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 <front>
  <journal-meta>
   <journal-id journal-id-type="publisher-id">Russian Journal of Biological Physics and Chemisrty</journal-id>
   <journal-title-group>
    <journal-title xml:lang="en">Russian Journal of Biological Physics and Chemisrty</journal-title>
    <trans-title-group xml:lang="ru">
     <trans-title>АКТУАЛЬНЫЕ ВОПРОСЫ БИОЛОГИЧЕСКОЙ ФИЗИКИ И ХИМИИ</trans-title>
    </trans-title-group>
   </journal-title-group>
   <issn publication-format="print">2499-9962</issn>
  </journal-meta>
  <article-meta>
   <article-id pub-id-type="publisher-id">55117</article-id>
   <article-id pub-id-type="doi">10.29039/rusjbpc.2022.0539</article-id>
   <article-categories>
    <subj-group subj-group-type="toc-heading" xml:lang="ru">
     <subject>МЕДИЦИНСКАЯ БИОФИЗИКА И БИОФИЗИЧЕСКАЯ ХИМИЯ</subject>
    </subj-group>
    <subj-group subj-group-type="toc-heading" xml:lang="en">
     <subject>MEDICAL BIOPHYSICS AND BIOPHYSICAL CHEMISTRY</subject>
    </subj-group>
    <subj-group>
     <subject>МЕДИЦИНСКАЯ БИОФИЗИКА И БИОФИЗИЧЕСКАЯ ХИМИЯ</subject>
    </subj-group>
   </article-categories>
   <title-group>
    <article-title xml:lang="en">QUANTUM DOTS OF CADMIUM SULFIDE PRODUCED WITH THE USE OF PROTEINS-PORINS, CARRAGEANANS, CHITOSANS AND LIPOPOLOSACCHARIDES</article-title>
    <trans-title-group xml:lang="ru">
     <trans-title>КВАНТОВЫЕ ТОЧКИ СУЛЬФИДА КАДМИЯ, ПОЛУЧЕННЫЕ С ИСПОЛЬЗОВАНИЕМ БЕЛКОВ-ПОРИНОВ, КАРРАГИНАНОВ, ХИТОЗАНОВ И ЛИПОПОЛИСАХАРИДОВ</trans-title>
    </trans-title-group>
   </title-group>
   <contrib-group content-type="authors">
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Набережных</surname>
       <given-names>Г. А.</given-names>
      </name>
      <name xml:lang="en">
       <surname>Naberezhnykh</surname>
       <given-names>G. A.</given-names>
      </name>
     </name-alternatives>
     <email>naber1953@mail.ru</email>
     <xref ref-type="aff" rid="aff-1"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Сергеев</surname>
       <given-names>А. А.</given-names>
      </name>
      <name xml:lang="en">
       <surname>Sergeev</surname>
       <given-names>A. A.</given-names>
      </name>
     </name-alternatives>
     <xref ref-type="aff" rid="aff-2"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Новикова</surname>
       <given-names>О. Д.</given-names>
      </name>
      <name xml:lang="en">
       <surname>Novikova</surname>
       <given-names>O. D.</given-names>
      </name>
     </name-alternatives>
     <xref ref-type="aff" rid="aff-3"/>
    </contrib>
   </contrib-group>
   <aff-alternatives id="aff-1">
    <aff>
     <institution xml:lang="ru">Тихоокеанский институт биоорганической химии им. Г.Б. Елякова ДВО РАН</institution>
     <city>Владивосток</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch of the Russian Academy of Sciences</institution>
     <city>Vladivostok</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-2">
    <aff>
     <institution xml:lang="ru">Институт автоматики и процессов управления ДВО РАН</institution>
     <city>Владивосток</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">Institute of Automation and Control Processes Far Eastern Branch of the Russian Academy of Sciences</institution>
     <city>Vladivostok</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-3">
    <aff>
     <institution xml:lang="ru">Тихоокеанский институт биоорганической химии им. Г.Б. Елякова ДВО РАН</institution>
     <city>Владивосток</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch of the Russian Academy of Sciences</institution>
     <city>Vladivostok</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <pub-date publication-format="print" date-type="pub" iso-8601-date="2022-09-28T20:22:29+03:00">
    <day>28</day>
    <month>09</month>
    <year>2022</year>
   </pub-date>
   <pub-date publication-format="electronic" date-type="pub" iso-8601-date="2022-09-28T20:22:29+03:00">
    <day>28</day>
    <month>09</month>
    <year>2022</year>
   </pub-date>
   <volume>7</volume>
   <issue>3</issue>
   <fpage>428</fpage>
   <lpage>433</lpage>
   <history>
    <date date-type="received" iso-8601-date="2022-09-20T20:22:29+03:00">
     <day>20</day>
     <month>09</month>
     <year>2022</year>
    </date>
    <date date-type="accepted" iso-8601-date="2022-09-20T20:22:29+03:00">
     <day>20</day>
     <month>09</month>
     <year>2022</year>
    </date>
   </history>
   <self-uri xlink:href="https://rusjbpc.ru/en/nauka/article/55117/view">https://rusjbpc.ru/en/nauka/article/55117/view</self-uri>
   <abstract xml:lang="ru">
    <p>Квантовые точки (КТ) представляют собой новое поколение флуорохромов, обладающих значительными преимуществами по сравнению с традиционными органическими красителями. КТ на основе CdS являются перспективными материалами для оптики, оптоэлектроники, биологии и медицины. В данной работе предложен новый эффективный метод получения биоконъюгатов на основе природных биополимеров. Меченные квантовыми точками CdS матрицы были синтезированы in situ в водном растворе с использованием OmpF порина Yersinia pseudotuberculosis (YpOmpF) и полисахаридов, положительно (хитозан) и отрицательно (каррагинан, липополисахарид) заряженных. Максимум спектров эмиссии для всех полученных образцов составлял 450 нм, что свидетельствует об одинаковом размере КТ, который определяется размером «ячеек» сетчатой матрицы, ограничивающих их размер. Обнаружено, что интенсивность флуоресценции КТ, синтезированных в растворе липополисахарида, была в два раза выше, чем у остальных образцов. Флуоресценция меченых биоматриц и максимумы спектров их эмиссии (450 нм) сохраняются при интенсивном диализе против буферов, что свидетельствует об устойчивости КТ и возможности практического использования полученных биоконъюгатов. Апробация биосенсора на основе порина показала, что взаимодействие с IgG, специфичными к YpOmpF, приводит к существенному изменению интенсивности люминесценции комплекса КТ-порин. Эти результаты открывают перспективу использования наноструктур на основе поринов, меченных КТ, в качестве биосенсоров для целей иммунодиагностики.</p>
   </abstract>
   <trans-abstract xml:lang="en">
    <p>Quantum dots (QDs) are a new generation of fluorochromes with significant advantages over traditional organic dyes. QDs based on CdS are promising materials for optics, optoelectronics, biology, and medicine. QDs in the form of colloidal solutions are of great scientific and practical interest. CdS quantum dots were synthesized by chemical condensation in an aqueous solution using Yersinia pseudotuberculosis porin proteins, positively (chitosan) and negatively (carrageenan, lipopolysaccharide) charged polysaccharides. The maxima of the emission spectra for all samples were 450 nm, which indicates the same QD size; is determined by the size of the &quot;cells&quot; of the grid matrix, which limit the size of the QD. It was shown that the fluorescence intensity of QDs synthesized in LPS solutions was two times higher than that of other samples. The fluorescence of the samples and the maxima of the emission spectra (450 nm) are preserved during intensive dialysis against buffers, which indicates the stability of QDs and the possibility of using the obtained labeled preparations. Keeping samples at pH 3 leads to a significant decrease in fluorescence, especially for acidic polysaccharides. Anionic oxygen of phosphate, hydroxyl groups of sugar, nitrogen atoms can interact with metal ions, which are precursors (precursors) for CdS nanocrystals. It was found that the interaction with porin-specific IgG leads to a significant change in the luminescence intensity of QD-porin samples. This is of interest from the point of view of chemical sensing and opens the prospect of using QD-labeled porin-based nanostructures as biosensors.</p>
   </trans-abstract>
   <kwd-group xml:lang="ru">
    <kwd>порин</kwd>
    <kwd>хитозан</kwd>
    <kwd>каррагинан</kwd>
    <kwd>липополисахарид</kwd>
    <kwd>сульфид кадмия</kwd>
    <kwd>квантовые точки</kwd>
    <kwd>конъюгация</kwd>
    <kwd>люминесценция</kwd>
   </kwd-group>
   <kwd-group xml:lang="en">
    <kwd>porin</kwd>
    <kwd>chitosan</kwd>
    <kwd>carrageenan</kwd>
    <kwd>lipopolysaccharide</kwd>
    <kwd>cadmium sulfide</kwd>
    <kwd>quantum dots</kwd>
    <kwd>conjugation</kwd>
    <kwd>luminescence</kwd>
   </kwd-group>
  </article-meta>
 </front>
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