The Electrochemical Evaluation of the Antioxidant Activity of Substituted Tetraphenylporphyrins

Tesakova, Mariya V.; Parfenyuk, V. I.

doi:10.1134/s1023193517110155

Cited by 12 publications

(11 citation statements)

References 10 publications

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“…Currently, porphyrins and metalloporphyrins are used in many technical applications including, catalysts [9], solar cells [10], sensors [11], supramolecular chemistry [12], photosensitizers in photodynamic therapy (PDT) [13], photocatalysts [14], semiconductors, [15] and nonlinear optics [16]. Moreover, the past decade has witnessed intense research devoted to the antioxidant, antibacterial and antifungal activities of porphyrin species [17][18][19][20][21][22]. It should also be noted that our research group has published in recent years a number of works on the use of magnesium(II) porphyrin complexes as antibacterial agents [23,24].…”

Section: Introductionmentioning

confidence: 99%

New DMAP meso-arylporphyrin Magnesium(II) complex. Spectroscopic, Cyclic voltammetry and X-ray molecular structure characterization. DFT, DOS and MEP calculations and Antioxidant and Antifungal activities

Fradi

Noureddine

Taheur

et al. 2021

Journal of Molecular Structure

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Section: Introductionmentioning

confidence: 99%

New DMAP meso-arylporphyrin Magnesium(II) complex. Spectroscopic, Cyclic voltammetry and X-ray molecular structure characterization. DFT, DOS and MEP calculations and Antioxidant and Antifungal activities

Fradi

Noureddine

Taheur

et al. 2021

Journal of Molecular Structure

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“…[40] Ряд наших недавних исследований посвящен электрохимическим характеристикам электрополимеризованных пленок амино-замещенных тетрафенилпорфиринов и их металлокомплексов. [4,[41][42][43][44][45][46] В настоящей работе представлены результаты исследования электрохимического осаждения и физико-химических свойств порфириновых пленок, осажденных на стеклоуглероде, платине, золоте и ITO-электродах на основе хлоридов Mn(III) 5,10,15,20-тетракис(3-аминофенил) порфина и Mn(III) 5,10,15,20-тетракис(4-аминофенил) порфина в диметилсульфоксиде (ДМСО), дихлорметане (ДХМ) и этаноле. Процесс формирования полипорфириновых пленок на базе указанных прекурсоров происходит с использованием электрохимического метода и метода кварцевого микробаланса.…”

Section: Introductionunclassified

Electrodeposition and Characterization of Polyporphyrin Films Based on Mn Complexes of Amino-substituted Tetraphenylporphyrins

Parfenyuk¹,

Tesakova²,

Chulovskaya³

et al. 2019

MHC

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В работе представлены результаты исследования электрохимического осаждения и физико-химических свойств полипорфириновых пленок, осажденных на стеклоуглероде, платине, золоте и ITO-электродах из дихлорметана (ДХМ), этанола и диметилсульфоксида (ДМСО). В качестве прекурсоров использованы хлориды Mn(III) 5,10,15,20-тетракис(3-аминофенил)порфина и Mn(III) 5,10,15,20-тетракис(4-аминофенил)порфина. Показано, что из ДМСО полипорфириновая пленка формируется в области потенциалов электровосстановления кислорода. В ДХМ и этаноле образование пленок на рабочих электродах в процессе электроокисления порфирина-мономера наблюдается в области потенциалов от 0 до +2 В. Процесс электрополимеризации изучен с использованием метода кварцевого микробаланса. Прирост массы пленки MnClT(3-NH 2 Ph)P при осаждении из ДХМ в потенциостатическом режиме в 1,9 раза больше, чем в потенциодинамическом. Поверхность пленок изучена с использованием метода сканирующей электронной микроскопии. Определено количество электронов, участвующих в процессе электрополимеризации. В работе подробно исследованы электрохимические свойства MnClT(3-NH 2 Ph)P и MnClT(4-NH 2 Ph)P в растворах ДМСО и особенности электрохимического осаждения пленок с использованием супероксид анион-радикала. На Pt, ITO и Au электродах происходит формирование полипорфириновой пленки, ассоциированное с пиком электровосстановления кислорода. Наблюдаемые нами изменения на циклических вольтамперограммах растворов порфиринов в ДМСО, насыщенных кислородом, вероятно, указывают на формирование оксокомлексов, в которых металл приобретает устойчивую степень окисления. Материал электрода влияет на амплитуды токов RedОx процессов, величину прироста массы и процессы десорбции осажденного слоя. Скорость взаимодействия O 2 •с MnClT(4-NH 2 Ph)P более высокая, чем с MnClT(3-NH

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“…Nano and ultra-fine copper particles have been synthesized by novel electro-deposition method and the effect of electrolysis parameters on the morphology of copper particles has been studied. The effect of different additives on the electro-deposition of copper powder and its surface engineering has also been studied [31][32]. The effect of the anode material on the composition and dimensional characteristics of the nano-sized copper powder have been reported by V. Tesakova [32].…”

Section: Introductionmentioning

confidence: 99%

“…The effect of different additives on the electro-deposition of copper powder and its surface engineering has also been studied [31][32]. The effect of the anode material on the composition and dimensional characteristics of the nano-sized copper powder have been reported by V. Tesakova [32]. The effect of new additives like lanolin on the electro-deposition of copper powder has also been studied by S. Jafer [33] and coworkers.…”

Section: Introductionmentioning

confidence: 99%

Concentration-dependent electrochemical synthesis of quantum dot and nanoparticles of copper and shape-dependent degradation of methyl orange

Saini¹,

Pandey²

2017

Adv. Mater. Lett.

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Quantum dot of copper (Cu) and nanoparticles of copper and copper oxide (Cu2O, 6CuOCu2O, Cu3O4) were synthesized by electrochemical route using the tri-sodium citrate (TSC) and ascorbic acid as a capping and reducing agent. The synthesis was done at 3.2 V, 311 K and 15 V, 373 K using copper rod as a working electrode and platinum wire as a reference electrode. The electrochemical set up was kept under inert nitrogen-purged conditions. Cu nanoparticles were synthesized in large-scale for the first time by direct dissolution of Cu 2+ into the solution of capping agent from copper electrode in the electrochemical cell. Nanoparticles were characterized by using UV-visible absorption spectroscopy, scanning electron microscopy (SEM), transmission electron microscopy (TEM), and X-ray diffraction (XRD) techniques. High resolution TEM pictures showed the formation of different shapes of nanostructures such as spherical, dendrites and leaf-shape respectively. The copper nanoparticles in presence of 200 mM of ascorbic acid were obtained with sizes of 2.10 -4.81 nm in spherical shape and 24.5 -49.4 nm with 2.88 mM of ascorbic acid. At lower concentration, the particles were also obtained in leaf-shape with ascorbic acid. The leaf shape was also obtained with 250 mM of TSC. This new kind of synthesis method shows the excellent stability compared with that of another chemical method of copper nanoparticles. These particles were used for degradation of methyl orange. The kinetic study of methyl orange with leaf shape particle capping via TSC shows complete degradation of methyl orange in 120 min.

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The Electrochemical Evaluation of the Antioxidant Activity of Substituted Tetraphenylporphyrins

Cited by 12 publications

References 10 publications

New DMAP meso-arylporphyrin Magnesium(II) complex. Spectroscopic, Cyclic voltammetry and X-ray molecular structure characterization. DFT, DOS and MEP calculations and Antioxidant and Antifungal activities

New DMAP meso-arylporphyrin Magnesium(II) complex. Spectroscopic, Cyclic voltammetry and X-ray molecular structure characterization. DFT, DOS and MEP calculations and Antioxidant and Antifungal activities

Electrodeposition and Characterization of Polyporphyrin Films Based on Mn Complexes of Amino-substituted Tetraphenylporphyrins

Concentration-dependent electrochemical synthesis of quantum dot and nanoparticles of copper and shape-dependent degradation of methyl orange

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