Production of a monoclonal antibody for the detection of vitamin B1 and its use in an indirect enzyme-linked immunosorbent assay and immunochromatographic strip

2020 ◽  
Vol 8 (9) ◽  
pp. 1935-1943 ◽  
Author(s):  
Lu Zeng ◽  
Xaioling Wu ◽  
Liqiang Liu ◽  
Liguang Xu ◽  
Hua Kuang ◽  
...  
Keyword(s):  
Monoclonal Antibody ◽  
Immunosorbent Assay ◽  
Colloidal Gold ◽  
Vitamin B1 ◽  
Enzyme Linked Immunosorbent Assay ◽  
Vitamin B ◽  
Immunochromatographic Test ◽  
Immunochromatographic Strip

A monoclonal antibody (mAb) against vitamin B1 was prepared and based on this, an indirect competitive enzyme-linked immunosorbent assay (ic-ELISA) and colloidal gold-based immunochromatographic test (ICT) strip were developed.

Rapid quantitative determination of fentanyl in human urine and serum using a gold-based immunochromatographic strip sensor

2020 ◽  
Vol 8 (37) ◽  
pp. 8573-8584
Author(s):  
Xianlu Lei ◽  
Xinxin Xu ◽  
Liqiang Liu ◽  
Hua Kuang ◽  
Liguang Xu ◽  
...  
Keyword(s):  
Monoclonal Antibody ◽  
Quantitative Determination ◽  
Immunosorbent Assay ◽  
Human Urine ◽  
Colloidal Gold ◽  
Enzyme Linked Immunosorbent Assay ◽  
Immunochromatographic Strip ◽  
Human Urine And Serum ◽  
Urine And Serum

In this study, an ultrasensitive monoclonal antibody (mAb) was prepared and used to develop an indirect competitive enzyme-linked immunosorbent assay (ic-ELISA) and a colloidal gold-based immunochromatographic strip (CG-ICS) for the analysis of fentanyl in urine and serum.

scholarly journals Development of a double monoclonal antibody–based sandwich enzyme-linked immunosorbent assay for detecting canine distemper virus

2020 ◽  
Vol 104 (24) ◽  
pp. 10725-10735
Author(s):  
Yuan Zhang ◽  
Gang Xu ◽  
Lu Zhang ◽  
Jiakai Zhao ◽  
Pinpin Ji ◽  
...  
Keyword(s):  
Monoclonal Antibody ◽  
Immunosorbent Assay ◽  
Colloidal Gold ◽  
Canine Distemper Virus ◽  
Sandwich Elisa ◽  
Enzyme Linked Immunosorbent Assay ◽  
Test Results ◽  
Canine Distemper ◽  
Serum Samples ◽  
Ideal Method

Abstract Canine distemper virus (CDV) infection causes mass mortality in diverse carnivore species. For effective virus surveillance, rapid and sensitive assays are needed to detect CDV in field samples. In this study, after BABL/c mice were immunized with recombinant CDV-fusion (F) protein, monoclonal antibodies (mAbs) against recombinant CDV-F protein (designated 1A5, 1A6, and 7D5) were produced using traditional hybridoma cell technology. Next, capture antibody (1A6, 800 ng/well) and horseradish peroxidase (HRP)–conjugated detection antibody (HRP-7D5, 1:100, 500 ng/well) were used in a double monoclonal antibody–based sandwich enzyme-linked immunosorbent assay (ELISA) for CDV detection after optimization of both mAb amounts per well using a checkerboard titration test. Based on sandwich ELISA test results for 120 known CDV-negative samples, the cutoff value for a positive result was set to an OD450 nm value ≥ 0.196. As compared with test results obtained from commercial immune colloidal gold test strips, the low limits of detection for the two assays were revealed to be 100 TCID50 per 100 μL. In addition, the sandwich ELISA agreed 100% and 96.4% with commercial immune colloidal gold test strips when testing serum and stool samples. The sandwich ELISA assay provided statistically similar CDV detection. Thus, the sandwich ELISA developed here to detect CDV in fecal and serum samples provided good sensitivity, high specificity, and good reproducibility and should serve as an ideal method for large-scale surveillance of CDV infections in carnivores. Key points • Three CDV mAbs that recognized different epitopes and bound to virion were generated. • The sandwich ELISA based mAbs to detect CDV in fecal and serum samples was developed. • The sandwich ELISA is an ideal method for detecting CDV infections in the field.

Determination of robenidine in shrimp and chicken samples using the indirect competitive enzyme-linked immunosorbent assay and immunochromatographic strip assay

The Analyst ◽  
2021 ◽  
Author(s):  
Lu Lin ◽  
Shanshan Song ◽  
Xiaoling Wu ◽  
Liqiang Liu ◽  
Hua Kuang ◽  
...  
Keyword(s):  
Monoclonal Antibody ◽  
Immunosorbent Assay ◽  
Rapid Screening ◽  
Enzyme Linked Immunosorbent Assay ◽  
Immunochromatographic Strip

In this study, the monoclonal antibody-based indirect competitive enzyme-linked immunosorbent assay (ic-ELISA) and an immunochromatographic strip assay were developed for the rapid screening of robenidine hydrochloride (ROBH) in samples.

Indirect competitive ELISA and colloidal gold-based immunochromatographic strip for amantadine detection in animal-derived foods

2019 ◽  
Vol 11 (15) ◽  
pp. 2027-2032
Author(s):  
Mingfei Pan ◽  
Jingying Yang ◽  
Shijie Li ◽  
Guozhu Wang ◽  
Junping Wang ◽  
...  
Keyword(s):  
Immunosorbent Assay ◽  
Colloidal Gold ◽  
Antiviral Drug ◽  
Competitive Elisa ◽  
Enzyme Linked Immunosorbent Assay ◽  
Immunochromatographic Strip ◽  
Indirect Competitive Elisa

In this research, an indirect competitive enzyme-linked immunosorbent assay (ELISA) and colloidal gold-based immunochromatographic (GICG) strip were developed for the detection of the antiviral drug amantadine (AM) in animal-derived foods.

scholarly journals Unreliable Measurement of Basophil Maximum Leukotriene Release with the Bühlmann CAST 2000 Enzyme-Linked Immunosorbent Assay Kit

2006 ◽  
Vol 13 (3) ◽  
pp. 420-422 ◽  
Author(s):  
S. E. Burastero ◽  
C. Paolucci ◽  
D. Breda ◽  
G. Monasterolo ◽  
R. E. Rossi ◽  
...  
Keyword(s):  
Monoclonal Antibody ◽  
Monoclonal Antibodies ◽  
Immunosorbent Assay ◽  
False Positive ◽  
Positive Control ◽  
Enzyme Linked Immunosorbent Assay ◽  
Positive Results

ABSTRACT The Bühlmann CAST 2000 enzyme-linked immunosorbent assay is a potentially useful assay for measuring sulfidoleukotrienes released in vitro by allergen-challenged basophils. However, we observed that the positive-control reagent yielded positive signals in cell-free systems. These false-positive results depended on using a mouse anti-FcεRI monoclonal antibody and were prevented by degranulation-inducing reagents other than mouse monoclonal antibodies.

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