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Your search keyword '"Evtugyn, Gennady A."' showing total 291 results
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291 results on '"Evtugyn, Gennady A."'

60. List of contributors

Author

Aftab, Saima, Ait Lahcen, Abdellatif, Ali, Javadinezam, Baachaoui, Sabrine, Bakirhan, Nurgul K., Budak, Fatma, Caglayan, Mehmet Gokhan, Çalımcı, Merve, Cetinkaya, Ahmet, Çimen, Duygu, de la Escosura-Muñiz, Alfredo, Denizli, Adil, Diédhiou, Ismaila, Dilgin, Didem, Dilgin, Yusuf, Evtugyn, Gennady, Fall, Modou, Hanbeyoğlu, Ayşe, Ince, Bahar, Karadurmus, Leyla, Karakaya, Serkan, Kaya, S. Irem, Kayis, Elif Calik, Kocak, Engin, Kozitsina, Alisa, Malode, Shweta J., Mazaher, Ahmadi, Nisar, Jan, Ozcelikay Akyildiz, Goksu, Ozkan, Ece, Ozkan, Sibel A., Özyurt, Canan, Raouafi, Noureddine, Samancı, Seyda Nur, Seyed Sepehr, Uroomiye, Sezgintürk, Mustafa Kemal, Shah, Afzal, Shanbhag, Mahesh M., Shetti, Nagaraj P., Sultan, Sundas, Tamer, Ugur, Tezcan, Tugba, Torul, Hilal, Toyos-Rodríguez, Celia, Uludağ, Inci, Valero-Calvo, David, Vural, Elif, Vural, İsmail Mert, Yence, Merve, Yücel, Çigdem, Zia, Muhammad Abid, and Zor, Erhan

Published
2024
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61. Potentiometric Sensor Based on Layered Pillar[6]arene—Copper Composite.

Author

Sorvin, Michail, Galimzyanova, Guzeliya, Evtugyn, Vladimir, Ivanov, Alexey, Shurpik, Dmitry, Stoikov, Ivan, and Evtugyn, Gennady

Subjects
ATOMIC emission spectroscopy, SURFACE plasmon resonance, CARBON electrodes, POLYMERIZED ionic liquids, DETECTORS, POLYANILINES, COPPER ions
Abstract

A solid-contact potentiometric sensor has been developed on the basis of glassy carbon electrode covered with electropolymerized polyaniline and alternatively layered pillar[6]arene and Cu2+ ions films. The assembly of the surface layer was confirmed by surface plasmon resonance measurements. The number of deposited layers was selected to reach better analytical characteristics for Cu2+ determination. It was shown that better results were achieved by using five layers, the upper one consisting of the macrocycle. The addition of covering layers for polyelectrolytes (Nafion, poly(styrene sulfonate)) and Cu2+ ions did not improve sensor performance. The potentiometric sensor made it possible to determine Cu2+ ions in neutral and weakly acidic media with a linear range of the concentrations, from 3.0 μM to 10.0 mM (limit of detection 3.0 μM). The applicability of the sensor in real sample assays was confirmed by the determination of Cu2+ ions in copper vitriol, Bordeaux mixture, and polyvitamin-mineral pills of "Complivit" during an atomic emission spectroscopy analysis. [ABSTRACT FROM AUTHOR]

Published
2023
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77. Metallo-Supramolecular Coordination Polymers Based on Amidopyridine Derivatives of Pillar[5]arene and Cu(II) and Pd(II) Cations: Synthesis and Recognition of Nitroaromatic Compounds

Author

Shurpik, Dmitriy N., primary, Aleksandrova, Yulia I., additional, Rodionov, Alexander A., additional, Razina, Elena A., additional, Gafurov, Marat R., additional, Vakhitov, Iskander R., additional, Evtugyn, Vladimir G., additional, Gerasimov, Alexander V., additional, Kuzin, Yurii I., additional, Evtugyn, Gennady A., additional, Cragg, Peter J., additional, and Stoikov, Ivan I., additional

Published
2021
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83. Flow-Through Electrochemical Biosensor with a Replaceable Enzyme Reactor and Screen-Printed Electrode for the Determination of Uric Acid and Tyrosine.

Author

Stoikov, Dmitrii, Ivanov, Alexey, Shurpik, Dmitriy, Stoikov, Ivan, and Evtugyn, Gennady

Subjects
BIOSENSORS, TYROSINE, CARBON electrodes, METHYLENE blue, CARBON-black, QUINONE, URIC acid
Abstract

A flow-through biosensor has been developed and manufactured by 3D printing from poly(lactic acid). Uricase or tyrosinase were immobilized on the inner walls of the reactor cell and the concentrations of the reaction products, i.e., hydrogen peroxide in the case of uricase and quinone product of the tyrosine oxidation in the case of tyrosinase, were monitored in the amperometric mode. The screen-printed electrode modified with carbon black, pillar[5]arene and electropolymerized thionine and methylene blue was separated from the enzyme layer by 0.1 mm gap and used as a biosensor transducer. The components of the modifier layer exerted a synergetic effect and increased the cathodic current up to seven times compared to electrodes modified with individual components, increasing the sensitivity of the analysis. In the optimal conditions, biosensor allowed the determination of 1 × 10−7 to 1 × 10−5 M uric acid and 2 × 10−7 to 1 × 10−5 M tyrosine. The biosensors analyzed spiked samples of blood serum and urine and provided recoveries from 95 to 110%. Easy mounting of the flow-through cell and low cost of the replaceable parts make promising future application of the biosensor for routine clinical assays. [ABSTRACT FROM AUTHOR]

Published
2022
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88. 8. Nanomaterials in the Assembly of Electrochemical DNA Sensors

Author

Dykman, Lev, Khlebtsov, Nikolai, Shchyogolev, Sergei, Goryacheva, Irina, Rusanova, Tatyana, Smirnova, Tatiana, Zhelobitskaya, Elena, Brainina, Khiena, Stozhko, Natalia, Bukharinova, M., Vikulova, E., Ziyatdinova, Guzel, Budnikov, Herman, Evtugyn, Gennady, Porfireva, Anna, Hianik, Tibor, Dmitrienko, Stanislava, Apyari, Vladimir, Grazhulene, Svetlana, Red'kin, A., Pirogov, Andrey, and Sumina, Elena

Published
2018
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