Screen-Printed Electrode-Based Sensing of l-Ascorbic Acid Using Metal–Organic Framework Supported Carbon–Palladium-Doped MXene Quantum Dots in Human Serum and Artificial Sweat DOI
Jose Paul, Jongsung Kim

ACS Applied Nano Materials, Journal Year: 2024, Volume and Issue: 7(22), P. 26032 - 26043

Published: Nov. 12, 2024

Carbon-doped MXene quantum dots (MNQDs) were synthesized through a hydrothermal reaction involving citric acid and ethylene diamine in the presence of MXene. Palladium nanoparticles subsequently incorporated into MNQDs integrated an iron-based metal–organic framework, forming MIL-PdMNQDs. The successful synthesis MIL-PdMNQDs was confirmed by PXRD, SEM, TEM, XPS, FTIR analyses. Modified glassy carbon screen-printed electrodes with used to measure l-ascorbic concentrations phosphate buffer solution, ranging from 10 100 nM. Cyclic voltammetry (CV) differential pulse (DPV) revealed linear anodic peak current between 52.05 82.44 μA, regression (R2) value 0.9885. In human serum diluted PBS (5 mL 95 PBS), MIL-PdMNQDs-SPE1 detected ascorbic 50 μM, illustrating DPV redox 124.39 152.54 R2 0.9901. Additionally, artificial sweat, sensor 1000 readings 11.132 64.83 μA 0.9903, demonstrating its selective sensing capability. limit detection (LOD) for using MIL-PdMNQDs-GCE determined be 4.705 SPE sensors exhibited high stability exceptional selectivity detection.

Language: Английский

Selective electrochemical sensing of dopamine via solid-state hydrothermal β-cyclodextrin-functionalized selenium quantum dots-embedded with multiwall carbon nanotubes DOI
Roopkumar Sangubotla, Jose Paul, Jongsung Kim

et al.

Applied Surface Science, Journal Year: 2025, Volume and Issue: 687, P. 162275 - 162275

Published: Jan. 2, 2025

Language: Английский

Citations

2
Overoxidized electropolymerized poly(pyrrole-1-propionic acid) on screen-printed graphene electrode-based electrochemical sensor for selective detection of dopamine neurotransmitters in the presence of norepinephrine and serotonin DOI Creative Commons

Jeerakit Thangphatthanarungruang,

Wichayaporn Kamsong,

Chanchai Charonpongsuntorn

et al.

Electrochemistry Communications, Journal Year: 2025, Volume and Issue: unknown, P. 107934 - 107934

Published: April 1, 2025

Language: Английский

Citations

0
Screen-Printed Electrode-Based Sensing of l-Ascorbic Acid Using Metal–Organic Framework Supported Carbon–Palladium-Doped MXene Quantum Dots in Human Serum and Artificial Sweat DOI
Jose Paul, Jongsung Kim

ACS Applied Nano Materials, Journal Year: 2024, Volume and Issue: 7(22), P. 26032 - 26043

Published: Nov. 12, 2024

Carbon-doped MXene quantum dots (MNQDs) were synthesized through a hydrothermal reaction involving citric acid and ethylene diamine in the presence of MXene. Palladium nanoparticles subsequently incorporated into MNQDs integrated an iron-based metal–organic framework, forming MIL-PdMNQDs. The successful synthesis MIL-PdMNQDs was confirmed by PXRD, SEM, TEM, XPS, FTIR analyses. Modified glassy carbon screen-printed electrodes with used to measure l-ascorbic concentrations phosphate buffer solution, ranging from 10 100 nM. Cyclic voltammetry (CV) differential pulse (DPV) revealed linear anodic peak current between 52.05 82.44 μA, regression (R2) value 0.9885. In human serum diluted PBS (5 mL 95 PBS), MIL-PdMNQDs-SPE1 detected ascorbic 50 μM, illustrating DPV redox 124.39 152.54 R2 0.9901. Additionally, artificial sweat, sensor 1000 readings 11.132 64.83 μA 0.9903, demonstrating its selective sensing capability. limit detection (LOD) for using MIL-PdMNQDs-GCE determined be 4.705 SPE sensors exhibited high stability exceptional selectivity detection.

Language: Английский

Citations

0