Detection behavior of phenolic compounds in a dual-electrode system assembled from track-etched membrane electrodes

Phytochemical Profile, Antioxidant and Cytotoxic Potential of Capsicum annuum (L.) Dry Hydro-Ethanolic Extract

“…Therefore, the CAE concentration is directly proportional to the secondary metabolite content (TPC and TF), antioxidant activity, and cytotoxicity. This correlation, more significant in the case of cancer cell lines, could be explained by considering the dual redox behavior of phenolic compounds [ 18 , 19 , 20 , 21 , 22 ]. High concentrations could have pro-oxidant and cytotoxic effects on cancer cell lines, exhibiting, at the same time, an antioxidant and protective action on normal cells [ 23 , 24 , 25 , 26 , 27 ].…”

“…At the same time, the PCA biplot from Figure 3 indicates the place of each extract concentration (100, 200, and 300 µg/mL) reported to these correlations. could be explained by considering the dual redox behavior of phenolic compounds [18][19][20][21][22]. High concentrations could have pro-oxidant and cytotoxic effects on cancer cell lines, exhibiting, at the same time, an antioxidant and protective action on normal cells [23][24][25][26][27].…”

Effectively Reinforced α-Bi2O3 MPs/PDA-RGO Sensor for Selective Modality Sensing of a Hazardous Phenolic Compound

“…Additionally, GO conserved its shape and morphology, which was appropriate for separating the desired pollutant without destroying the environment . Given that, GO has been widely applied in many fields, including energy storage devices, fuel cells, OER, HER, solar cells, electrochemical sensors, and photocatalysis. − However, GO has some limitations, such as poor water dispersibility, defect of conjugated sp 2 network, and agglomeration, possibly impacting charge transfer ability. − On this account, surface modification of GO is conjugated with a biomolecule combination, which can feasibly improve the dispersibility and good binding ability on the electrode surface and provide an excellent electrochemical platform. As a result, the self-polymerization capability of dopamine (PDA) in an alkaline environment modifies reduced graphene oxide (rGO), which functions as both a reducing agent to facilitate GO conversion and a capping agent to enhance the stability and ornamentation of the resulting rGO. , The PDA possesses various functional groups (hydroxyl/–OH, amine/–NH 2 , imine/CN), confers the chemically active functional groups, and provides excellent binding sites for various functional molecules. , The PDA will most likely bind with substrates via noncovalent interactions, including metal coordination, π–π stacking, and hydrogen bonding. , Furthermore, these functional groups electrochemically interact with 2,4,6-trichlorophenol, making TCP more selective on Bi 2 O 3 MPs/PDA-RGO/SPCE.…”