Detection of oxytetracycline in honey using SERS on silver nanoparticles

Fá, Alejandro González; Pignanelli, Fernando; López–Corral, Ignacio; Faccio, Ricardo; Juan, Alfredo; Nezio, María Susana Di

doi:10.1016/j.trac.2019.115673

Cited by 27 publications

(8 citation statements)

References 38 publications

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“…All spectra were recorded with a Fourier transform IR (FTIR)–near‐IR (NIR) Nicolet iS50 spectrometers (Thermo Scientific, Waltham, Massachusetts, USA) and samples were prepared in potassium bromide (KBr) discs. To this end, AgNPs were decanted from the solution by adding 0.3 mol L −1 potassium carbonate and centrifuged for 60 min (7000 rpm), by following the reported procedure 17 . After drying the precipitate in a vacuum desiccator for 24 h, 2 mg of AgNPs was mixed with 100 mg of KBr, ground into a fine powder, and pressed in a mechanical press to prepare the discs.…”

Section: Methodsmentioning

confidence: 99%

Green‐tea‐synthesized silver nanoparticles as a sensing platform for determination of tetracycline in honey samples

2021

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BACKGROUND Silver nanoparticles (AgNPs) can be easily obtained in aqueous solution by chemical reduction using appropriate reducing agents and stabilizers. The development of environmentally friendly methods using non‐toxic solvents and reagents has become an alternative for the synthesis of these particles and their future application as sensor probes for agricultural products. In this work, a straightforward method based on green tea extracts as reducing and capping agent is proposed for the synthesis of AgNPs, followed by their evaluation as a sensing platform for determination of tetracycline in honey samples. RESULTS Highly stable nanoparticles were easily obtained by combining green tea aqueous extracts and ultrasound irradiation for 2 min. The as‐synthesized AgNPs, spherical in shape and with average size of 8.5 nm, were evaluated for determination of tetracycline by following the changes on the localized surface plasmon resonance band at 450 nm induced by the presence of this antibiotic at pH 5.8. The method was successfully applied in the concentration range between 200 and 800 μg L−1 with R2 > 0.996 and limit of detection of 52.7 μg L−1. Multiple honey samples were analyzed, and the recovery values obtained ranged between 82.8% and 116%, with relative standard deviation values lower than 6.69%. CONCLUSION The results obtained demonstrate that the AgNPs synthesized using just green tea extracts represent a promising and sustainable alternative tool for the cost‐effective determination of tetracycline antibiotics in honey. © 2021 Society of Chemical Industry

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Section: Methodsmentioning

confidence: 99%

Green‐tea‐synthesized silver nanoparticles as a sensing platform for determination of tetracycline in honey samples

2021

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“…As another example of colloidal nanoparticle-based SERS, Fa et al [ 68 ] green-synthesized AgNPs to detect oxytetracycline (OTC) in honey samples. AgNPs, potassium carbonate, honey, and antibiotics were mixed and centrifuged.…”

Section: Detection Of Chemical Pollutantsmentioning

confidence: 99%

Nanotechnology in food and water security: on-site detection of agricultural pollutants through surface-enhanced Raman spectroscopy

2022

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Agricultural pollutants are harmful components threatening human health, wildlife, the environment, and the ecosystem. To avoid their exposure, developing prevention and detection systems with high sensitivity and selectivity is required. Most conventional methods, including molecular and chromatographic techniques, cannot be adopted for outdoor on-site detection even though they can provide sensitive and selective detection. Thus, detection platforms that can provide on-site detection via miniaturized and high throughput systems should be developed. As an alternative method, surface-enhanced Raman scattering (SERS) provides unique information about the substances in the presence of plasmonic nanostructures, and it can be portable with the use of portable detection systems and spectrometers. In this study, on-site detection of agricultural pollutants through SERS is reviewed. Three different types of agricultural pollutants were pointed out. On-site detection of biological pollutants, including bacteria and viruses, is reviewed as the first type of pollutant. As a second type, the detection of pesticides, antibiotics, and additives are focused on as chemical pollutants. The third group includes the detection of microplastics and also nanoparticles from the environment.

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“…However, these methods are limited to expensive equipment, long sample processing time, and specialized laboratory operations. 6,7 Over the last few years, multiple new analytical methods have been developed for OTC detection, including electrochemical (EC) methods, 8 photoelectrochemical (PEC) methods, 9 surface-enhanced Raman scattering (SERS), 10 fluorometry (FL), 11 and colorimetry (CL). 12 Among them, colorimetry has received considerable attention due to its advantages of rapidity, easy handling, low cost, and naked-eye readout.…”

Section: Introductionmentioning

confidence: 99%

A colorimetric aptasensor based on NH₂-MIL-88B for highly selective detection of trace oxytetracycline in water

Lu,

Wang,

Tang

et al. 2023

New J. Chem.

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Detection of oxytetracycline in honey using SERS on silver nanoparticles

Cited by 27 publications

References 38 publications

Green‐tea‐synthesized silver nanoparticles as a sensing platform for determination of tetracycline in honey samples

Green‐tea‐synthesized silver nanoparticles as a sensing platform for determination of tetracycline in honey samples

Nanotechnology in food and water security: on-site detection of agricultural pollutants through surface-enhanced Raman spectroscopy

A colorimetric aptasensor based on NH₂-MIL-88B for highly selective detection of trace oxytetracycline in water

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Detection of oxytetracycline in honey using SERS on silver nanoparticles

Cited by 27 publications

References 38 publications

Green‐tea‐synthesized silver nanoparticles as a sensing platform for determination of tetracycline in honey samples

Green‐tea‐synthesized silver nanoparticles as a sensing platform for determination of tetracycline in honey samples

Nanotechnology in food and water security: on-site detection of agricultural pollutants through surface-enhanced Raman spectroscopy

A colorimetric aptasensor based on NH2-MIL-88B for highly selective detection of trace oxytetracycline in water

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A colorimetric aptasensor based on NH₂-MIL-88B for highly selective detection of trace oxytetracycline in water