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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">54416</article-id>
   <article-categories>
    <subj-group subj-group-type="toc-heading" xml:lang="ru">
     <subject>Общая биофизика</subject>
    </subj-group>
    <subj-group subj-group-type="toc-heading" xml:lang="en">
     <subject>General biophysics</subject>
    </subj-group>
    <subj-group>
     <subject>Общая биофизика</subject>
    </subj-group>
   </article-categories>
   <title-group>
    <article-title xml:lang="en">COATING LIPOSOMS WITH CHITOSAN AND THEIR MUCOADHESIVE PROPERTIES</article-title>
    <trans-title-group xml:lang="ru">
     <trans-title>ПОКРЫТИЕ ЛИПОСОМ ХИТОЗАНОМ И ИХ МУКОАДГЕЗИВНЫЕ СВОЙСТВА</trans-title>
    </trans-title-group>
   </title-group>
   <contrib-group content-type="authors">
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Горбач</surname>
       <given-names>В И</given-names>
      </name>
      <name xml:lang="en">
       <surname>Gorbach</surname>
       <given-names>V I</given-names>
      </name>
     </name-alternatives>
     <email>vigorbach@bk.ru</email>
     <xref ref-type="aff" rid="aff-1"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Ермак</surname>
       <given-names>И М</given-names>
      </name>
      <name xml:lang="en">
       <surname>Yermak</surname>
       <given-names>I M</given-names>
      </name>
     </name-alternatives>
     <xref ref-type="aff" rid="aff-2"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Давыдова</surname>
       <given-names>В. Н.</given-names>
      </name>
      <name xml:lang="en">
       <surname>Davydova</surname>
       <given-names>V. N.</given-names>
      </name>
     </name-alternatives>
     <email>vikdavidova@yandex.ru</email>
     <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>
     <country>ru</country>
    </aff>
    <aff>
     <institution xml:lang="en">G.B. Elyakov Pacific Institute of Bioorganic Chemistry FEB RAS</institution>
     <country>ru</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-2">
    <aff>
     <institution xml:lang="ru">Тихоокеанский институт биоорганической химии им. Г.Б. Елякова ДВО РАН</institution>
     <country>ru</country>
    </aff>
    <aff>
     <institution xml:lang="en">G.B. Elyakov Pacific Institute of Bioorganic Chemistry FEB RAS</institution>
     <country>ru</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 FEB RAS</institution>
     <city>Vladivostok</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <pub-date publication-format="print" date-type="pub" iso-8601-date="2019-06-25T20:22:29+03:00">
    <day>25</day>
    <month>06</month>
    <year>2019</year>
   </pub-date>
   <pub-date publication-format="electronic" date-type="pub" iso-8601-date="2019-06-25T20:22:29+03:00">
    <day>25</day>
    <month>06</month>
    <year>2019</year>
   </pub-date>
   <volume>4</volume>
   <issue>2</issue>
   <fpage>178</fpage>
   <lpage>181</lpage>
   <history>
    <date date-type="received" iso-8601-date="2019-06-20T20:22:29+03:00">
     <day>20</day>
     <month>06</month>
     <year>2019</year>
    </date>
    <date date-type="accepted" iso-8601-date="2019-06-20T20:22:29+03:00">
     <day>20</day>
     <month>06</month>
     <year>2019</year>
    </date>
   </history>
   <self-uri xlink:href="https://rusjbpc.ru/en/nauka/article/54416/view">https://rusjbpc.ru/en/nauka/article/54416/view</self-uri>
   <abstract xml:lang="ru">
    <p>Получены нейтральные (НЛ) и анионные липосомы (АЛ) покрытые хитозаном. Определены их размер и z-потенциал. НЛ представляли собой частицы с узким молекулярно-массовым распределением и средним диаметром 435,6 ± 59,9 нм. АЛ были более гетерогенными со средним диаметром 525,8 ± 76,3. Покрытие хитозаном способствовало перезарядке липосом. В случае НЛ было достаточно 100 мкг/мл хитозана, чтобы получить положительно заряженные частицы. АЛ покрытые хитозаном показывали изменение заряда, пропорционально концентрации добавленного полисахарида: при инкубации с раствором хитозана в концентрации 100 мкг/мл их заряд нейтрализовался только частично. Положительно заряженные липосомы были получены при инкубации с раствором хитозана с концентрацией 400 мкг/мл. Показано, что липосомы покрытые хитозаном проявляют мукоадгезивные свойства, прикрепляясь к слизистой поверхности ткани кишечника, причем этот процесс зависит от времени. После 5 мин инкубации к поверхности слизистой прикрепляется около 10% НЛ и АЛ. Увеличение времени инкубации до 60 мин количество адгезированных липосом возрастает. При этом активность НЛ была в 2 раза выше, чем АЛ.</p>
   </abstract>
   <trans-abstract xml:lang="en">
    <p>Neutral (NL) and anionic liposomes (AL) coated with chitosan were prepared. Their size distribution and z-potential were determined. NL were particles with a narrow molecular weight distribution and an average diameter of 435.6 nm. AL were more heterogeneous with an average diameter of 525.8 nm. Chitosan coating led to liposome recharging. In the case of NL, 100 µg / ml of chitosan was sufficient to obtain positively charged particles. AL coated with chitosan showed a change in charge depending on the concentration of the added polysaccharide. Incubation of liposomes with a chitosan solution at a concentration of 100 μg/ml neutralized their charge only partially. Positively charged liposomes were obtained by incubation with chitosan solution at a concentration of 400 μg/ml. It has been shown that liposomes coated with chitosan exhibit mucoadhesive properties, attaching to the mucosal surface of the intestinal tissue, and this process depends on time. After 5 minutes of incubation, about 10% NL and AL were attached to the mucosal surface. Increasing the incubation time to 60 minutes raised the amount of adhered liposomes. At the same time, the activity of NL was 2 times higher than that of AL.</p>
   </trans-abstract>
   <kwd-group xml:lang="ru">
    <kwd>липосомы</kwd>
    <kwd>хитозан</kwd>
    <kwd>z-потенциал</kwd>
    <kwd>мукоадгезивные свойства</kwd>
   </kwd-group>
   <kwd-group xml:lang="en">
    <kwd>liposomes</kwd>
    <kwd>chitosan</kwd>
    <kwd>z-potential</kwd>
    <kwd>mucoadhesive properties</kwd>
   </kwd-group>
  </article-meta>
 </front>
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