Abstract

Gold nanoparticles (GNPs) biosensors can detect low viral loads and differentiate between viruses types, enabling early diagnosis and effective disease management. In the present study, we developed GNPs biosensors with two different capping agent, citrate-GNPs biosensors and polyvinylpyrrolidone (PVP)-GNPs biosensors for detection of EHV-1 and EHV-4 in multiplex real time PCR (rPCR). Citrate-GNPs and PVP-GNPs biosensors can detect dilution 1010 of EHV-1 with mean Cycle threshold (Ct) 11.7 and 9.6, respectively and one copy as limit of detection, while citrate-GNPs and PVP-GNPs biosensors can detect dilution 1010 of EHV-4 with mean Ct 10.5 and 9.2, respectively and one copy as limit of detection. These findings were confirmed by testing 87 different clinical samples, 4 more samples were positive with multiplex GNPs biosensors rPCR than multiplex rPCR. Multiplex citrate-GNPs and PVP-GNPs biosensors for EHV-1 and EHV-4 are a significant breakthrough in the diagnosis of these virus types. These biosensors offer high sensitivity and specificity, allowing for the accurate detection of the target viruses at very low concentrations and improve the early detection of EHV-1 and EHV-4, leading to faster control of infected animals to prevent the spread of these viruses.

Details

Title
Development of multiplex gold nanoparticles biosensors for ultrasensitive detection and genotyping of equine herpes viruses
Author
Ghoniem, Shimaa M. 1 ; ElZorkany, Heba E. 2 ; Hagag, Naglaa M. 3 ; El-Deeb, Ayman H. 4 ; Shahein, Momtaz A. 1 ; Hussein, Hussein A. 5 

 Agriculture Research Center, Department of Virology, Animal Health Research Institute, Giza, Egypt (GRID:grid.418376.f) (ISNI:0000 0004 1800 7673) 
 Agriculture Research Center, Nanotechnology and Advanced Materials Central Lab, Giza, Egypt (GRID:grid.418376.f) (ISNI:0000 0004 1800 7673) 
 Agriculture Research Center, Genome Research Unit, Animal Health Research Institute, Giza, Egypt (GRID:grid.418376.f) (ISNI:0000 0004 1800 7673) 
 Cairo University, Department of Virology, Faculty of Veterinary Medicine, Giza, Egypt (GRID:grid.7776.1) (ISNI:0000 0004 0639 9286); King Salman International University, Department of Virology, Faculty of Veterinary Medicine, South Sinai, Egypt (GRID:grid.7776.1) 
 Cairo University, Department of Virology, Faculty of Veterinary Medicine, Giza, Egypt (GRID:grid.7776.1) (ISNI:0000 0004 0639 9286) 
Pages
15140
Publication year
2023
Publication date
2023
Publisher
Nature Publishing Group
e-ISSN
20452322
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2864401486
Copyright
© The Author(s) 2023. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.