ZIF-derived Co nanoparticles embedded into N-doped carbon nanotube composites for highly efficient electrochemical detection of nitrofurantoin in food

Li, Mingyan; Zhe, Taotao; Li, Ruixia; Bai, Feier; Jia, Peng; Xu, Zhihao; Wang, Xin; Bu, Tong; Wu, Haiyu; Wang, Li

doi:10.1016/j.foodchem.2023.135948

Cited by 17 publications

(1 citation statement)

References 32 publications

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“…Each curve has two obvious peaks at 1345.2 cm −1 and 1593.2 cm −1 , corresponding to the D band and the G band, respectively. The larger the ID/IG ratio, the greater the defects in graphene [31]. The ID/IG of GO is 0.75, and the ID/IG of GAs is 0.93, indicating the disappearance of the large sp 2 plane in the surface carbon skeleton and the formation of a large number of graphene sheets [32].…”

Section: Characterization Of Morphology and Composition Of Gas-aunpsmentioning

confidence: 99%

Development of a Novel H-Shaped Electrochemical Aptasensor for Detection of Hg2+ Based on Graphene Aerogels–Au Nanoparticles Composite

Peng,

Guo,

Liu

et al. 2023

Biosensors

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Hg2+, a highly toxic heavy metal, poses significant environmental and health risks, necessitating rapid detection methods. In this study, we employed an electrochemical aptasensor for rapid and sensitive detection of Hg2+ based on DNA strands (H2 and H3) immobilized graphene aerogels-Au nanoparticles (GAs-AuNPs) hybrid recognition interface and exonuclease III (Exo III)-mediated cyclic amplification. Firstly, Gas-AuNPs were modified on the surface of the ITO electrode to form a sensing interface to increase DNA loading and accelerate electron transfer. Then, DNA helper was generated with the addition of Hg2+ via Exo III-mediated cycling. Finally, the hairpin structures of H2 and H3 were opened with the DNA helper, and then the methylene blue (MB) functionalized DNA (A1 and A2) combined with the H2 and H3 to form an H-shaped structure. The current response of MB as an electrochemical probe was proportional to the concentration of Hg2+. Under optimal conditions, the aptasensor showed excellent performance for Hg2+, achieving a linear range from 1 fM to 10 nM and a detection limit of 0.16 fM. Furthermore, the aptasensor was used to detect Hg2+ in spiked milk samples, achieving a high recovery rate and demonstrating promising application prospects.

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Section: Characterization Of Morphology and Composition Of Gas-aunpsmentioning

confidence: 99%

Development of a Novel H-Shaped Electrochemical Aptasensor for Detection of Hg2+ Based on Graphene Aerogels–Au Nanoparticles Composite

Peng,

Guo,

Liu

et al. 2023

Biosensors

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Selective detection of nitrofurantoin by histidine‐capped silver nanoclusters with blue luminescence

et al. 2023

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In view of the significance of nitrofurantoin, there is an urgent need for efficient analytical methods for accurate detection of nitrofurantoin. Considering their superior fluorescence performance and rarity of reports regarding nitrofurantoin detection by fluorescent silver nanoclusters (Ag NCs), Ag NCs with good stability and uniform size were synthesized through a simple method by protection of histidine (His) and reduction of ascorbic acid (AA). Based on the quenching by nitrofurantoin, Ag NCs were applied successfully in the detection of nitrofurantoin with high sensitivity. In the range of 0.5–150 μM, a linear relationship was found between ln(F0/F) and nitrofurantoin amounts. Static quenching and inner filter effect were proved to be the main quenching mechanisms. Significantly superior selectivity and satisfactory recovery results in bovine serum indicate that Ag NCs provide a better choice for nitrofurantoin detection.

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Unlocking the potential of bismuth oxybromide microflowers supported silver nanosphere as a SERS platform for detection of nitrofurantoin

Kokulnathan,

Arun Kumar,

Wang

et al. 2025

Applied Surface Science

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ZIF-derived Co nanoparticles embedded into N-doped carbon nanotube composites for highly efficient electrochemical detection of nitrofurantoin in food

Cited by 17 publications

References 32 publications

Development of a Novel H-Shaped Electrochemical Aptasensor for Detection of Hg2+ Based on Graphene Aerogels–Au Nanoparticles Composite

Development of a Novel H-Shaped Electrochemical Aptasensor for Detection of Hg2+ Based on Graphene Aerogels–Au Nanoparticles Composite

Selective detection of nitrofurantoin by histidine‐capped silver nanoclusters with blue luminescence

Unlocking the potential of bismuth oxybromide microflowers supported silver nanosphere as a SERS platform for detection of nitrofurantoin

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