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Rapid detection of three mycotoxins in animal feed materials using competitive ELISA-based origami microfluidic paper analytical device (μPAD)

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Abstract

We report the development of a competitive ELISA-based origami microfluidic paper-based analytical device (μPAD) for the detection of mycotoxins in animal feed material. The μPAD was patterned using the wax printing technique with the design of a testing pad in the middle and two absorption pads at the side. Anti-mycotoxin antibodies were effectively immobilized on chitosan–glutaraldehyde-modified sample reservoirs in the μPAD. The determination of zearalenone, deoxynivalenol, and T-2 toxin in corn flour was successfully achieved by performing competitive ELISA on the μPAD in 20 min. Colorimetric results were easily distinguished by the naked eye with a detection limit of 1 µg/mL for all three mycotoxins. The μPAD integrated with competitive ELISA holds potential for practical applications in the livestock industry for rapid, sensitive, and cost-effective detection of different mycotoxins in animal feed materials.

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Funding

This study was supported by Alberta Agriculture and Forestry, Alberta Canola Producers Commission, and Collaborative Research and Development Grant from the Natural Sciences and Engineering Research Council of Canada (ACPC103MD2018, 2018F180R, CRDPJ532306).

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Correspondence to **aonan Lu.

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Feng, S., Hua, M.Z., Roopesh, M.S. et al. Rapid detection of three mycotoxins in animal feed materials using competitive ELISA-based origami microfluidic paper analytical device (μPAD). Anal Bioanal Chem 415, 1943–1951 (2023). https://doi.org/10.1007/s00216-023-04612-y

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