A novel electrochemical sensor based on magneto Au nanoparticles/carbon paste electrode for voltammetric determination of acetaminophen in real samples

Chiral magnetic-nanobiofluids for rapid electrochemical screening of enantiomers at a magneto nanocomposite graphene-paste electrode

“…Additionally, NC-GPE present different electrochemical improvements over conventional casted graphene electrodes, such as (i) robustness, (ii) renewable surface, (iii) small background current, (iv) miniaturization capability and (v) the possibility to behave as microelectrode array after optimizing the carbon polymer composition ratio, resulting in advanced transducers with enhanced electroanalytical performances (McCreery 2008), (Muñoz et al 2016a), (Muñoz et al 2015). A rather recent step in the area of modification of NC-GPEs, which is derived from the malleability of the polymeric matrix, is the integration of a magnet into the carbon paste for magneto mNC-GPE development (Haghshenas et al 2015), . This strategy opens up new alternatives to develop specific chiral magnetic-nanobiofluids (mNBFs) where the functionalized magnetic beads are collected after analyte interactions, pre-concentrating and stimulating the redox processes at the electrode surface as well as removing the possible matrix effect from complex samples.…”

Chemically modified carbon-based electrodes for the determination of paracetamol in drugs and biological samples

“…The non-carbon nanomaterials used in the electrochemical detection of PCT regroup a wide variety of materials ranging from metals, metal oxides, ceramics and polymers. Table 3 [ [18] , [55] , [56] , [57] , [58] , [59] , [60] , [61] , [62] , [63] , [64] , [65] , [66] , [67] , [68] , [69] , [70] , [71] , [72] , [73] ] lists the PCT sensors based on non-carbon nanostructure modified electrodes reported up to date.…”

“… Working electrode Modifier Methods Linearity LOD (μM) Application/Recovery (%) Advantages Disadvantages Refs. CPE ZSM-5/TiO 2 DPV 2.5–110 0.58 Human serum/98.21–102.35 C, D, E A, C, F [ 18 ] CPE Fe 2 O 3 DPV 2–150 1.16 Tablets/98.37–102.28 Serum/96.15–102.91 C, D, E B [ 55 ] CPE Au@Fe 3 O 4 DPV 0.1–70 0.045 Tablet/98.7–101.9 Human serum/97.5–102.9 A, E A, F [ 56 ] SPCE Bi 2 O 2 DPV 0.5–1250 0.03 Tablets/98-103 Urine/108-111 Human blood/85 A, B, C, D C, D [ 57 ] GCE Bi 2 O 3 CV 0.5–1500 0.2 Human blood/99.95–101 B, F C, D, E [ 58 ] SPCE CeO 2 DPV 0.09–100 0.051 Human serum/97.7–10...…”

“…Haghshenas et al. [ 56 ] employed magneto gold (AuNPs) to construct a CPE sensor for the detection of PCT. As illustrated in Fig.…”

Electrochemical one-step synthesis of hybrid nanocomposites Au/polymer

“…Recently, gold nanoparticles (AuNPs) are considered as an effective catalyst for chemical, electrochemical, and photochemical reactions [10][11][12]. In this case, the AuNPs can be present in the reaction medium either by themselves or in the volume of a solid inert carrier which can be a polymer film or other polymeric material.…”