Curcumin Electroanalysis at a Disposable Graphite Electrode

Biosensors, Год журнала: 2025, Номер 15(3), С. 137 - 137

Опубликована: Фев. 23, 2025

Curcumin (CU, turmeric), a polyphenolic phytochemical that is largely used as food spice, has benefits for human health, which have led to increased interest in its therapeutic applications and analysis from different matrices. The two guaiacol moieties of CU are responsible antioxidant properties allow voltammetric quantification. Cyclic differential pulse voltammetry (DPV) investigations at single-use pencil graphite electrode (PGE) emphasized complex pH-dependent processes, involving an equal number protons electrons. Theoretical calculations predicted folded geometry the β-diketone conformers, interact with PGE surface, exposing electroactive only one aromatic ring. Gibbs energy variations structures involved electro-oxidation theoretical electrochemical potential values were calculated. CU’s DPV cathodic peak intensity recorded HB-type 0.05 mol × L−1 H2SO4 varied linearly range 5.00 10−8–5.00 10−6 CU. method’s detection quantification limits 2.12 10−8 6.42 L−1, respectively. practical applicability developed method, successfully tested by assessment dietary supplements, provided recovery 99.28 ± 2.04%.

Язык: Английский

Cutting-Edge MoS2-Based Biosensing Platforms for Detecting Contaminants in Food Samples

TrAC Trends in Analytical Chemistry, Год журнала: 2025, Номер unknown, С. 118239 - 118239

Опубликована: Март 1, 2025

Язык: Английский

Molybdenum disulfide quantum dots for rapid fluorescence detection of glutathione and ascorbic acid

Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy, Год журнала: 2024, Номер 326, С. 125189 - 125189

Опубликована: Сен. 23, 2024

Язык: Английский