Sensitive detection of gallic acid in food by electrochemical sensor fabricated by integrating nanochannel film with nanocarbon nanocomposite DOI Creative Commons
Jiasheng Li,

Jiahui Lin,

Tao Luo

et al.

Frontiers in Nutrition, Journal Year: 2024, Volume and Issue: 11

Published: Nov. 12, 2024

Sensitive detection of gallic acid (GA) in foods is great significance for assessing the antioxidant properties products and ensuring consumer health. In this work, a simple electrochemical sensor was conveniently fabricated by integrating vertically-ordered mesoporous silica film (VMSF) with electrochemically reduced graphene oxide (ErGO) nitrogen quantum dots (NGQDs) nanocomposite, enabling sensitive GA food sample. A water-soluble mixture (GO) NGQDs drop-cast onto common carbon electrode, glassy electrode (GCE), followed rapid growth VMSF using an assisted self-assembly method (EASA). The negative voltage applied during facilitated situ reduction GO to ErGO. synergistic effects ErGO, NGQDs, nanochannels led nearly tenfold enhancement signal compared that obtained on electrodes modified either ErGO or alone. realized linear concentration range from 0.1 10 μM, 100 μM. limit (LOD), determined based signal-to-noise ratio three ( S / N = 3), found be 81 nM. Combined size-exclusion property VMSF, demonstrated high selectivity, making it suitable samples.

Language: Английский

A Molecularly Imprinted Electrochemical Sensor for Carbendazim Detection Based on Synergy Amplified Effect of Bioelectrocatalysis and Nanocomposites DOI Open Access
Wenjing Lian, Xinyu Zhang,

Yongbin Han

et al.

Polymers, Journal Year: 2025, Volume and Issue: 17(1), P. 92 - 92

Published: Jan. 1, 2025

The highly selective and sensitive determination of pesticide residues in food is critical for human health protection. Herein, the specific selectivity molecularly imprinted polymers (MIPs) was proposed to construct an electrochemical sensor detection carbendazim (CBD), one famous broad-spectrum fungicides, by combining with synergistic effect bioelectrocatalysis nanocomposites. Gold nanoparticle-reduced graphene oxide (AuNP-rGO) composites were electrodeposited on a polished glassy carbon electrode (GCE). Then MIP films electropolymerized surface nanolayer using CBD as template molecule o-phenylenediamine (OPD) monomer. sensitivity heterogeneous structure greatly amplified AuNP-rGO bioelectrochemical oxidation glucose, which catalyzed glucose oxidase (GOD) help mediator underlying solution. developed showed high selectivity, good reproducibility, excellent stability towards linear range from 2.0 × 10−9 7.0 10−5 M, limit (LOD) 0.68 nM (S/N = 3). expected system would provide new idea development simple sensors (MIESs).

Language: Английский

Citations

3
MOF Etching-Induced NiCo-Embedded Hollow N-Doped Carbon Nanocube for Enhanced Ratiometric Molecularly Imprinted Electrochemical Sensing of Carbendazim DOI

Linbo Deng,

Shuya Xue,

Li Li

et al.

Inorganic Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: March 29, 2025

Metal-organic framework (MOF)-derived carbon materials are commonly used as sensing materials, but their limited accessibility to active sites and specific surface area restrict applications. In this study, we proposed a simple method involving facile tannic acid etching calcination create NiCo-embedded hollow N-doped nanocubes (NiCo@HNC) using MOFs sacrificial templates. The resulting NiCo@HNC material has large area, improved mass transport channels, enhanced exposure of electroactive due its unique structure high porosity, leading electrocatalytic activity. Moreover, with the utilization substrate dopamine functional monomer, ratiometric molecularly imprinted electrochemical sensor was developed for selective sensitive detection carbendazim (CBZ). This demonstrated wide linear range 0.0003-10 μM low limit 0.1 nM. addition, utilized accurate quantification CBZ in actual carrot/strawberry samples recovery 96.0-103.0%, indicating potential practical application.

Language: Английский

Citations

0
Biodegradation performance of azo dyes based on Fe-Mn@C dual-template molecularly imprinted sensor DOI

Qikai Fu,

Deliang Guo, Xiaoyu Zhang

et al.

Journal of Environmental Sciences, Journal Year: 2025, Volume and Issue: unknown

Published: March 1, 2025

Language: Английский

Citations

0
Construction of a ratiometric electrochemical sensor for bisphenol A detection by coupling nonionic surfactant-decorated conductive carbon black with ferricyanide probe DOI

Zong-Xian Zhu,

Xuan Zhang

Talanta, Journal Year: 2024, Volume and Issue: 283, P. 127084 - 127084

Published: Oct. 21, 2024

Language: Английский

Citations

1
Ratiometric Electrochemical Detection of Interleukin-6 Using Electropolymerized Methylene Blue and a Multi-Walled Carbon-Nanotube-Modified Screen-Printed Carbon Electrode DOI Creative Commons
Zhuo Liu, Fengyu Liu, Chaofan Wang

et al.

Biosensors, Journal Year: 2024, Volume and Issue: 14(10), P. 457 - 457

Published: Sept. 25, 2024

Herein, we report a ratio-based electrochemical biosensor for the detection of interleukin-6 (IL-6). We electropolymerized methylene blue (MB) on surface screen-printed carbon electrodes; introduced an internal reference signal probe; modified carboxylate multi-walled nanotubes electrode to increase electrochemically active area; and finally linked amino-modified IL-6 aptamer through Schiff base reaction, with bovine serum albumin (BSA) added mask non-specific adsorption. After adding samples, I

Language: Английский

Citations

0
Layered double hydroxide nanozyme (LDHzyme)-assisted high-performance electrochemical analysis of organ transplant therapeutic drug concentration DOI

Z Li,

Meng Yin, Xiaoxue Wang

et al.

Microchemical Journal, Journal Year: 2024, Volume and Issue: 207, P. 111969 - 111969

Published: Oct. 22, 2024

Language: Английский

Citations

0
Sensitive detection of gallic acid in food by electrochemical sensor fabricated by integrating nanochannel film with nanocarbon nanocomposite DOI Creative Commons
Jiasheng Li,

Jiahui Lin,

Tao Luo

et al.

Frontiers in Nutrition, Journal Year: 2024, Volume and Issue: 11

Published: Nov. 12, 2024

Sensitive detection of gallic acid (GA) in foods is great significance for assessing the antioxidant properties products and ensuring consumer health. In this work, a simple electrochemical sensor was conveniently fabricated by integrating vertically-ordered mesoporous silica film (VMSF) with electrochemically reduced graphene oxide (ErGO) nitrogen quantum dots (NGQDs) nanocomposite, enabling sensitive GA food sample. A water-soluble mixture (GO) NGQDs drop-cast onto common carbon electrode, glassy electrode (GCE), followed rapid growth VMSF using an assisted self-assembly method (EASA). The negative voltage applied during facilitated situ reduction GO to ErGO. synergistic effects ErGO, NGQDs, nanochannels led nearly tenfold enhancement signal compared that obtained on electrodes modified either ErGO or alone. realized linear concentration range from 0.1 10 μM, 100 μM. limit (LOD), determined based signal-to-noise ratio three ( S / N = 3), found be 81 nM. Combined size-exclusion property VMSF, demonstrated high selectivity, making it suitable samples.

Language: Английский

Citations

0