оси поляризации наносфероида, а в другом случае перпендикулярно ней.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>полиамфолит</kwd><kwd>сплюснутый металлический наносфероид</kwd><kwd>конформационные изменения</kwd><kwd>адсорбция</kwd><kwd>молекулярная динамика</kwd></kwd-group><kwd-group xml:lang="en"><kwd>polyampholyte</kwd><kwd>oblate metallic nanospheroid</kwd><kwd>conformational changes</kwd><kwd>adsorption</kwd><kwd>molecular dynamics</kwd></kwd-group><funding-group><funding-statement xml:lang="en">This work was supported by the Ministry of Science and Higher Education of the Russian Federation within the framework of project no. 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