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<article 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" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Himičeskaâ fizika</journal-id><journal-title-group><journal-title xml:lang="en">Himičeskaâ fizika</journal-title><trans-title-group xml:lang="ru"><trans-title>Химическая физика</trans-title></trans-title-group></journal-title-group><issn publication-format="print">0207-401X</issn><publisher><publisher-name xml:lang="en">The Russian Academy of Sciences</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">686514</article-id><article-id pub-id-type="doi">10.31857/S0207401X25060049</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Kinetics and mechanism of chemical reactions, catalysis</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Кинетика и механизм химических реакций, катализ</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Kinetic Model of Erythrocyte Hemolysis Under the Action of an Azo Generator of Peroxide Radicals</article-title><trans-title-group xml:lang="ru"><trans-title>Кинетитическая модель гемолиза эритроцитов под действием азогенератора пероксидных радикалов</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Psikha</surname><given-names>B. L.</given-names></name><name xml:lang="ru"><surname>Психа</surname><given-names>Б. Л.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>psi@icp.ac.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Sokolova</surname><given-names>E. M.</given-names></name><name xml:lang="ru"><surname>Соколова</surname><given-names>Е. М.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>psi@icp.ac.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Dubenskaya</surname><given-names>N. A.</given-names></name><name xml:lang="ru"><surname>Дубенская</surname><given-names>Н. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>psi@icp.ac.ru</email><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Neshev</surname><given-names>N. I.</given-names></name><name xml:lang="ru"><surname>Нешев</surname><given-names>Н. И.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>psi@icp.ac.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Federal Research Center of Problems of Chemical Physics and Medicinal Chemistry of the Russian Academy of Sciences</institution></aff><aff><institution xml:lang="ru">Федеральный исследовательский центр проблем химической физики и медицинской химии Российской академии наук</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Lomonosov Moscow State University</institution></aff><aff><institution xml:lang="ru">Московский государственный университет им. М.В. Ломоносова</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2025-06-04" publication-format="electronic"><day>04</day><month>06</month><year>2025</year></pub-date><volume>44</volume><issue>6</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>55</fpage><lpage>66</lpage><history><date date-type="received" iso-8601-date="2025-07-01"><day>01</day><month>07</month><year>2025</year></date><date date-type="accepted" iso-8601-date="2025-07-01"><day>01</day><month>07</month><year>2025</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2025, Russian Academy of Sciences</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2025, Российская академия наук</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="en">Russian Academy of Sciences</copyright-holder><copyright-holder xml:lang="ru">Российская академия наук</copyright-holder></permissions><self-uri xlink:href="https://transsyst.ru/0207-401X/article/view/686514">https://transsyst.ru/0207-401X/article/view/686514</self-uri><abstract xml:lang="en"><p>A kinetic model of hemolysis of erythrocyte suspension under the action of the azo generator of peroxide radicals AAPH has been developed. The model is based on the assumption of cell hemolysis as a macroscopic consequence of the process of lipid peroxidation developing in the lipid region of the membrane, that lead to the accumulation of a certain molecular product, the critical concentration of which causes hemolysis. The kinetic component of the model is implemented as a solution to the direct problem of chemical kinetics with an obtainment of kinetic curves of formation of the supposed hemolysis factors. Due to the heterogeneity of the erythrocyte population, their morphological and other characteristics, including the response to the effect of the hemolytic factor, are statistically distributed. In this regard, the Gaussian normal distribution function was used as a mathematical basis for an accurate solution to the problem of the relationship between the degree of hemolysis and the concentration of the acting factor. This made it possible to describe the results of the hemolytic experiment with a good approximation.</p></abstract><trans-abstract xml:lang="ru"><p>Разработана кинетическая модель гемолиза суспензии эритроцитов под действием азогенератора пероксидных радикалов AAPH, основанная на предположении о гемолизе клетки как макроскопическом следствии развивающегося в липидной области мембраны процесса пероксидного окисления липидов, приводящего к накоплению определенного молекулярного продукта, критическая концентрация которого вызывает гемолиз. Кинетические кривые образования предполагаемых факторов гемолиза рассчитаны в результате решения прямой задачи химической кинетики. Из-за гетерогенности популяции эритроцитов их морфологические и иные характеристики, включая отклик на воздействие гемолитического фактора, оказываются статистически распределенными. В связи с этим в качестве математической основы для точного решения задачи о взаимосвязи степени гемолиза с концентрацией действующего фактора была использована функция нормального распределения Гаусса. Это позволило с хорошим приближением описать результаты гемолитического эксперимента.</p></trans-abstract><kwd-group xml:lang="en"><kwd>peroxidation of lipids</kwd><kwd>erythrocyte hemolysis</kwd><kwd>AAPH</kwd><kwd>kinetic modelling</kwd><kwd>normal distribution</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>пероксидное окисление липидов</kwd><kwd>гемолиз эритроцитов</kwd><kwd>AAPH</kwd><kwd>кинетическое моделирование</kwd><kwd>нормальное распределение</kwd></kwd-group><funding-group><award-group><funding-source><institution-wrap><institution xml:lang="ru">Правительство Российской Федерации</institution></institution-wrap><institution-wrap><institution xml:lang="en">Government of the Russian Federation</institution></institution-wrap></funding-source><award-id>124020500019-2</award-id></award-group></funding-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><citation-alternatives><mixed-citation xml:lang="en">Sæbø I.P., Bjørås M., Franzyk H. et al. // Intern. 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