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Teepoo S, Jantra J, Panapong K, Ajayi DT. A highly sensitive hyperbranched Au plasmonic blackbody immunochromatographic assay for detection of leucomalachite green in fish and shrimp. Anal Chim Acta 2024; 1285:342031. [PMID: 38057063 DOI: 10.1016/j.aca.2023.342031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Revised: 11/12/2023] [Accepted: 11/13/2023] [Indexed: 12/08/2023]
Abstract
A novel immunochromatographic assay (ICA) based on hyperbranched Au plasmonic blackbodies (AuPBs) with a smartphone readout was fabricated for the detection of leucomalachite green (LMG) in fish and shrimp products. The ICA was carried out in a competitive immunoassay format with AuPBs as labels. The developed AuPBs-ICA allowed for the LMG detection with a low detection limit (0.15 μg L-1) within 5 min by the smartphone reader. With the label-AuPBs ICA, the color intensity response was linearly related to the concentrations of the LMG (0.2 -1.7 μg L-1). The test line signal could be clearly distinguished at a 1.7 μg L-1 LMG as a cut-off level by the naked eye, which is lower than the conventional colloidal gold nanoparticle (2 μg L-1) and star-shaped nanoparticles (1.9 μg L-1) labeling. LMG contamination in samples was determined with the proposed AuPBs-ICA and the enzyme-linked immunosorbent (ELISA). The AuPBs-ICA results showed good agreement with those from the ELISA. The proposed AuPBs-ICA has the potential to be used as a rapid, sensitive, and simple device for the analysis of LMG residues in fish and shrimp samples.
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Affiliation(s)
- Siriwan Teepoo
- Department of Chemistry, Faculty of Science and Technology, Rajamangala University of Technology Thanyaburi, Thanyaburi, Pathum Thani, 12110, Thailand.
| | - Jongjit Jantra
- King Mongkut's Institute of Technology Ladkrabang, Prince of Chumphon, Pathiu, Chumphon, 86160, Thailand
| | - Khaunnapa Panapong
- Department of Chemistry, Faculty of Science and Technology, Rajamangala University of Technology Thanyaburi, Thanyaburi, Pathum Thani, 12110, Thailand
| | - David Taiwo Ajayi
- Department of Chemistry, Faculty of Science and Technology, Rajamangala University of Technology Thanyaburi, Thanyaburi, Pathum Thani, 12110, Thailand
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Xu D, Zhang L, Zhang G, Liu W, Lu Y. Novel and portable test strip platform for rapid and sensitive on-site detection of procymidone pesticide. Mikrochim Acta 2023; 190:392. [PMID: 37713003 DOI: 10.1007/s00604-023-05960-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Accepted: 08/18/2023] [Indexed: 09/16/2023]
Abstract
A novel and portable detection platform for procymidone (PRM) was developed by combining simple sample pretreatment, lateral flow test strips based on multi-branched gold nanoparticle (LFTS-MBGNP), and a smartphone. Based on the large surface area of MBGNPs, rapid detection of PRM was realized by simple naked eye observation. By utilizing a smartphone as a portable signal analyzer, ultrasensitive quantitative detection of PRM in red wine was realized with the limits of detection (LOD) of 1.60 ng/mL, which was 3000 times lower than the US limit (5 ppm). Moreover, rapid detection of four kinds of fruits and vegetables was achieved within 10 min, with LODs of 4.34 ng/g, 6.93 ng/g, 8.99 ng/g, and 5.03 ng/g, respectively, which could meet the PRM limit of the European Union (10 ng/g). Integrating the optimized QuEChERS pretreatment method, the developed platform realized a simple and sensitive on-site detection of PRM pesticide in foods and red wine within 45 min. This platform provides a useful tool and new idea for rapid screening and detection of pesticide residues in food.
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Affiliation(s)
- Di Xu
- College of Food Science and Technology, Shanghai Ocean University, Shanghai, 201306, China
- Laboratory of Quality and Safety Risk Assessment for Aquatic Products On Storage and Preservation (Shanghai), Ministry of Agriculture, Shanghai, 201306, China
- Shanghai Engineering Research Center of Aquatic-Product Processing and Preservation, Shanghai, 201306, China
| | - Lili Zhang
- College of Food Science and Technology, Shanghai Ocean University, Shanghai, 201306, China
- Laboratory of Quality and Safety Risk Assessment for Aquatic Products On Storage and Preservation (Shanghai), Ministry of Agriculture, Shanghai, 201306, China
- Shanghai Engineering Research Center of Aquatic-Product Processing and Preservation, Shanghai, 201306, China
| | - Guangying Zhang
- College of Food Science and Technology, Shanghai Ocean University, Shanghai, 201306, China
- Laboratory of Quality and Safety Risk Assessment for Aquatic Products On Storage and Preservation (Shanghai), Ministry of Agriculture, Shanghai, 201306, China
- Shanghai Engineering Research Center of Aquatic-Product Processing and Preservation, Shanghai, 201306, China
| | - Wenyue Liu
- College of Food Science and Technology, Shanghai Ocean University, Shanghai, 201306, China
- Laboratory of Quality and Safety Risk Assessment for Aquatic Products On Storage and Preservation (Shanghai), Ministry of Agriculture, Shanghai, 201306, China
- Shanghai Engineering Research Center of Aquatic-Product Processing and Preservation, Shanghai, 201306, China
| | - Ying Lu
- College of Food Science and Technology, Shanghai Ocean University, Shanghai, 201306, China.
- Laboratory of Quality and Safety Risk Assessment for Aquatic Products On Storage and Preservation (Shanghai), Ministry of Agriculture, Shanghai, 201306, China.
- Shanghai Engineering Research Center of Aquatic-Product Processing and Preservation, Shanghai, 201306, China.
- Marine Biomedical Science and Technology Innovation Platform of Lingang New Area, Shanghai, 201306, China.
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Liang HW, Jia BZ, Zhang WF, Wang XX, Zhou K, Lei HT, Xu ZL, Luo L. Ratiometric Fluorescence Immunoassay Based on MnO 2 Nanoflakes for Sensitive and Accurate Detection of Tricaine. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:7575-7583. [PMID: 37057807 DOI: 10.1021/acs.jafc.3c00469] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Tricaine is a common anesthetic used in the long-distance transport of live fish. Recently, its negative impact on human health has aroused extensive concern. Thus, rapid and reliable techniques for tricaine residue analysis are essential to ensuring the quality of aquatic products. Herein, a specific anti-tricaine monoclonal antibody (Mab) was prepared. Then, a sensitive and robust ratiometric fluorescence ELISA (RF-ELISA) was constructed for detecting tricaine based on two MnO2 nanoflake-mediated (MnO2 NFs) fluorogenic reactions. In the RF-ELISA protocol, MnO2 NFs with oxidase-like activity can trigger the formation of fluorescent 2,3-diaminophenazine (oxOPD) with an emissive peak at 570 nm from non-fluorescent o-phenylenediamine (OPD), while ascorbic acid (AA) can decompose MnO2 NFs to lose their oxidase-mimicking activity, which is accompanied by the oxidation of AA into dehydroascorbic acid (DHAA). The subsequent reaction between the generated DHAA and OPD will result in the production of 3-(1,2-dihydroxy ethyl)furo[3,4-b]quinoxalin-1(3H)-on (DFQ), which has a potent emission peak at 445 nm. By virtue of the alkaline phosphatase (ALP) labeled on the antibody, which can catalyze the production of AA from ascorbic acid 2-phosphate (AAP), the concentration of tricaine can be linked to the variation of the RF signal (F445/F570) via a competitive immunoreaction. After optimization, RF-ELISA displayed a detection limit (LOD) of 0.28 ng/mL toward tricaine (in buffer solution), which was 376-fold lower than that of the traditional colorimetric ELISA. For practical application, the LODs of RF-ELISA for tricaine detection in shrimp and tilapia samples were determined to be 2.8 and 5.6 ng/g, respectively. Recoveries for spiked shrimp and tilapia samples, as well as the validation data from LC-MS/MS, showed that RF-ELISA exhibited good accuracy, precision, and reliability. This RF-ELISA protocol opened up new ways for tricaine and other-target analyses in food safety detection.
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Affiliation(s)
- Hong-Wei Liang
- Guangdong Provincial Key Laboratory of Food Quality and Safety, South China Agricultural University, Guangzhou 510642, China
| | - Bao-Zhu Jia
- College of Biology and Food Engineering, Guangdong University of Education, Guangzhou 510303, China
| | - Wen-Feng Zhang
- Guangdong Provincial Key Laboratory of Chemical Measurement and Emergency Test Technology, Guangdong Provincial Engineering Research Center of Rapid Testing Instrument for Food Nutrition and Safety, Institute of Analysis, Guangdong Academy of Sciences (China National Analytical Center, Guangzhou), Guangzhou 510070, China
| | - Xing-Xing Wang
- Shenzhen Total-Test Technology Co., Ltd., Shenzhen 518038, China
| | - Kai Zhou
- Guangdong Provincial Key Laboratory of Food Quality and Safety, South China Agricultural University, Guangzhou 510642, China
- Shenzhen Total-Test Technology Co., Ltd., Shenzhen 518038, China
| | - Hong-Tao Lei
- Guangdong Provincial Key Laboratory of Food Quality and Safety, South China Agricultural University, Guangzhou 510642, China
| | - Zhen-Lin Xu
- Guangdong Provincial Key Laboratory of Food Quality and Safety, South China Agricultural University, Guangzhou 510642, China
- Heyuan Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Heyuan 517000, China
| | - Lin Luo
- Guangdong Provincial Key Laboratory of Food Quality and Safety, South China Agricultural University, Guangzhou 510642, China
- Heyuan Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Heyuan 517000, China
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