|
1
|
Shi X, Luo Y, Yan H, Tian G, Yang S, He Z, Zhang F, Wang Y, Guo L, Chen H. Gold nanoparticle dimer-based immunochromatography for in situ ultrasensitive detection of porcine epidemic diarrhea virus. Mikrochim Acta 2023; 190:430. [PMID: 37804452 DOI: 10.1007/s00604-023-06013-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Accepted: 09/21/2023] [Indexed: 10/09/2023]
Abstract
The low detection sensitivity of lateral-flow immunochromatography assay (LFIA) based on spherical gold nanoparticle (AuNP) limits its wide applications. In the present study, AuNP dimers with strong plasma scattering and robust signal output were synthesized via the Ag ion soldering (AIS) strategy and used as labeled probes in LFIA to boost the sensitivity without any extra operation process and equipment. The established LFIA exhibited high sensitivity with a limit of detection (LOD) of 2.0 × 102 TCID50/mL for PEDV, which provides 50 times higher sensitivity than commercial LFIA based on spherical colloidal gold. In addition, the AuNP dimer-based LFIA showed strong specificity, good reproducibility, high stability, and good accordance to reverse transcription polymer chain reaction (RT-PCR) when detecting 109 clinical samples. Thus, the AuNP dimers is a promising probe for LFIA and the developed AuNP dimer-based LFIA is suitable for the rapid detection of PEDV in the field.
Collapse
Affiliation(s)
- Xinrui Shi
- College of Animal Science and Technology, Guangxi University, Nanning, 530005, Guangxi, China
- Guangxi Zhuang Autonomous Region Engineering Research Center of Veterinary Biologics, Nanning, 530004, Guangxi, China
| | - Yaxiang Luo
- College of Animal Science and Technology, Guangxi University, Nanning, 530005, Guangxi, China
- Guangxi Zhuang Autonomous Region Engineering Research Center of Veterinary Biologics, Nanning, 530004, Guangxi, China
| | - Hao Yan
- College of Animal Science and Technology, Guangxi University, Nanning, 530005, Guangxi, China
- Jiaxing Key Laboratory of Molecular Recognition and Sensing, College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing, Zhejiang, 314001, China
| | - Guangzhao Tian
- College of Animal Science and Technology, Guangxi University, Nanning, 530005, Guangxi, China
- Guangxi Zhuang Autonomous Region Engineering Research Center of Veterinary Biologics, Nanning, 530004, Guangxi, China
| | - Songxin Yang
- College of Animal Science and Technology, Guangxi University, Nanning, 530005, Guangxi, China
- Jiaxing Key Laboratory of Molecular Recognition and Sensing, College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing, Zhejiang, 314001, China
| | - Zhaoyuan He
- College of Animal Science and Technology, Guangxi University, Nanning, 530005, Guangxi, China
| | - Fuxin Zhang
- College of Animal Science and Technology, Guangxi University, Nanning, 530005, Guangxi, China
- Jiaxing Key Laboratory of Molecular Recognition and Sensing, College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing, Zhejiang, 314001, China
| | - Yueliang Wang
- Jiaxing Key Laboratory of Molecular Recognition and Sensing, College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing, Zhejiang, 314001, China.
| | - Longhua Guo
- Jiaxing Key Laboratory of Molecular Recognition and Sensing, College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing, Zhejiang, 314001, China.
| | - Hailan Chen
- College of Animal Science and Technology, Guangxi University, Nanning, 530005, Guangxi, China.
- Jiaxing Key Laboratory of Molecular Recognition and Sensing, College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing, Zhejiang, 314001, China.
- Guangxi Key Laboratory of Animal Reproduction, Breeding and Disease Control, Nanning, 530004, Guangxi, China.
| |
Collapse
|