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<article 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" article-type="research-article" dtd-version="1.1d1" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher">Applied Information Aspects of Medicine (Prikladnye informacionnye aspekty mediciny)</journal-id><journal-title-group><journal-title>Applied Information Aspects of Medicine (Prikladnye informacionnye aspekty mediciny)</journal-title></journal-title-group><issn publication-format="electronic">2070-9277</issn><publisher><publisher-name>Voronezh State Medical University named after N.N. Burdenko - The State Budgetary Institution of Higher Professional Education «Voronezh State Medical University named after N.N. Burdenko» of the Ministry of Public Health of the Russian</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">11573</article-id><article-id pub-id-type="doi">10.18499/2070-9277-2026-29-1-98-102</article-id><article-categories><subj-group subj-group-type="heading"><subject></subject></subj-group></article-categories><title-group><article-title>Determination of insulin in liquid mediums by amperometric sensors modified by a polymer with molecular impressions</article-title></title-group><contrib-group><contrib contrib-type="author"><name name-style="western"><surname>Frolova</surname><given-names>Maria</given-names></name><bio>&lt;p&gt;Master's student at the Department of Chemical and Biological Sciences and Pharmacology&lt;/p&gt;</bio><email>maria0.01@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author"><name name-style="western"><surname>Morgacheva</surname><given-names>Natalya Victorovna</given-names></name><bio>&lt;p&gt;PhD, Associate Professor, Head of the Department of Chemical and Biological Disciplines and Pharmacology&lt;/p&gt;</bio><email>biokafe@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author"><name name-style="western"><surname>Zyablov</surname><given-names>Alexander Nikolaevich</given-names></name><bio>&lt;p&gt;Professor of the Department of Chemical and Biological Disciplines and Pharmacology; Doctor of Chemistry, Professor of the Department of Analytical Chemistry&lt;/p&gt;</bio><email>alex-n-z@yandex.ru</email><xref ref-type="aff" rid="aff-1"/><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff id="aff-1">Yelets State University named after I.A. Bunin</aff><aff id="aff-2">Voronezh State University</aff><pub-date date-type="epub" iso-8601-date="2026-04-07" publication-format="electronic"><day>07</day><month>04</month><year>2026</year></pub-date><volume>29</volume><issue>1</issue><fpage>93</fpage><lpage>97</lpage><history><pub-date date-type="received" iso-8601-date="2026-04-02"><day>02</day><month>04</month><year>2026</year></pub-date></history><permissions><copyright-statement>Copyright © 2026, Applied Information Aspects of Medicine (Prikladnye informacionnye aspekty mediciny)</copyright-statement><copyright-year>2026</copyright-year></permissions><abstract>&lt;p&gt;Amperometric sensors based on polymers with molecular fingerprints have been developed for the determination of insulin in liquid media. The metrological characteristics of PMO sensors have been experimentally established. The range of linear determination of concentrations was 0.058  0.012 g/L, the detection limit is 0.01 g/L. The error of quantitative determination does not exceed 4%, which indicates that the method is sufficiently accurate. The method is characterized by resistance to the influence of accompanying substances present in biological fluids, which makes it a promising approach for insulin analysis.&lt;/p&gt;</abstract><kwd-group xml:lang="en"><kwd>insulin</kwd><kwd>amperometric sensor</kwd><kwd>polymers with molecular fingerprints.</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>инсулин</kwd><kwd>амперометрический сенсор</kwd><kwd>полимеры с молекулярными отпечатками</kwd></kwd-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>1. Аналитические методы определения инсулина и его аналогов: современные подходы // Современные подходы к определению биологической активности инсулина и его аналогов. 2019. Т. 9, № 2. С. 85–92.</mixed-citation></ref><ref id="B2"><label>2.</label><mixed-citation>2. Жерин И. И., Амелина Г. Н., Страшко А. 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