The optimization of a lateral flow immunoassay for detection of aflatoxin B1 in potable water samplesCitation formats

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The optimization of a lateral flow immunoassay for detection of aflatoxin B1 in potable water samples. / Yan, Xiaoxiang; Persaud, Krishna.

In: IEEE Sensors Journal, Vol. 19, No. 2, 10.1109/JSEN.2018.2878449, 15.01.2019, p. 404-412.

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Yan, Xiaoxiang ; Persaud, Krishna. / The optimization of a lateral flow immunoassay for detection of aflatoxin B1 in potable water samples. In: IEEE Sensors Journal. 2019 ; Vol. 19, No. 2. pp. 404-412.

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@article{6a558405206d4ea595e2942db1421c5d,
title = "The optimization of a lateral flow immunoassay for detection of aflatoxin B1 in potable water samples",
abstract = "A high sensitive immunoassay-based lateral flow device for semi-quantitatively determine aflatoxin M1 (AFM1) in milk was developed. Investigation and optimization of the competitor design and of the gold-labelling strategy allowed the attainment of the ultra-sensitive assessment of AFM1 contamination at nanograms per litre level (LOD 20 ng L−1, IC50 99 ng L−1), as requested by European regulations. A one order of magnitude detectability enhancement in comparison to previously reported gold colloid immunochromatographic assays for this toxin was obtained.Direct detection of the target toxin in milk could be obtained by acquiring images of the strips and correlating intensities of the coloured lines with analyte concentrations. The one-step assay can be completed in 17 min, including a very simple and rapid sample preparation, which allowed the application of the assay to milk samples which differ in fat and protein contents. Although imprecise (mean RSD about 30{\%}), the method proved to be accurate and sensitive enough to allow the correct attribution of sample as compliant or non-compliant according to EU legislation in force. Agreeing results to those of a reference ELISA were obtained on 40 milk samples by matrix-matched calibration in pasteurized milk.",
keywords = "Aflatoxin B1, biosensor, ateral flow immunoassay, potable water",
author = "Xiaoxiang Yan and Krishna Persaud",
year = "2019",
month = "1",
day = "15",
doi = "10.1109/JSEN.2018.2878449",
language = "English",
volume = "19",
pages = "404--412",
journal = "IEEE Sensors Journal",
issn = "1530-437X",
publisher = "IEEE",
number = "2",

}

RIS

TY - JOUR

T1 - The optimization of a lateral flow immunoassay for detection of aflatoxin B1 in potable water samples

AU - Yan, Xiaoxiang

AU - Persaud, Krishna

PY - 2019/1/15

Y1 - 2019/1/15

N2 - A high sensitive immunoassay-based lateral flow device for semi-quantitatively determine aflatoxin M1 (AFM1) in milk was developed. Investigation and optimization of the competitor design and of the gold-labelling strategy allowed the attainment of the ultra-sensitive assessment of AFM1 contamination at nanograms per litre level (LOD 20 ng L−1, IC50 99 ng L−1), as requested by European regulations. A one order of magnitude detectability enhancement in comparison to previously reported gold colloid immunochromatographic assays for this toxin was obtained.Direct detection of the target toxin in milk could be obtained by acquiring images of the strips and correlating intensities of the coloured lines with analyte concentrations. The one-step assay can be completed in 17 min, including a very simple and rapid sample preparation, which allowed the application of the assay to milk samples which differ in fat and protein contents. Although imprecise (mean RSD about 30%), the method proved to be accurate and sensitive enough to allow the correct attribution of sample as compliant or non-compliant according to EU legislation in force. Agreeing results to those of a reference ELISA were obtained on 40 milk samples by matrix-matched calibration in pasteurized milk.

AB - A high sensitive immunoassay-based lateral flow device for semi-quantitatively determine aflatoxin M1 (AFM1) in milk was developed. Investigation and optimization of the competitor design and of the gold-labelling strategy allowed the attainment of the ultra-sensitive assessment of AFM1 contamination at nanograms per litre level (LOD 20 ng L−1, IC50 99 ng L−1), as requested by European regulations. A one order of magnitude detectability enhancement in comparison to previously reported gold colloid immunochromatographic assays for this toxin was obtained.Direct detection of the target toxin in milk could be obtained by acquiring images of the strips and correlating intensities of the coloured lines with analyte concentrations. The one-step assay can be completed in 17 min, including a very simple and rapid sample preparation, which allowed the application of the assay to milk samples which differ in fat and protein contents. Although imprecise (mean RSD about 30%), the method proved to be accurate and sensitive enough to allow the correct attribution of sample as compliant or non-compliant according to EU legislation in force. Agreeing results to those of a reference ELISA were obtained on 40 milk samples by matrix-matched calibration in pasteurized milk.

KW - Aflatoxin B1

KW - biosensor

KW - ateral flow immunoassay

KW - potable water

U2 - 10.1109/JSEN.2018.2878449

DO - 10.1109/JSEN.2018.2878449

M3 - Article

VL - 19

SP - 404

EP - 412

JO - IEEE Sensors Journal

JF - IEEE Sensors Journal

SN - 1530-437X

IS - 2

M1 - 10.1109/JSEN.2018.2878449

ER -