One-pot and surfactant-free synthesis of N-doped mesoporous carbon spheres for the sensitive and selective screening of small biomolecules

Wang, Yin; Dai, Qumei; Yang, Liting; Liu, Yang; Yu, Chengzhong; Yang, Cheng; Xu, Xuan

doi:10.1016/j.jelechem.2020.114462

Cited by 8 publications

(2 citation statements)

References 62 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In addition, in a 0.1 M PBS solution containing 80 µM UA, well-defined oxidation peaks are observed. The CV curve elucidates that UA is oxidized to a quinonoid form, and the corresponding oxidation pathway was presented in equation R3 [ 44 , 45 ]. Thus, the Pd/MCHS/GCE sensor demonstrates excellent ability for the simultaneous determination of the three analytes of interest.…”

Section: Resultsmentioning

confidence: 99%

A Novel Electrochemical Sensor Based on Pd Confined Mesoporous Carbon Hollow Nanospheres for the Sensitive Detection of Ascorbic Acid, Dopamine, and Uric Acid

Zhang,

Li,

Liu

et al. 2024

Molecules

View full text Add to dashboard Cite

In this study, we designed a novel electrochemical sensor by modifying a glass carbon electrode (GCE) with Pd confined mesoporous carbon hollow nanospheres (Pd/MCHS) for the simultaneous detection of ascorbic acid (AA), dopamine (DA), and uric acid (UA). The structure and morphological characteristics of the Pd/MCHS nanocomposite and the Pd/MCHS/GCE sensor are comprehensively examined using SEM, TEM, XRD and EDX. The electrochemical properties of the prepared sensor are investigated through CV and DPV, which reveal three resolved oxidation peaks for AA, DA, and UA, thereby verifying the simultaneous detection of the three analytes. Benefiting from its tailorable properties, the Pd/MCHS nanocomposite provides a large surface area, rapid electron transfer ability, good catalytic activity, and high conductivity with good electrochemical behavior for the determination of AA, DA, and UA. Under optimized conditions, the Pd/MCHS/GCE sensor exhibited a linear response in the concentration ranges of 300–9000, 2–50, and 20–500 µM for AA, DA, and UA, respectively. The corresponding limit of detection (LOD) values were determined to be 51.03, 0.14, and 4.96 µM, respectively. Moreover, the Pd/MCHS/GCE sensor demonstrated outstanding selectivity, reproducibility, and stability. The recovery percentages of AA, DA, and UA in real samples, including a vitamin C tablet, DA injection, and human urine, range from 99.8–110.9%, 99.04–100.45%, and 98.80–100.49%, respectively. Overall, the proposed sensor can serve as a useful reference for the construction of a high-performance electrochemical sensing platform.

show abstract

Section: Resultsmentioning

confidence: 99%

A Novel Electrochemical Sensor Based on Pd Confined Mesoporous Carbon Hollow Nanospheres for the Sensitive Detection of Ascorbic Acid, Dopamine, and Uric Acid

Zhang,

Li,

Liu

et al. 2024

Molecules

View full text Add to dashboard Cite

show abstract

“…Carbon-based materials, as modified electrode agents, have recently found a special place for themselves due to their unique properties such as green nature, cost-effectiveness, significant conductivity, wide potential range, and portable modification [47]. For example, hollow carbon spheres (HCSs) are appropriate options as effective catalyst materials in electroanalysis and electrochemical determination, owing to their good conductivity, large specific surface area, high surface permeability, chemical stability, and low density [48][49][50]. One of the surface modification methods is heteroatom doping, which can improve some properties of HCSs, such as increasing catalytic active sites, electrical conductivity, edge plane defect sites, and induction of synergistic impact [51].…”

Section: Introductionmentioning

confidence: 99%

Electrocatalytic response of nitrogen-doped hollow carbon spheres modified glassy carbon electrode for sulphite detection in water

Basande,

Beitollahi

2023

J. Electrochem. Sci. Eng.

View full text Add to dashboard Cite

In this work, the glassy carbon electrode (GCE) surface was modified with nitrogen-doped hollow carbon spheres (N-HCSs) to achieve a new electrochemical sulphite sensor (N-HCSs/GCE) in water samples. The N-HCSs were explored for electrocatalytic behavior through voltammetric approaches using a routine three-electrode system. The findings revealed an admirable efficiency for modified electrodes towards sulphite oxidation, highlighting the effectiveness of our as-produced sulphite sensor. The differential pulse voltammetry was utilized under obtained optimal circumstances to study the as-developed sensor, the results of which underlined linear electrochemical current in relation to sulphite concentration, with dynamic range as wide as 1.0-100.0 μM and limit of detection as narrow as 0.35 μM. Moreover, N-HCSs/GCE had commendable practical applicability for sensing sulphite present in real specimens with voltammetric techniques.

show abstract

Construction of hydrophilic 4-sulfocalix[6]arene–functionalized carbon nanotubes decorated with AuPt bimetallic nanodendrites

Qian,

He,

Zhang

et al. 2023

J Nanopart Res

View full text Add to dashboard Cite

One-pot and surfactant-free synthesis of N-doped mesoporous carbon spheres for the sensitive and selective screening of small biomolecules

Cited by 8 publications

References 62 publications

A Novel Electrochemical Sensor Based on Pd Confined Mesoporous Carbon Hollow Nanospheres for the Sensitive Detection of Ascorbic Acid, Dopamine, and Uric Acid

A Novel Electrochemical Sensor Based on Pd Confined Mesoporous Carbon Hollow Nanospheres for the Sensitive Detection of Ascorbic Acid, Dopamine, and Uric Acid

Electrocatalytic response of nitrogen-doped hollow carbon spheres modified glassy carbon electrode for sulphite detection in water

Construction of hydrophilic 4-sulfocalix[6]arene–functionalized carbon nanotubes decorated with AuPt bimetallic nanodendrites

Contact Info

Product

Resources

About