Label-free gold nanoparticles for the determination of neomycin

Apyari, V. V.; Дмитриенко, С. Г.; Arkhipova, Viktoriya V.; Atnagulov, Aydar; Gorbunova, M. V.; Zolotov, Yury A.

doi:10.1016/j.saa.2013.06.043

Cited by 31 publications

(18 citation statements)

References 37 publications

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“…The reason for color change is possibly due to the inter-particle surface plasmon coupling caused by the aggregation of metal NPs [24]. This color change of NPs depends on the amount of analyte providing a platform for colorimetric based sensors for the detection of various types of substances including metal ions [25][26][27][28][29], iodide [30], proteins [31], sugars [32], bacteria [33], cancer cells [34], antibiotics [35] and DNA [36]. Cao et al demonstrated the analysis of heparin through the measurement of color change from red to blue after the aggregation of AuNPs when heparin is added to the solution [37].…”

mentioning

confidence: 99%

Gold nanoparticles as a localized surface plasmon resonance based chemical sensor for on-site colorimetric detection of arsenic in water samples

Shrivas

Shankar

Dewangan

2015

Sensors and Actuators B: Chemical

127

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mentioning

confidence: 99%

Gold nanoparticles as a localized surface plasmon resonance based chemical sensor for on-site colorimetric detection of arsenic in water samples

Shrivas

Shankar

Dewangan

2015

Sensors and Actuators B: Chemical

127

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“…The streptomycin concentration‐dependent temporal increase in the absorbance of the red‐shifted wavelength at 560 nm (Fig. (b)) suggests the possibility of precise tuning of the fractal growth of AgNP aggregates …”

Section: Resultsmentioning

confidence: 99%

Silver nanoparticle probe for colorimetric detection of aminoglycoside antibiotics: picomolar‐level sensitivity toward streptomycin in water, serum, and milk samples

et al. 2019

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BACKGROUND The low cost of aminoglycoside (AMG) antibiotics facilitates their excessive use in animal husbandry and the agriculture sector. This scenario has led to the occurrence of residues in the food chain. After several years of AMG use in antibacterial therapy, resistance to streptomycin has begun to appear. Most of the detection methods developed for AMG antibiotics lacks specificity. A broad target specific nanoprobe would be ideal for detecting the entire class of AMGs. A rapid and sensitive method for the detection of AMGs is urgently needed. RESULTS Gallic acid‐coated silver nanoparticles (AgNPs) were demonstrated as a nanoprobe for the colorimetric detection of AMGs (yellow to orange / red). A linear dynamic range of 50–650 pmol L−1 was achieved readily by ratiometric spectrophotometry (A560/A400) with a limit of detection (LOD) as low as 36 pmol L−1. The amine‐groups of the AMGs function as molecular linkers, so that electrostatic coupling interactions between neighboring particles drive the formation of AgNP aggregates. The assay can also be applied for the determination of streptomycin residues in serum and milk samples. CONCLUSION This study revealed the potential of an AgNP probe for the rapid and cost‐effective detection of low‐molecular‐weight target analytes, such as the AMGs. A ligand‐induced aggregation of AgNPs coated with gallic acid was reported to be a rapid and sensitive assay for AMGs. Analysis of streptomycin was demonstrated with excellent picomolar‐level sensitivity. Thus, the validated method can find practical applications in the ultrasensitive detection of AMGs in complex and diagnostic settings. © 2019 Society of Chemical Industry

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“…For example, the introduction of either ethylenediaminetetraacetic acid (EDTA) or other chelating agents for preliminary partial aggregation of particles, or strong electrolytes such as sodium and potassium chloride, may be applied. However, several studies clearly indicate that aggregation of colloidal gold nanoparticles may occur after addition of EDTA (Apyari et al 2012;Apyari et al 2013). The influence of metal cations on the aggregation process of gold nanoparticles is described in detail (Rezanka et al 2010).…”

Section: Influence Of Co-existing Cationsmentioning

confidence: 99%

Colorimetric Determination of Lead Using Gold Nanoparticles

et al. 2014

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A combined homogeneous assay and colorimetric determination method using gold nanoparticles was developed for rapid determination of lead(II) in contaminated natural waters. The presence of lead(II) in the colloidal gold suspension causes a change in the absorbance of the suspension. An increase in the absorption property at 595 nm is accompanied by a change in the size of the gold nanoparticles. High concentrations of lead cause aggregation of the gold colloids. Colloidal gold nanoparticles were synthesized using tannic acid as the reducing agent; this reagent allowed selective determination of lead in 10 µL of water, with a detection limit of 310 ng mL −1 within an analysis time of 5 min. The coefficient of variation for lead(II) within the working range of the assay (520 ng mL −1 13 µg mL −1 ) varied from 1.3 to 9.2%. The limit of detection using this method with a sample volume of 50 µL was 60 ng mL −1 . The coefficient of variation for lead over the working range of the determined concentrations (80 ng mL −1 25 µg mL −1 ) varied from 0.2 to 9.3%, while the values for the interday assay (n=8) were less than 10%. The method was employed for the analysis of river, lake, marsh, and Downloaded by [University of Washington Libraries] at 02:13 29 November 2014 2 spring water; the recovery of lead was determined to be 72.5-130% for 10 µL of water and 93.6 -114.7% for 50 µL.

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Label-free gold nanoparticles for the determination of neomycin

Cited by 31 publications

References 37 publications

Gold nanoparticles as a localized surface plasmon resonance based chemical sensor for on-site colorimetric detection of arsenic in water samples

Gold nanoparticles as a localized surface plasmon resonance based chemical sensor for on-site colorimetric detection of arsenic in water samples

Silver nanoparticle probe for colorimetric detection of aminoglycoside antibiotics: picomolar‐level sensitivity toward streptomycin in water, serum, and milk samples

Colorimetric Determination of Lead Using Gold Nanoparticles

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