Dual-signal intrinsic self-calibration ratio electrochemical sensor for glutathione based on silver nanoparticle decorated Prussian Blue analog

Xu, Zhenjuan; Li, Peipei; Liu, Xiang; Zhu, Xiaohua; Liu, Meiling; Zhang, Youyu; Yao, Shouzhuo

doi:10.1016/j.electacta.2022.141273

Cited by 19 publications

(11 citation statements)

References 35 publications

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“…Other nanomaterials of metal-containing compounds have been recently developed and tested as a sensing platform for sulfur-containing antioxidants, mainly l -cysteine. The analytical characteristics achieved are similar to metals and metal NP-based sensors excluding Co(II)/Al(III) layered double hydroxide/PGE for l -cysteine [ 87 ]; in situ electrodeposited Ag NPs/NiFe contained Prussian blue analog/GCE for glutathione [ 92 ] and ZnS/ZnAl 2 S 4 nanocomposite-CPE for l -methionine [ 93 ], for which impressive low detection limits and wide linear dynamic ranges including low concentration levels have been obtained. Layered double hydroxides, namely anion exchangers, have attracted attention due to adjustable composition, easiness of preparation, low cost, anion exchange properties, good catalytic activity, thermal stabilities, large surface-to-volume ratio, and strong adsorption ability [ 87 ].…”

Section: Electrochemical Sensors For S-containing Antioxidantsmentioning

confidence: 99%

Recent Advances in Electrochemical Sensors for Sulfur-Containing Antioxidants

Ziyatdinova

Gimadutdinova

2023

Micromachines

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Sulfur-containing antioxidants are an important part of the antioxidant defense systems in living organisms under the frame of a thiol–disulfide equilibrium. Among them, l-cysteine, l-homocysteine, l-methionine, glutathione, and α-lipoic acid are the most typical representatives. Their actions in living systems are briefly discussed. Being electroactive, sulfur-containing antioxidants are interesting analytes to be determined using various types of electrochemical sensors. Attention is paid to the chemically modified electrodes with various nanostructured coverages. The analytical capabilities of electrochemical sensors for sulfur-containing antioxidant quantification are summarized and discussed. The data are summarized and presented on the basis of the electrode surface modifier applied, i.e., carbon nanomaterials, metal and metal oxide nanoparticles (NPs) and nanostructures, organic mediators, polymeric coverage, and mixed modifiers. The combination of various types of nanomaterials provides a wider linear dynamic range, lower limits of detection, and higher selectivity in comparison to bare electrodes and sensors based on the one type of surface modifier. The perspective of the combination of chromatography with electrochemical detection providing the possibility for simultaneous determination of sulfur-containing antioxidants in a complex matrix has also been discussed.

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Section: Electrochemical Sensors For S-containing Antioxidantsmentioning

confidence: 99%

Recent Advances in Electrochemical Sensors for Sulfur-Containing Antioxidants

Ziyatdinova

Gimadutdinova

2023

Micromachines

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“…The outstanding performance of this sensor is ascribed to the synergistic effects of N-Ti 3 C 2 T x and PANI, which improves the electrochemical properties of PTA nanomaterial. AuNP-PEDOT/GCE DPV 1.73 × 10 À 7 3 × 10 À 3 -1.5 × 10 À 2 [35] Ag/NiFe PBA/GCE DPV 1.2 × 10 À 10 5 × 10 À 9 -5 × 10 À 6 [36] AmÀ Au@Pt/GCE I-t 5.1 × 10 À 8 1 × 10 À 7 -1.1 × 10 À 5…”

Section: Sensing Performance Of Pta/gce For Gshmentioning

confidence: 99%

Ammonia Modified MXene/Aniline Copolymers Electrochemical Sensors for Ultrasensitive Sensing Glutathione

et al. 2022

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Herein, unique ammonia modified MXene/aniline copolymers (PTA) are prepared by facile and green electropolymerization with the rose-like ammonia modified MXene (N-Ti 3 C 2 T x ) and aniline to modify electrochemical sensor to detect GSH with high performance. Scanning electron microscopy (SEM), cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), and differential pulse voltammetry (DPV) characterizations show that the PTA copolymer exhibits a net-like structure and excellent electrochemical performance. It displays that the PTA can be regarded as an outstanding electrode nanomaterial for high-performance sensors. Moreover, the PTA/GCE biosensor is fabricated through one-step electropolymerization method for detecting glutathione. Under the optimum conditions, the limit of detection of the biosensor is calculated to be 5.21 × 10 À 14 mol L À 1 with a high sensitivity of 32.9 μA nmol À 1 L cm À 2 . At the same time, the biosensor displays excellent selectivity and stability. Furthermore, the fabricated PTA/GCE biosensor is applied to detect glutathione of plasma samples with good recoveries, indicating that the sensor has broad application prospects in the field of biological and medical analysis.

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“…Notably, the electrochemical analysis technology overcomes the above shortcomings and is widely favored by researchers. 4–8 As for electrochemical sensing platforms, the choice of electrode material is a key factor to obtain excellent electrocatalytic performance. Therefore, the predictable construction of innovative nanocomposites is the main way to improve the electrochemical response.…”

Section: Introductionmentioning

confidence: 99%