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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">bioph</journal-id><journal-title-group><journal-title xml:lang="ru">Biomedical Photonics</journal-title><trans-title-group xml:lang="en"><trans-title>Biomedical Photonics</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2413-9432</issn><publisher><publisher-name>Non-profit partnership for development of domestic photodynamic therapy and photodiagnosis</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.24931/2413-9432-2017-6-4-27-36</article-id><article-id custom-type="elpub" pub-id-type="custom">bioph-202</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>ОРИГИНАЛЬНЫЕ СТАТЬИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ORIGINAL ARTICLES</subject></subj-group></article-categories><title-group><article-title>ФОТОДИНАМИЧЕСКАЯ ИНАКТИВАЦИЯ ПАТОГЕННЫХ БАКТЕРИЙ В БИОПЛЕНКАХ С ИСПОЛЬЗОВАНИЕМ НОВЫХ СИНТЕТИЧЕСКИХ ПРОИЗВОДНЫХ БАКТЕРИОХЛОРИНА</article-title><trans-title-group xml:lang="en"><trans-title>PHOTODYNAMIC INACTIVATION OF PATHOGENIC BACTERIA IN BIOFILMS USING NEW SYNTHETIC BACTERIOCHLORIN DERIVATIVES</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>Тиганова</surname><given-names>И. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Tiganova</surname><given-names>I. G.</given-names></name></name-alternatives><email xlink:type="simple">iraida1tig@mail.ru</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>Макарова</surname><given-names>Е. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Makarova</surname><given-names>E. A.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Меерович</surname><given-names>Г. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Meerovich</surname><given-names>G. A.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Алексеева</surname><given-names>Н. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Alekseeva</surname><given-names>N. V.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Толордава</surname><given-names>Э. Р.</given-names></name><name name-style="western" xml:lang="en"><surname>Tolordava</surname><given-names>E. R.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Жижимова</surname><given-names>Ю. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Zhizhimova</surname><given-names>Yu. S.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Лукьянец</surname><given-names>Е. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Lukyanets</surname><given-names>E. A.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Романова</surname><given-names>Ю. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Romanova</surname><given-names>Yu. M.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-4"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Национальный исследовательский центр эпидемиологии и микробиологии им. почетного акад. Н.Ф. Гамалеи</institution><country>Россия</country></aff><aff xml:lang="en"><institution>N.F. Gamaleya National Research Center for Epidemiology and Microbiology</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>ФГУП ГНЦ «НИОПИК»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Organic Intermediates and Dyes Institute</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Институт общей физики имени А.М. Прохорова РАН&#13;
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Национальный исследовательский ядерный университет МИФИ</institution><country>Россия</country></aff><aff xml:lang="en"><institution>A.M. Prokhorov General Physics Institute of Russian Academy of Sciences&#13;
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National research nuclear university MEPhI</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-4"><aff xml:lang="ru"><institution>Национальный исследовательский центр эпидемиологии и микробиологии им. почетного акад. Н.Ф. Гамалеи&#13;
&#13;
Первый Московский Государственный Медицинский Университет им. И.М. Сеченова</institution><country>Россия</country></aff><aff xml:lang="en"><institution>N.F. Gamaleya National Research Center for Epidemiology and Microbiology&#13;
&#13;
I.M. Sechenov First Moscow State Medical University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2017</year></pub-date><pub-date pub-type="epub"><day>21</day><month>02</month><year>2018</year></pub-date><volume>6</volume><issue>4</issue><fpage>27</fpage><lpage>36</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Тиганова И.Г., Макарова Е.А., Меерович Г.А., Алексеева Н.В., Толордава Э.Р., Жижимова Ю.С., Лукьянец Е.А., Романова Ю.М., 2018</copyright-statement><copyright-year>2018</copyright-year><copyright-holder xml:lang="ru">Тиганова И.Г., Макарова Е.А., Меерович Г.А., Алексеева Н.В., Толордава Э.Р., Жижимова Ю.С., Лукьянец Е.А., Романова Ю.М.</copyright-holder><copyright-holder xml:lang="en">Tiganova I.G., Makarova E.A., Meerovich G.A., Alekseeva N.V., Tolordava E.R., Zhizhimova Y.S., Lukyanets E.A., Romanova Y.M.</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://www.pdt-journal.com/jour/article/view/202">https://www.pdt-journal.com/jour/article/view/202</self-uri><abstract><p>Производные бактериохлорина, как антимикробные фотосенсибилизаторы, имеют серьезные перспективы в связи с растущей множественной антибиотикорезистентностью бактерий. В  работе было изучено in vitro влияние количества положительно заряженных заместителей и  липофильности молекулы синтетических производных бактериохлорина на эффективность фотодинамической инактивации бактерий в биопленках с целью определить  оптимальное соотношение этих параметров. Были исследованы четыре синтетических  производных бактериохлорина, синтезированные во ФГУП «ГНЦ «НИОПИК»: гидрофобный нейтральный мезо-тетра(3-пиридил)бактериохлорин (ВС1), амфифильный  тетракатионный мезо-тетра(1-ундецил-3-пиридил) бактериохлорин тетрабромид (ВС2),  гидрофильные тетракатионный мезо-тетра[1-(4'-бромбутил)-3-пиридил]бактериохлорин тетрабромид (ВС3) и октакатионный мезо-тетра[1-(4'-пиридиниобутил)-3-пиридил]бактериохлорин октабромид (ВС4). Наибольшую эффективность в фотоинактивации бактерий в биопленках показали  водорастворимые катионные производные бактериохлорина. Полную гибель бактерий в биопленках (99,999% и более) вызывали для S. aureus 15 тетракатионный ВС3, а для P. aeruginosa 32 октакатионный ВС4. В отношении грамотрицательных бактерий в биопленках  увеличение числа катионных групп у фотосенсибилизатора от 4 до 8 усиливало  бактерицидное действие. Отсутствие заряда и высокая липофильность молекулы фотосенсибилизатора оказывали негативное влияние на фотодинамическую  инактивацию бактерий в биопленках. Проведенные эксперименты показали, что одним из  механизмов бактерицидного действия фотосенсибилизаторов может быть разрушение мембран бактерий в результате фотодинамического воздействия.</p></abstract><trans-abstract xml:lang="en"><p>Bacteriochlorins as the antimicrobial photosensitizers have a promising future in the face of the unrelenting increase in antimicrobial resistance. The goal of this study was to investigate the infl uence of lipophilicity and number of positively charged  substituents in these molecules on the photodynamic inactivation  (PDI) of biofi lm bacteria in vitro. Testing how bacteriochlorin  derivatives with different properties affect microbes will allow to  determine the optimal ratio of these parameters within a single  molecule. We have investigated 4 bacteriochlorin derivatives, all of  which were synthesized in Organic Intermediates and Dyes Institute. These were: hydrophobic neutral meso-tetra(3-pyridyl)  bacteriochlorin (ВС1), amphyphilic tetracationic meso-tetra(1- undecyl-3-pyridyl)bacteriochlorin tetrabromide (ВС2), hydrophilic  tetracationic meso-tetra[1-(4'-bromobutyl)-3-pyridyl]bacteriochlorin  tetrabromide (ВС3) and octacationic meso-tetra[1-(4'-pyridiniobutyl) -3-pyridyl]bacteriochlorin octabromide (ВС4) . The water-soluble  cationic bacteriochlorin derivatives showed the most effective PDI of  bacteria in biofi lms. While tetracationic BC3 caused total inactivation of S. aureus 15, octacationic BC4 was bactericidal for P. aeruginosa  32 to the same degree (&gt;99.999%). Interestingly, increasing the  number of cationic substituents from 4 to 8 in bacteriochlorin  molecules enhances bactericidal action against gram-negative  bacteria in biofi lms. The lack of charge-carrying groups and high  degree of lipophilicity of PS have negative impact on PDI of biofi lm  bacteria. Bacterial membrane damage as a result of PDI can be one of the causes of cell death.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>биопленки бактерий</kwd><kwd>фотосенсибилизатор</kwd><kwd>фотодинамическая инактивация</kwd><kwd>бактериохлорин</kwd></kwd-group><kwd-group xml:lang="en"><kwd>bacterial biofilms</kwd><kwd>photosensitizer</kwd><kwd>photodynamic inactivation</kwd><kwd>bacteriochlorin</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">Malik Z., Ladan H., Nitzan Y. Photodynamic inactivation of Gramnegative bacteria: problems and possible solutions // J. Photochem. Photobiol. – 1992. – Vol. 14. – P. 262-266.</mixed-citation><mixed-citation xml:lang="en">Malik Z., Ladan H., Nitzan Y. Photodynamic inactivation of Gramnegative bacteria:  problems and possible solutions, J. Photochem. 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