Novel Hybrid Copper-Based Electrode for Non-Enzymatic Electrochemical Lactic Acid Sensing in Milk Samples DOI Creative Commons
Aroonsri Ngamaroonchote, Kullavadee Karn-orachai

Journal of The Electrochemical Society, Journal Year: 2024, Volume and Issue: 171(6), P. 067509 - 067509

Published: June 3, 2024

A novel developed non-enzymatic electrochemical sensor was designed for the detection of lactic acid (LA) in perishable products, with a focus on monitoring milk spoilage. The utilizes hybrid copper-based electrode consisting cuprous oxide (Cu 2 O), copper (CuO), and hydroxide (Cu(OH) ), which collectively contribute to enhanced performance through their synergistic effects. Cyclic voltammetric studies revealed distinct oxidation peaks associated LA detection, highlighting superior catalytic effect Cu O/CuO/Cu(OH) compared CuO alone. Further optimization metal loading surface led improve sensing properties. exhibited wide linear response range (0.25–7 mM), high sensitivity (817.66 μ A·mM −1 ·cm −2 low limit (0.25 mM). Selectivity tests indicated negligible interference from common dairy product constituents, while stability showed consistent over 3 week storage period (100% stability). practical usability demonstrated quantitative analysis pasteurized milk, recovery values ranging 99.7% 106.9%, confirming feasibility real sample analysis. multiphase presents promising platform sensitive reliable within industry.

Language: Английский

Tailoring spinel cobalt-oxide geometry for ultrahigh sensitive nonenzymatic electrocatalytic oxidation and sensing of glucose in batch injection analysis DOI

Yesudas K Yashly,

Sathesh P Sreeshma,

Saravana Kumar Tharinidevi

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 160611 - 160611

Published: Feb. 1, 2025

Language: Английский

Citations

2
Microwave-assisted rapid synthesis of GO/SnTe nanocomposite for electrochemical quantification of caffeine and pharmaceutical formulations DOI
Kalpana Kumar,

S. Munusamy,

P. Sugumar

et al.

Journal of Materials Science Materials in Electronics, Journal Year: 2024, Volume and Issue: 35(26)

Published: Sept. 1, 2024

Language: Английский

Citations

3
Bimetallic Nanoparticles as Electrochemical Labels in Immunosensors for the Detection of Biomarkers of Clinical Interest DOI Creative Commons
David Valero‐Calvo, Francisco J. Garcı́a Alonso, Alfredo de la Escosura‐Muñiz

et al.

Analysis & Sensing, Journal Year: 2024, Volume and Issue: 4(5)

Published: May 17, 2024

Abstract Electrochemical immunosensors have emerged in the last years as outstanding analytical systems for detection of analytes clinical interest. As alternative to traditional enzymatic labels, use nanoparticles and especially bimetallic ones has gained increased attention thanks their advantages related higher simplicity, stability sensitivity offered. Main routes such nanoparticle labels are based on i) dissolution into corresponding metal ions followed by voltammetric detection; ii) taking advantage electrocatalytic effect metals towards secondary reactions; iii) electrochemiluminescence properties.

Language: Английский

Citations

2
Optical Characteristics of a New Molecular Complex: “Nafion–Colloidal CdSe/CdS/ZnS Nanocrystals” DOI Open Access
Svetlana L. Timchenko, S. A. Ambrozevich, Evgenii N. Zadorozhnyi

et al.

Polymers, Journal Year: 2024, Volume and Issue: 16(14), P. 2092 - 2092

Published: July 22, 2024

Here, the optical properties of Nafion polymer membrane containing colloidal CdSe/CdS/ZnS nanocrystals embedded by diffusion have been studied. The a core/shell/shell appearance. All experiments were carried out at room temperature (22 ± 2) °C. A toluene solution was used to provide mobility active sulfone groups and embed inside membrane. process into proton exchange has resulted in new molecular complex “Nafion–colloidal nanocrystals”. kinetics embedding matrix investigated using luminescence analysis absorption spectroscopy techniques. rate approximately 4·10−3 min−1. presence centers proved independently laser emission spectroscopy. spectrum resulting contains intensity maxima wavelengths 538, 588, 643 700 nm. additional maximum observed nm wavelength not recorded original membrane, solvent or semiconductor nanoparticles. registered 634 with found be higher than secondary peak initial nanocrystals, which is important for practical use nanocrystals” systems. lines contained long time, upon its drying, show formation “Nafion membrane–nanocrystals”. Colloidal located represent an analog luminescent transducer.

Language: Английский

Citations

1
Novel Hybrid Copper-Based Electrode for Non-Enzymatic Electrochemical Lactic Acid Sensing in Milk Samples DOI Creative Commons
Aroonsri Ngamaroonchote, Kullavadee Karn-orachai

Journal of The Electrochemical Society, Journal Year: 2024, Volume and Issue: 171(6), P. 067509 - 067509

Published: June 3, 2024

A novel developed non-enzymatic electrochemical sensor was designed for the detection of lactic acid (LA) in perishable products, with a focus on monitoring milk spoilage. The utilizes hybrid copper-based electrode consisting cuprous oxide (Cu 2 O), copper (CuO), and hydroxide (Cu(OH) ), which collectively contribute to enhanced performance through their synergistic effects. Cyclic voltammetric studies revealed distinct oxidation peaks associated LA detection, highlighting superior catalytic effect Cu O/CuO/Cu(OH) compared CuO alone. Further optimization metal loading surface led improve sensing properties. exhibited wide linear response range (0.25–7 mM), high sensitivity (817.66 μ A·mM −1 ·cm −2 low limit (0.25 mM). Selectivity tests indicated negligible interference from common dairy product constituents, while stability showed consistent over 3 week storage period (100% stability). practical usability demonstrated quantitative analysis pasteurized milk, recovery values ranging 99.7% 106.9%, confirming feasibility real sample analysis. multiphase presents promising platform sensitive reliable within industry.

Language: Английский

Citations

0