Deep eutectic solvents synthesis of perovskite type cerium aluminate embedded carbon nitride catalyst: High-sensitive amperometric platform for sensing of glucose in biological fluids

MoS2 Sphere/2D S-Ti3C2 MXene Nanocatalysts on Laser-Induced Graphene Electrodes for Hazardous Aristolochic Acid and Roxarsone Electrochemical Detection

“…Electrochemical impedance spectroscopy (EIS) was adopted to measure the charge transfer resistance ( R ct ) of LGE, Ti 3 C 2 /LGE, S-Ti 3 C 2 /LGE, MoS 2 /LGE, and MoS 2 /S-Ti 3 C 2 /LGE in 0.1 M KCl containing 5 mM Fe­(CN) 6 3–/4– as shown in Figure A. The inset shows Randle’s equivalent circuit, where R ct , R w , R s , and C dl are the charge transfer resistance, Warburg impedance, electrolyte resistance, and double-layer capacitance, respectively . The experimental R ct values were calculated for LGE (380 Ω), Ti 3 C 2 /LGE (270 Ω), S-Ti 3 C 2 /LGE (150 Ω), MoS 2 /LGE (90 Ω), and MoS 2 /S-Ti 3 C 2 /LGE (20 Ω).…”

“…The synergetic effects and more reactive sites in MoS 2 /S-Ti 3 C 2 /LGE could explain the increase in peak current. We used the Randles–Sevcik equation , shown in eq to calculate the electroactive surface area (EASA) of MoS 2 /S-Ti 3 C 2 /LGE, MoS 2 /LGE, S-Ti 3 C 2 /LGE, Ti 3 C 2 /LGE, and LGE. where I p and C 0 are the peak current (A) and concentration of the electroactive species (mol cm –3 ), respectively. n is the number of electrons exchanged in the redox process.…”

“…The extracted linear regression equation is I pa (μA) = −75.635 (υ 1/2 V s –1 ) – 1.1491 ( R 2 = 0.9900). As a result, the electrochemical behavior of AA at MoS 2 /S-Ti 3 C 2 /LGE appears to be a diffusion-controlled process …”

“…As a result, the electrochemical behavior of AA at MoS 2 /S-Ti 3 C 2 /LGE appears to be a diffusioncontrolled process. 49 Interference-free detection is important for using the proposed sensor in real analytical applications. At MoS 2 /S-Ti 3 C 2 /LGE, the task of simultaneous and interference-free detection of AA and ROX was accomplished as expected.…”

A comparison of conventional and advanced electroanalytical methods to detect SARS-CoV-2 virus: A concise review

“…When compared to the proposed conventional methods in section 4 , electrochemical investigations offer important advantages such as ease of design, low cost equipment, high sensitivity and selectivity, accuracy, fewer power requirements, and ease of integration inside microfluidic devices ( Unlüer et al, 2020 ; Cioates, 2020 ). Biosensors and/or electrochemical sensors are widely used in pharmaceutical, environmental, and agricultural studies ( Ganesh et al, 2022a ; Ganesh and Kim, 2022b ; Rajaji et al, 2021 , 2022 ; Kundu et al, 2019 ). Electrochemical transducers are now used in the majority of biosensors because they are simple to create, user friendly, measurement is unaffected by interferences, and need modest reaction volumes.…”