Solvent and Substituent Effect on Selectivity of Triphenylether-Based Ionophores: A Voltammetric Study

The past two decades have seen considerable attention given to chemical sensing due to its quick, reproducible, and accurate results. These are extensively used for the detection of cations and anions in different environmental matrices. Organic-molecule-based sensors have proved to be a great promising tool in determining target species. This communication demonstrates the use of triphenylether derivatives (L1–L4) as receptors for the sensing of cations and anions, using voltammetry as a sensing tool. The effect of the oxidative/reductive nature of the ionophores and, hence, their selectivity behavior was studied in MeCN and MeOH solvents. Three receptors (L2–L4) responded selectively towards cyanide ions following the intramolecular charge-transfer mechanism, while sensing in the case of L1 was not studied because it lacked a proper cavity size.

Voltammetric Study of the Total Activity of Antioxidants in the Blood Serum of Patients with Neurological Diseases

One of the main directions in the development of modern electroanalytical chemistry is the development of new effective methods for research and analysis of biological objects, particularly, human blood serum. The creation of new electrochemical sensors is a promising approach, which has determined several main directions in applied voltammetry in the field of chemical analytical control. In this work, the dynamics and parameters of total antioxidant activity of human serum blood of patients with chronic cerebral ischemia, during treatment with pharmaceutical drugs Mexidol, Cavinton Comfort, and Cytoflavin was tested by cathode voltammetry with a model process of oxygen electroreduction, using a new electrochemical sensor.

Spectroscopic, Voltammetric, DFT and Molecular Docking Studies of Copper (II) Complex of Carbothiohydrazide Derivative

In this work, the nature of complexation between copper and N′,2-bis((E)-2-hydroxybenzylidene) hydrazine-1-carbothiohydrazide (a promising metal sensing Schiff base with a marked biological activity) (H4L) has been investigated and experimentally characterized. The investigation includes spectroscopic tools as infrared spectra (FT-IR), XRD, thermal analysis (TG) spectra, ultraviolet spectra (UV) in addition to cyclic voltammetric study. Quantum chemical calculations using density functional theory (DFT) used to predict the structural properties of the complex under investigation and to aid in the explanation of the electronic spectra of the complex. In addition to that, the Molecular docking for the complex under investigation with the 2ylh target protein have been conducted in order to check the biological activity of the complex.