One step construction of an electrochemical sensor for melamine detection in milk towards an integrated portable system

An, Qi-Qi; Feng, Xun; Zhou, Zhen-Fan; Zhan, Tao; Lian, Sifeng; Zhu, Jianming; Han, Guo‐Cheng; Chen, Zhencheng; Kraatz, Heinz‐Bernhard

doi:10.1016/j.foodchem.2022.132403

Cited by 33 publications

(8 citation statements)

References 35 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…2A, there are a large number of carbon particles uniformly distributed on the surface of SPCE. Presumably, the presence of S element (0.31%) is the result of the activation of SPCE by sulfuric acid 27 (Fig. 2D).…”

Section: Resultsmentioning

confidence: 98%

Synergistic Amplification Signal Based on CoNPs and Melamine for Simultaneous Quantification of Epinephrine and Serotonin

Shan¹,

Feng²,

Han³

et al. 2023

J. Electrochem. Soc.

Self Cite

View full text Add to dashboard Cite

Here we report an electrochemical sensor for the detection of epinephrine (EP) and serotonin (5-HT), two important neurotransmitters in the mammalian central nervous system, which are also present in serum. Their concentration will affect the psychological and physiological activities of the human body, especially in regulating emotions. Therefore, it is very important to detect EP and 5-HT simultaneously. Herein, cobalt nanoparticles (CoNPs) and melamine (MEL) were deposited on a glassy carbon electrode (GCE) by cyclic voltammetry, resulting in an electrochemical sensor (MEL/CoNPs/GCE) that allowed the detection of both EP (0.23 V vs. Ag/AgCl) and 5-HT (0.38 V vs. Ag/AgCl). Square wave voltammetry measurements allowed us to establish a linear range of EP and 5-HT in the range of 5.00 to 500.00 μmol·L-1, with a limit of detection of 1.60 μmol·L-1 for EP, and of 2.52 μmol·L-1 for 5-HT. The detection sensitivity were 1.38 and 1.62 μA·μM-1·cm-2 for EP and 5-HT. Finally, the sensor also was used to detect serum with a recovery of 92.8% to 98.2% for EP, 98.7% to 99.0% for 5-HT, with RSD of 3.3%, indicated that it can be used for the rapid and simultaneous detection of EP and 5-HT.

show abstract

Section: Resultsmentioning

confidence: 98%

Synergistic Amplification Signal Based on CoNPs and Melamine for Simultaneous Quantification of Epinephrine and Serotonin

Shan¹,

Feng²,

Han³

et al. 2023

J. Electrochem. Soc.

Self Cite

View full text Add to dashboard Cite

show abstract

“…An et al [ 63 ] reported a simple sensor for MEL detection in milk. Due to the low electrochemical activity of MEL, ferrocene glutathione (Fc-ECG) was used as an electron transfer medium to assist SPCE in the detection of MEL.…”

Section: Chemical Contaminationmentioning

confidence: 99%

“… The process of making an Fc-ECG/SPCE sensor for MEL detection (Reprinted with permission from Ref. [ 63 ]. 2022, An et al).…”

Section: Figurementioning

confidence: 99%

Review of Electrochemical Biosensors for Food Safety Detection

et al. 2022

View full text Add to dashboard Cite

Food safety issues are directly related to people’s quality of life, so there is a need to develop efficient and reliable food contaminants’ detection devices to ensure the safety and quality of food. Electrochemical biosensors have the significant advantages of miniaturization, low cost, high sensitivity, high selectivity, rapid detection, and low detection limits using small amounts of samples, which are expected to enable on-site analysis of food products. In this paper, the latest electrochemical biosensors for the detection of biological contaminants, chemical contaminants, and genetically modified crops are reviewed based on the analytes of interest, electrode materials and modification methods, electrochemical methods, and detection limits. This review shows that electrochemical biosensors are poised to provide miniaturized, specific, selective, fast detection, and high-sensitivity sensor platforms for food safety.

show abstract

“…34 Bioactive materials are widely used in electrochemical sensing because of their high electronic conductivity and excellent synergistic properties. [35][36][37] Thiophene (TP, C 4 H 4 S) is an important class of five-membered heterocyclic compounds with good electroactivity and is widely used in molecularly imprinted sensors as an electron conductive polymer. [38][39][40] In particular, the combination of metal nanoparticles and bioactive materials to build electrochemical sensors can realize signal amplification through the synergy effect between them.…”

mentioning

confidence: 99%

A Novel Electrochemical Strategy for Chloramphenicol Detection in a Water Environment Based on Silver Nanoparticles and Thiophene

Lin

Feng

Chen

et al. 2022

J. Electrochem. Soc.

Self Cite

View full text Add to dashboard Cite

As a synthetic broad-spectrum antibiotic, chloramphenicol (CAP) is widely used in the prevention and treatment of bacterial diseases in aquaculture and animal husbandry, which might lead to severe water contamination and thus threaten our health. Herein, a novel electrochemical strategy for CAP detection is proposed with a sensor constructed based on the anodic peak (about -0.56 V) by modifying silver nanoparticles (AgNPs) and thiophene (TP) on a glassy carbon electrode (GCE) as a synergistic amplification unit with a simple step-by-step electrodeposition technique. Electrochemical methods, scanning electron microscopy, and X-ray energy dispersive spectroscopy were applied to characterize the as-prepared sensor. The TP/AgNPs/GCE sensor was used for CAP detection by DPV in the concentration range of 100.0 to 1600.0 µM, the limit of detection was 33.0 µM, and the sensitivity was 0.290 μA·µM-1·cm-2. In addition, the sensor has the advantages of simple preparation, low cost, good repeatability, stability, and anti-interference. It has been used for the detection of CAP in lake water with a recovery of 101.80 to- 104.85%, and the relative standard deviation was lower than 1.22%, which confirms that the sensor has good practicability.

show abstract

One step construction of an electrochemical sensor for melamine detection in milk towards an integrated portable system

Cited by 33 publications

References 35 publications

Synergistic Amplification Signal Based on CoNPs and Melamine for Simultaneous Quantification of Epinephrine and Serotonin

Synergistic Amplification Signal Based on CoNPs and Melamine for Simultaneous Quantification of Epinephrine and Serotonin

Review of Electrochemical Biosensors for Food Safety Detection

A Novel Electrochemical Strategy for Chloramphenicol Detection in a Water Environment Based on Silver Nanoparticles and Thiophene

Contact Info

Product

Resources

About