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A highly sensitive lateral flow immunoassay based on a group-specific monoclonal antibody and amorphous carbon nanoparticles for detection of sulfonamides in milk. 2023

Meng Dang, and Zizhe Li, and Yexuan Mao, and Xianqing Huang, and Lianjun Song, and Wenfeng Li, and Ruxiang Ma, and Yang Liu, and Liye Wang, and Xuezhi Yu, and Huijuan Yang, and Xiya Zhang
Henan Engineering Technology Research Center of Food Processing and Circulation Safety Control, College of Food Science and Technology, Henan Agricultural University, 63 Nongye Road, Zhengzhou, 450002, Henan, China.

To meet high-throughput screening of the residues of sulfonamides (SAs) with high sensitivity toward sulfamethazine (SM2) in milk samples, a new highly sensitive lateral flow immunoassay (LFA) based on amorphous carbon nanoparticles (ACNs) was developed. First, a group-specific monoclonal antibody 10H7 (mAb 10H7) that could recognize 25 SAs with high sensitivity toward SM2 (IC50 value of 0.18 ng/mL) was prepared based on H1 as an immune hapten and H4 as a heterologous coating hapten. Then, mAb 10H7 was conjugated to ACNs as an immune probe for LFA development. Under the optimized conditions, the LFA could detect 25 SAs with the cut-off value toward SM2 of 2 ng/mL, which could meet the requirement for detection of SAs. In addition, the LFA developed was also used for screening SAs' residues in real milk samples, with results being consistent with HPLC-MS/MS. Thus, this LFA can be used as a high-throughput screening tool for detection of SAs.

UI MeSH Term Description Entries
D007118 Immunoassay A technique using antibodies for identifying or quantifying a substance. Usually the substance being studied serves as antigen both in antibody production and in measurement of antibody by the test substance. Immunochromatographic Assay,Assay, Immunochromatographic,Assays, Immunochromatographic,Immunoassays,Immunochromatographic Assays
D008892 Milk The off-white liquid secreted by the mammary glands of humans and other mammals. It contains proteins, sugar, lipids, vitamins, and minerals. Cow Milk,Cow's Milk,Milk, Cow,Milk, Cow's
D002244 Carbon A nonmetallic element with atomic symbol C, atomic number 6, and atomic weight [12.0096; 12.0116]. It may occur as several different allotropes including DIAMOND; CHARCOAL; and GRAPHITE; and as SOOT from incompletely burned fuel. Carbon-12,Vitreous Carbon,Carbon 12,Carbon, Vitreous
D006241 Haptens Small antigenic determinants capable of eliciting an immune response only when coupled to a carrier. Haptens bind to antibodies but by themselves cannot elicit an antibody response. Hapten,Contact-Sensitizing Agents,Agents, Contact-Sensitizing,Contact Sensitizing Agents
D000077145 Sulfanilamide A short-acting sulfonamide used as an anti-infective agent. It has lower anti-bacterial activity than SULFAMETHOXAZOLE. 4-aminobenzenesulfonamide,Azol Polvo,Sulfanilamide Barium Salt,Sulfanilamide Cadmium Salt,Sulfanilamide Hydrochloride,Sulfanilamide Lithium Salt,Sulfanilamide Magnesium Salt,Sulfanilamide Monohydrate,Sulfanilamide Silver Salt,Sulfanilamide Sodium,Sulfanilamide Sodium Salt,Sulfanilamide Strontium Salt,Sulfanilamide Zinc Salt,Sulphanilamide,4 aminobenzenesulfonamide
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D000911 Antibodies, Monoclonal Antibodies produced by a single clone of cells. Monoclonal Antibodies,Monoclonal Antibody,Antibody, Monoclonal
D013449 Sulfonamides A group of compounds that contain the structure SO2NH2. Sulfonamide,Sulfonamide Mixture,Sulfonamide Mixtures,Mixture, Sulfonamide,Mixtures, Sulfonamide
D053719 Tandem Mass Spectrometry A mass spectrometry technique using two (MS/MS) or more mass analyzers. With two in tandem, the precursor ions are mass-selected by a first mass analyzer, and focused into a collision region where they are then fragmented into product ions which are then characterized by a second mass analyzer. A variety of techniques are used to separate the compounds, ionize them, and introduce them to the first mass analyzer. For example, for in GC-MS/MS, GAS CHROMATOGRAPHY-MASS SPECTROMETRY is involved in separating relatively small compounds by GAS CHROMATOGRAPHY prior to injecting them into an ionization chamber for the mass selection. Mass Spectrometry-Mass Spectrometry,Mass Spectrometry Mass Spectrometry,Mass Spectrometry, Tandem
D053758 Nanoparticles Nanometer-sized particles that are nanoscale in three dimensions. They include nanocrystaline materials; NANOCAPSULES; METAL NANOPARTICLES; DENDRIMERS, and QUANTUM DOTS. The uses of nanoparticles include DRUG DELIVERY SYSTEMS and cancer targeting and imaging. Nanocrystalline Materials,Nanocrystals,Material, Nanocrystalline,Materials, Nanocrystalline,Nanocrystal,Nanocrystalline Material,Nanoparticle

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