An electrochemical sensor based on multiwall carbon nanotubes and molecular imprinting strategy for warfarin recognition and determination

A novel strategy to improve the sensitivity of antibiotics determination based on bioelectrocatalysis at molecularly imprinted polymer film electrodes

“…Taking the LOD as an example, the KA-PPY MIP film system based on bioelectrocatalysis was superior to ordinary MIP film systems without using nanomaterials (Karimian et al, 2013;Liu et al, 2011;Wang et al, 2014), and it was comparable to or at the same order of magnitude as those with nanoparticles (Han et al, 2014;Xue et al, 2014;Yu et al, 2014). Some MIP systems with incorporated gold nanoparticles and/or carbon nanotubes demonstrated extremely high sensitivity (Rezaei et al, 2014a(Rezaei et al, , 2014b, possibly because the high effective surface area of electrodes led to the increase in the amount of recognition sites in the MIP films, and the excellent conductivity of the systems resulted in better electron transfer of the probe with the underlying electrodes (Irshad et al, 2013;Sharma et al, 2013). We thus expect that the combination of our bioelectrocatalysis strategy with nanomaterials, especially gold nanoparticles and carbon nanotubes, might provide further improved analytical performance.…”

Molecular imprinting: perspectives and applications

“…Table 11 summarizes the related techniques and their analytical performances for drugs, organic molecules and biomacromolecules. 523,[526][527][528][529][530][531][532][533][534][535][536][537][538][539][540][541][542][543][544][545] For LSV and CV, their potentials linearly change with time. While the potential sweep of DPV and SWV comprises constant increments in either rectangular pulse or square oscillations, which can offer better sensitivity and signal-to-noise ratios than LSV and CV, since programmed current sampling is applied.…”

Highly selective differential pulse voltammetric determination of warfarin in pharmaceutical and biological samples using MnFe2O4/MWCNT modified carbon paste electrode

“…3 pharmaceuticals and biological fluids like urine and plasma [23][24][25] and it was diluted with water in a 10-mL volume flask. The test solution was transferred into the electrochemical cell to determine warfarin levels.…”