Development of a colloidal gold immunochromatographic test strip for detecting the smooth Brucella
Brucellosis, caused by Gram-negative Brucella, spreads in human and animal populations through contact with infected animals and products. Developing a rapid and sensitive detection technology for pathogen is crucial to reduce the risk of this disease transmitting between animal populations and to humans. We produced a monoclonal antibody LPS-6B5, which shows high affinity to LPS and limited cross-reactivity with other bacteria. Based on LPS-6B5, a colloidal gold immunochromatographic assay (GICA) was developed which demonstrates high sensitivity and specificity in detecting cultured B. melitensis, B. abortus and B. suis. The Gold Immunochromatographic Assay (GICA) strips exhibited the most sensitive detection limits, with a value of 7.8125 × 10<sup>5</sup> CFU/mL for Brucella melitensis, surpassing the sensitivity levels observed for Brucella abortus and Brucella suis. It is also suitable for clinical and field samples, providing a cost-effective and user-friendly alternative to traditional methods.
Authors
- Xiaohan Guo
- Yang Xiang-Dong (ORCID: https://orcid.org/0000-0002-0797-8293)
- Liping Guo (ORCID: https://orcid.org/0000-0003-2065-387X)
- Qi Huang (ORCID: https://orcid.org/0000-0003-4278-4491)
- Mingjun Sun (ORCID: https://orcid.org/0009-0008-1361-6185)
- Dehui Yin (ORCID: https://orcid.org/0000-0002-7164-9320)
- Yujia Xie (ORCID: https://orcid.org/0000-0003-2668-8272)
- Qi Wu (ORCID: https://orcid.org/0000-0003-3562-6129)
Institutions
- Xuzhou Medical College (CN)
- China Animal Health and Epidemiology Center (CN)
Publication Details
- Journal
- Scientific Reports
- Published
- 2024-10-23
- DOI
- https://doi.org/10.1038/s41598-024-76026-4
- Citations
- 5
- Primary Topic
- Brucella: diagnosis, epidemiology, treatment
- Type
- article
- Field-Weighted Citation Impact
- 3.19
Funders
- Jiangsu Commission of Health
- Government of Jiangsu Province
- Xuzhou Science and Technology Bureau