Highly sensitive determination of paracetamol, uric acid, dopamine, and catechol based on flexible plastic electrochemical sensors

Zuo, Jiabao; Shen, Ying; Gao, Juanjuan; Song, Haiou; Z, Ye; Liang, Ying; Zhang, Shupeng

doi:10.1007/s00216-022-04157-6

Cited by 13 publications

(5 citation statements)

References 63 publications

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“…Additionally, the CV profile for the POMe/LiTFSI(50)-based actuator more closely resembles a rectangle, indicating a lower leakage current and improved capacitive characteristics. Furthermore, in the CV profile of POMe/LiTFSI(50)-based actuator, redox peaks are discernible around ±0.5 V, indicating that the actuator possesses the dual attributes of electric double layer capacitance and pseudocapacitance. − …”

Section: Results and Discussionmentioning

confidence: 98%

Ionic Liquid Crystal–Polymer Composite Electromechanical Actuators: Design of Two-Dimensional Molecular Assemblies for Efficient Ion Transport and Effect of Electrodes on Actuator Performance

Liu,

Yoshio

2024

ACS Appl. Mater. Interfaces

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We present the development of free-standing ionic liquid crystal–polymer composite electrolyte films aimed at achieving high-frequency response electromechanical actuators. Our approach entails designing novel layered ionic liquid-crystalline (LC) assemblies by complexing a mesomorphic dimethylphosphate with either a lithium salt or a room-temperature ionic liquid through the formation of ion-dipole interactions or hydrogen bonds. These electrolytes, exhibiting room-temperature ionic conductivities on the order of 10–4 S cm–1 and wide LC temperature ranges up to 77 °C, were successfully integrated into porous polymer networks. We systematically investigated the impact of ions and electrodes on the performance of ionic electroactive actuators. Specifically, the Li+-based liquid crystal–polymer composite actuator with PEDOT:PSS electrodes demonstrated the highest bending deformation, achieving a strain of 0.68% and exhibiting a broad frequency response up to 110 Hz, with a peak-to-peak displacement of 3 μm. In contrast, the ionic-liquid-based liquid crystal–polymer composite actuator with active carbon electrodes showcased a bending response at a maximum frequency of 50 Hz and a force generation of 0.48 mN, without exhibiting the back relaxation phenomenon. These findings offer valuable insights for advancing high-performance electromechanical systems with applications ranging from soft robotics to haptic interfaces.

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Section: Results and Discussionmentioning

confidence: 98%

Ionic Liquid Crystal–Polymer Composite Electromechanical Actuators: Design of Two-Dimensional Molecular Assemblies for Efficient Ion Transport and Effect of Electrodes on Actuator Performance

Liu,

Yoshio

2024

ACS Appl. Mater. Interfaces

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“…It not only regulates numerous physiological activities but also serves as an indicator for various disease diagnosis . Abnormal levels of DA may lead to various neurological disorders, such as epilepsy, Parkinson’s disease, Alzheimer’s disease, mania, and schizophrenia. − Moreover, DA as an intravenous medication may result in an elevation of blood pressure and heart rate . Therefore, it is necessary to establish a rapid and accurate sensing platform for detecting DA in clinical and medical diagnostics.…”

Section: Introductionmentioning

confidence: 99%

Bovine Serum Albumin Template-Mediated Fabrication of Ruthenium Dioxide/Multiwalled Carbon Nanotubes: High-Performance Electrochemical Dopamine Biosensing in Human Serum

Lei,

Zhao,

Asif

et al. 2024

Langmuir

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The presence of abnormal dopamine (DA) levels may cause serious neurological disorders, therefore, the quantitative analysis of DA and its related research are of great significance for ensuring health. Herein, the bovine serum albumin (BSA) template method has been proposed for the preparation of catalytically high-performance ruthenium dioxide/multiwalled carbon nanotube (RuO2/MWCNT) nanocomposites. The incorporation of MWCNTs has improved the active surface area and conductivity while effectively preventing the aggregation of RuO2 nanoparticles. The outstanding electrocatalytic performance of RuO2/MWCNTs has promoted the electro-oxidation of DA at neutral pH. The electrochemical sensing platform based on RuO2/MWCNTs has demonstrated a wide linear range (0.5 to 111.1 μM), low detection limit (0.167 μM), excellent selectivity, long-term stability, and good reproducibility for DA detection. The satisfactory recovery range of 94.7% to 103% exhibited by the proposed sensing podium in serum samples signifies its potential for analytical applications. The aforementioned results reveal that RuO2/MWCNT nanostructures hold promising aptitude in the electrochemical sensor to detect DA in real samples, further offering broad prospects in clinical and medical diagnosis.

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“…PEDOT:PSS is an extensively studied conductive polyelectrolyte complex with the structure of PEDOT-rich cores surrounded by a PSS-rich shell [ 21 ]. PEDOT:PSS has been used in the areas of thermoelectricity, organic photovoltaics, bioelectronics and sensing conductors [ 22 , 23 , 24 , 25 ] because of its high conductivity, appropriate stability and superior mechanical flexibility [ 26 , 27 ]. In the fabrication of electrochemical sensors, PEDOT:PSS could be used as conductive dispersant to enhance the dispersibility of other materials.…”

Section: Introductionmentioning

confidence: 99%

TiO2-MXene/PEDOT:PSS Composite as a Novel Electrochemical Sensing Platform for Sensitive Detection of Baicalein

Xue

Shi

Wang³

et al. 2023

Molecules

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In this work, TiO2-MXene/poly (3,4-ethylenedioxythiophene): poly(styrenesulfonate) (PEDOT:PSS) composite was utilized as an electrode material for the sensitive electrochemical detection of baicalein. The in-situ growth of TiO2 nanoparticles on the surface of MXene nanosheets can effectively prevent their aggregation, thus presenting a significantly large specific surface area and abundant active sites. However, the partial oxidation of MXene after calcination could reduce its conductivity. To address this issue, herein, PEDOT:PSS films were introduced to disperse the TiO2-MXene materials. The uniform and dense films of PEDOT:PSS not only improved the conductivity and dispersion of TiO2-MXene but also enhanced its stability and electrocatalytic activity. With the advantages of a composite material, TiO2-MXene/PEDOT:PSS as an electrode material demonstrated excellent electrochemical sensing ability for baicalein determination, with a wide linear response ranging from 0.007 to 10.0 μM and a lower limit of detection of 2.33 nM. Furthermore, the prepared sensor displayed good repeatability, reproducibility, stability and selectivity, and presented satisfactory results for the determination of baicalein in human urine sample analysis.

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Highly sensitive determination of paracetamol, uric acid, dopamine, and catechol based on flexible plastic electrochemical sensors

Cited by 13 publications

References 63 publications

Ionic Liquid Crystal–Polymer Composite Electromechanical Actuators: Design of Two-Dimensional Molecular Assemblies for Efficient Ion Transport and Effect of Electrodes on Actuator Performance

Ionic Liquid Crystal–Polymer Composite Electromechanical Actuators: Design of Two-Dimensional Molecular Assemblies for Efficient Ion Transport and Effect of Electrodes on Actuator Performance

Bovine Serum Albumin Template-Mediated Fabrication of Ruthenium Dioxide/Multiwalled Carbon Nanotubes: High-Performance Electrochemical Dopamine Biosensing in Human Serum

TiO2-MXene/PEDOT:PSS Composite as a Novel Electrochemical Sensing Platform for Sensitive Detection of Baicalein

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