PMID- 37716240 OWN - NLM STAT- MEDLINE DCOM- 20231109 LR - 20231109 IS - 1873-3573 (Electronic) IS - 0039-9140 (Linking) VI - 267 DP - 2024 Jan 15 TI - Paper-based microfluidic device for selective detection of peanut allergen Ara h1 applying black phosphorus-Au nanocomposites for signal amplification. PG - 125188 LID - S0039-9140(23)00939-6 [pii] LID - 10.1016/j.talanta.2023.125188 [doi] AB - This paper developed a portable microfluidic paper-based analysis device (mu-PAD) combined with the electrochemical technique for efficient and sensitive detection of peanut allergen Ara h1. The proposed mu-PAD works based on the variation of differential pulse voltammetry (DPV) response current induced by peanut allergen Ara h1. Black phosphorus (BP)-Au nanocomposites were introduced both to improve the electron transfer rate at the electrode interface for signal amplification, and to immobilize the specific Ara h1 aptamers through Au-S bonding to recognize the target in food matrices. This mu-PAD had good specificity and detection stability for Ara h1 allergen and could complete the entire analysis process within 20 min, achieving a wide linear response range (25-800 ng mL(-1)) and a low detection limit (LOD, 11.8 ng mL(-1)). In the Ara h1 allergen detection applied to real peanut products (cookies, milk, and bread), the constructed mu-PAD obtained acceptable recoveries (93.50%-101.86%) with relative standard deviations (RSDs) of 0.36-2.97% (n = 3), with a good correlation with the ELISA results (R(2) = 0.9956). Therefore, the portable mu-PAD based on BP-Au nanocomposites was demonstrated to provide an effective strategy for rapid analysis and screening of Ara h1 allergen in food, which has broad application prospects. CI - Copyright (c) 2023 Elsevier B.V. All rights reserved. FAU - Pan, Mingfei AU - Pan M AD - State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science and Technology, Tianjin, 300457, China; Key Laboratory of Food Quality and Health of Tianjin, Tianjin University of Science & Technology, 300457, Tianjin, China. FAU - Han, Xintong AU - Han X AD - State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science and Technology, Tianjin, 300457, China; Key Laboratory of Food Quality and Health of Tianjin, Tianjin University of Science & Technology, 300457, Tianjin, China. FAU - Chen, Sixuan AU - Chen S AD - State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science and Technology, Tianjin, 300457, China; Key Laboratory of Food Quality and Health of Tianjin, Tianjin University of Science & Technology, 300457, Tianjin, China. FAU - Yang, Jingying AU - Yang J AD - State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science and Technology, Tianjin, 300457, China; Key Laboratory of Food Quality and Health of Tianjin, Tianjin University of Science & Technology, 300457, Tianjin, China. FAU - Wang, Yueyao AU - Wang Y AD - State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science and Technology, Tianjin, 300457, China; Key Laboratory of Food Quality and Health of Tianjin, Tianjin University of Science & Technology, 300457, Tianjin, China. FAU - Li, Huilin AU - Li H AD - State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science and Technology, Tianjin, 300457, China; Key Laboratory of Food Quality and Health of Tianjin, Tianjin University of Science & Technology, 300457, Tianjin, China. FAU - Wang, Shuo AU - Wang S AD - State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science and Technology, Tianjin, 300457, China; Key Laboratory of Food Quality and Health of Tianjin, Tianjin University of Science & Technology, 300457, Tianjin, China. Electronic address: s.wang@tust.edu.cn. LA - eng PT - Journal Article DEP - 20230912 PL - Netherlands TA - Talanta JT - Talanta JID - 2984816R RN - 0 (Allergens) RN - 0 (Plant Proteins) RN - 0 (Antigens, Plant) SB - IM MH - *Allergens/analysis MH - Plant Proteins/analysis MH - Antigens, Plant MH - Arachis MH - *Nanocomposites OTO - NOTNLM OT - Aptamer OT - Black phosphorus nanosheets OT - Gold nanoparticles OT - Microfluidic paper-based analysis device OT - Peanut allergen ara h1 COIS- Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. EDAT- 2023/09/17 00:41 MHDA- 2023/11/09 06:42 CRDT- 2023/09/16 18:08 PHST- 2023/05/09 00:00 [received] PHST- 2023/09/04 00:00 [revised] PHST- 2023/09/08 00:00 [accepted] PHST- 2023/11/09 06:42 [medline] PHST- 2023/09/17 00:41 [pubmed] PHST- 2023/09/16 18:08 [entrez] AID - S0039-9140(23)00939-6 [pii] AID - 10.1016/j.talanta.2023.125188 [doi] PST - ppublish SO - Talanta. 2024 Jan 15;267:125188. doi: 10.1016/j.talanta.2023.125188. Epub 2023 Sep 12.