Electro fabrication of molecularly imprinted sensor based on Pd nanoparticles decorated poly-(3 thiophene acetic acid) for progesterone detection

Popcorn‐Derived Porous Carbon Based Electrochemical Sensor for Simultaneous Determination of Hydroquinone, Catechol and Nitrite

“…To investigate the solution resistance and charge transfer resistance at the electrode/electrolyte, electrochemical impedance spectroscopy (EIS) analysis tests were carried out. [56][57][58] Figure 3c is the Nyquist curves of bare GCE and PPC-900/GCE in a 5.0 mM [Fe(CN) 6 ] 3À /4À containing 0.1 M PBS (pH 7.0). The EIS values for bare GCE and PPC-900/GCE are 780 Ω and 518 Ω respectively.…”

Carbon Dots Conjugated Antibody as an Effective FRET-Based Biosensor for Progesterone Hormone Screening

“…Additionally, molecularly imprinted polymers (MIPs)-based approaches have produced many opportunities for the detection, quantification and removal of estrogenic steroid hormones [ 11 , 12 , 13 ]. However, the molecular imprinting technology remained challenging and needs to be simplified in their synthesis, maintaining shape and porosity before and after template removal and binding procedures [ 1 , 14 ]. In this context, Table 1 represents the literature where CDs being exploited in progesterone determination in these past years are yet to be explored in an interference analysis or specificity performance with their analogous hormones or biomolecules such as β-estradiol, testosterone, cortisol, bisphenol A, etc.…”

Label free electrochemical detection of stress hormone cortisol using sulphur doped graphitic carbon nitride on carbon fiber paper electrode

“…9,10 Numerous analytical techniques are extensively used to test the purity and efficacy, including fluorescence and calorimetric assays 11 high performance liquid chromatography, 12 enzymelinked immunosorbent assay, 12,13 spectrophotometry, 14 SPR 15 and electrochemical methods. 1,3,[16][17][18][19] All of the foregoing procedures, with the exception of electrochemical methods, require arduous, time-consuming steps, specialised apparatus, and expert workers. The majority of pharmacological compounds are electrochemically active, and electrochemical methods can detect and identify them even in biological fluids.…”

“…Reduced selectivity, electrode fouling, poor repeatability, excessive over potential, and slow electrode kinetics, for example, are frequently linked with bare electrodes. Electrodes are frequently modified with noble metals such as Au, [20][21][22] Pt 23,24 Ru, 25,26 and Pd 17,27 to boost the catalytic activity through good conductivity in order to overcome these shortcomings. The change also helps to prevent fouling layers from forming.…”