Electrochemical oxidation of curcuminoids: an experimental and computational investigation

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ID: 5126
2019
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Abstract
Curcuminoids, reported to have important biological properties, such as antioxidant, anti-Alzheimer, and antidiabetic properties, comprise curcumin (CRM; 1,7-bis [4-hydroxy-3-methoxyphenyl]-1,6-heptadiene-3,5-dione) and its derivatives demethoxycurcumin (DMC; (E,6E)-1-(3,4-dimethoxy-cyclohexyl)-7-(3,4-dimethoxyphenyl)hepta-1,6-diene-3,5- dione) and bisdemethoxycurcumin (BDMC; 1,7-bis[4-hydroxyphenyl]-1,6-heptadiene-3,5-dione). Their electrochemical oxidations are thoroughly explored by applying cyclic and differential pulse voltammetric techniques. The dependence of current intensities and potentials on pH, concentration, scan rate, and nature of the buffer was investigated. The outcome is supported by density functional theory computations indicating the transfer of 4-e? /H+ , 6-e? /H+ , and 8- e? /H+ couples involved in the oxidation mechanisms of CRM, DMC, and BDMC, respectively, leading to the formation of the same oxidized product.
Reference Key
zeynep2019electrochemicalturkish Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Zeynep KALAYCIOĞLU;Nurgül KARADAŞ;Mehmet Emin ÇINAR;Sibel AYŞIL ÖZKAN;Durişehvar ÖZER ÜNAL;Ayşegül GÖLCÜ;Fatma Bedia BERKER and
Journal turkish journal of chemistry
Year 2019
DOI
DOI not found
URL URL not found
Keywords
Cyclic voltammetry Density functional theory curcuminoids differential pulse voltammetry Langmuir–Blodgett nanobiosensor nanolithography close-packed silica colloids porous film biodetection

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