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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">antibiotics</journal-id><journal-title-group><journal-title xml:lang="ru">Антибиотики и Химиотерапия</journal-title><trans-title-group xml:lang="en"><trans-title>Antibiot Khimioter = Antibiotics and Chemotherapy</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0235-2990</issn><publisher><publisher-name>ООО «Издательство ОКИ»</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.37489/0235-2990-2020-65-1-2-3-9</article-id><article-id custom-type="elpub" pub-id-type="custom">antibiotics-702</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 PAPERS</subject></subj-group></article-categories><title-group><article-title>Микробный датчик для определения активности амоксициллина</article-title><trans-title-group xml:lang="en"><trans-title>Microbial Sensor for Determination of Amoxicillin Activity</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>Гулий</surname><given-names>О. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Guliy</surname><given-names>O. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Саратов</p></bio><bio xml:lang="en"><p>Saratov</p></bio><email xlink:type="simple">guliy_olga@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>Зайцев</surname><given-names>Б. Д.</given-names></name><name name-style="western" xml:lang="en"><surname>Zaitsev</surname><given-names>B. D.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Саратов</p></bio><bio xml:lang="en"><p>Saratov</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Смирнов</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Smirnov</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Москва</p></bio><bio xml:lang="en"><p>Moscow</p></bio><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Караваева</surname><given-names>О. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Karavaeva</surname><given-names>O. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Саратов</p></bio><bio xml:lang="en"><p>Saratov</p></bio><xref ref-type="aff" rid="aff-4"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Алсовэйди</surname><given-names>А. К. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Alsowaidi</surname><given-names>A. К. М.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Саратов</p></bio><bio xml:lang="en"><p>Saratov</p></bio><xref ref-type="aff" rid="aff-5"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ларионова</surname><given-names>О. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Larionova</surname><given-names>O. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Саратов</p></bio><bio xml:lang="en"><p>Saratov</p></bio><xref ref-type="aff" rid="aff-6"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Бородина</surname><given-names>И. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Borodina</surname><given-names>I. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Саратов</p></bio><bio xml:lang="en"><p>Saratov</p></bio><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт биохимии и физиологии растений и микроорганизмов РАН; Саратовский государственный аграрный университет им. Н. И. Вавилова</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Institute of Biochemistry and Physiology of Plants and Microorganisms, RAS; Saratov State Vavilov Agrarian University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Институт Радиотехники и Электроники им В.А. Котельникова РАН, Саратовский филиал</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Kotelnikov Institute of Radio Engineering and Electronics, RAS, Saratov Branch</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Институт радиотехники и электроники им. В. А. Котельникова РАН</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Kotelnikov Institute of Radio Engineering and Electronics, RAS</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-4"><aff xml:lang="ru"><institution>Институт биохимии и физиологии растений и микроорганизмов РАН</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Institute of Biochemistry and Physiology of Plants and Microorganisms, RAS</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-5"><aff xml:lang="ru"><institution>Саратовский национальный исследовательский государственный университет им. Н. Г. Чернышевского</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Saratov State University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-6"><aff xml:lang="ru"><institution>Саратовский государственный аграрный университет им. Н. И. Вавилова</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Saratov State Vavilov Agrarian University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2020</year></pub-date><pub-date pub-type="epub"><day>23</day><month>05</month><year>2020</year></pub-date><volume>65</volume><issue>1-2</issue><fpage>3</fpage><lpage>9</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Гулий О.И., Зайцев Б.Д., Смирнов А.В., Караваева О.А., Алсовэйди А.К., Ларионова О.С., Бородина И.А., 2020</copyright-statement><copyright-year>2020</copyright-year><copyright-holder xml:lang="ru">Гулий О.И., Зайцев Б.Д., Смирнов А.В., Караваева О.А., Алсовэйди А.К., Ларионова О.С., Бородина И.А.</copyright-holder><copyright-holder xml:lang="en">Guliy O.I., Zaitsev B.D., Smirnov A.V., Karavaeva O.A., Alsowaidi A.К., Larionova O.S., Borodina I.A.</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.antibiotics-chemotherapy.ru/jour/article/view/702">https://www.antibiotics-chemotherapy.ru/jour/article/view/702</self-uri><abstract><p>Разработан датчик на основе электродинамического сверхвысокочастотного (СВЧ) резонатора для определения антибактериальной активности антибиотиков на примере амоксициллина. В качестве чувствительного элемента датчика использовали микробные клетки, иммобилизованные на поверхности плёнки полистирола. Определены оптимальные условия иммобилизации микробных клеток Escherichia coli Xl-1 на поверхности тонкой плёнки полистирола, модифицированной в плазме высокочастотного разряда аргона и нанесённой на пластину ниобата лития. Исследовано влияние амоксициллина на иммобилизованные микробные клетки с помощью СВЧ резонатора. Установлено, что воздействие амоксициллина (от 5 до 50 мкг/мл) приводит к существенному изменению коэффициента отражения S11 на резонансной частоте от пластины ниобата лития в интервале от -12,6 дБ до -15,1 дБ. Показано, что с помощью микробного датчика на основе электродинамического СВЧ резонатора можно определять антибактериальную активность препаратов в исследуемом диапазоне концентраций при времени анализа 15 мин.</p></abstract><trans-abstract xml:lang="en"><p>A sensor based on the electrodynamic microwave resonator has been developed to determine the antibacterial activity of antibiotics using amoxicillin as an example. Microbial cells immobilized on the polystyrene film surface were used as a sensitive element of the sensor. The optimal conditions for the immobilization of Escherichia coli Xl-1 microbial cells on the surface of a thin polystyrene film modified in high-frequency argon discharge plasma and deposited on a lithium niobate plate were determined. The effect of amoxicillin on immobilized microbial cells was studied using the developed sensor. It has been established that the increase in con- centration of amoxicillin from 5 to 50 μg/ml leads to a significant change in the reflection coefficient S11 at the resonance frequency from the lithium niobate plate in the range of -12.6 dB — -15.1 dB. It has been shown that the developed sensor allows determining the antibacterial activity of drugs in the studied concentration range with an analysis time of 15 min.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>Escherichia coli</kwd><kwd>амоксициллин</kwd><kwd>иммобилизация</kwd><kwd>тонкие плёнки</kwd><kwd>полистирол</kwd><kwd>микробный сенсор</kwd><kwd>коэффициент отражения</kwd><kwd>антибактериальная активность</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Escherichia coli</kwd><kwd>amoxicillin</kwd><kwd>immobilization</kwd><kwd>thin films</kwd><kwd>polystyrene</kwd><kwd>microbial sensor</kwd><kwd>reflection coefficient</kwd><kwd>antibacterial 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">De Miguel-Ramos M., Díaz-Dura ´ n B., Escolano J., Barba M., Mirea T., Olivares J. et al. 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