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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="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">zhps</journal-id><journal-title-group><journal-title xml:lang="ru">Журнал прикладной спектроскопии</journal-title><trans-title-group xml:lang="en"><trans-title>Zhurnal Prikladnoii Spektroskopii</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0514-7506</issn><publisher><publisher-name>B. I. Stepanov Institute of Physics of the National Academy of Sciences</publisher-name></publisher></journal-meta><article-meta><article-id custom-type="elpub" pub-id-type="custom">zhps-32</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="ru"><subject>***</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>***</subject></subj-group></article-categories><title-group><article-title>ИЗУЧЕНИЕ ЛИГАНДНОГО ОБМЕНА МЕЖДУ ДВУМЯ КОМПЛЕКСАМИ ФЕНАНТРОЛИНА И БЫЧЬИМ СЫВОРОТОЧНЫМ АЛЬБУМИНОМ ПО СПЕКТРАМ ФЛУОРЕСЦЕНЦИИ</article-title><trans-title-group xml:lang="en"><trans-title>LUMINESCENCE STUDIES OF THE LIGAND EXCHANGE BETWEEN TWO PHENANTHROLINE COMPLEXES AND BOVINE SERUM ALBUMIN</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Lin</surname><given-names>H. -B.</given-names></name><name name-style="western" xml:lang="en"><surname>Lin</surname><given-names>H. -B.</given-names></name></name-alternatives><email xlink:type="simple">526733412@qq.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Shen</surname><given-names>Q. -H.</given-names></name><name name-style="western" xml:lang="en"><surname>Shen</surname><given-names>Q. -H.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Колледж химии и охраны окружающей среды, Университет провинции Фуцзянь; Педагогический университет Mиннанa</institution></aff><aff xml:lang="en"><institution>College of Chemistry and Environment, Fujian Province University, Minnan Normal University</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2017</year></pub-date><pub-date pub-type="epub"><day>10</day><month>03</month><year>2020</year></pub-date><volume>84</volume><issue>1</issue><elocation-id>169(1)-169(7)</elocation-id><permissions><copyright-statement>Copyright &amp;#x00A9; Lin H.-., Shen Q.-., 2020</copyright-statement><copyright-year>2020</copyright-year><copyright-holder xml:lang="ru">Lin H.-., Shen Q.-.</copyright-holder><copyright-holder xml:lang="en">Lin H.-., Shen Q.-.</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://zhps.ejournal.by/jour/article/view/32">https://zhps.ejournal.by/jour/article/view/32</self-uri><abstract><p>Методами спектроскопии флуоресценции и поглощения в УФ и видимом диапазонах исследовано взаимодействие бычьего сывороточного альбумина (БСА) с двумя комплексами Cu(II)-фенантролина. Полученные результаты подтверждают, что лиганд 1,10-фенантролин (Фен) диссоциирует из обоих комплексов и перемещается в гидрофобную полость БСА, а M-L комплексы (M = Co2+, Cu2+; L = Hlact, imda, где Hlact - молочная кислота, H2imda - иминодиуксусная кислота) координируют с аминокислотами на поверхности пептида в растворе. Такое взаимодействие существенно препятствует денатурации БСА. Расчет расстояния между БСА и обоими комплексами показывает, что перенос энергии от возбужденного состояния БСА к комплексам происходит с высокой эффективностью. </p></abstract><trans-abstract xml:lang="en"><p>The interactions between bovine serum albumin (BSA) and two Cu(II) phenanthroline complexes were studied by fluorescence and UV-visible absorption spectroscopy. The obtained results confirm that the phen ligand (phen = 1,10-phenanthroline) is dissociated from the two complexes and moves into the hydrophobic cavity of BSA and that the M-L complexes (M = Co2+ , Cu2+ ; L = Hlact, imda; Hlact = lactic acid, H2imda = = iminodiacetic acid) coordinate with the amino acids on the surface of the peptide in the solution. This mode of action significantly inhibits the denaturation of BSA. The calculated distance between the BSA and the two complexes suggests that the energy transfer from the excited state of BSA to a complex occurs with high efficiency. </p></trans-abstract><kwd-group xml:lang="ru"><kwd>лигандный обмен</kwd><kwd>фенантролин</kwd><kwd>бычий сывороточный альбумин</kwd><kwd>спектр флуоресценции</kwd><kwd>ligand exchange</kwd><kwd>phenanthroline</kwd><kwd>bovine serum albumin</kwd><kwd>fluorescence spectrum</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">S. Kitagawa, R. Kitaura, S. Noro, Angew. Chem. Int. Ed., 43, 2334-2375 (2004).</mixed-citation><mixed-citation xml:lang="en">S. Kitagawa, R. Kitaura, S. Noro, Angew. Chem. Int. Ed., 43, 2334-2375 (2004).</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">F. Mori, T. Nyui, T. Ishida, T. Nogami, K. Ychoi, H. 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