Journal
NANOMATERIALS
Volume 10, Issue 10, Pages -Publisher
MDPI
DOI: 10.3390/nano10101921
Keywords
polymerase chain reaction; foot-and-mouth disease virus; graphene oxide; gold nanoparticle
Categories
Funding
- National Research Council of Science & Technology (NST) [QLT-CRC-18-01-ETRI]
- National Research Foundation [NRF-2019R1A2C1084687]
- Korea government (MSIT)
- KRIBB Initiative Research Program
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The polymerase chain reaction (PCR) has become a powerful molecular diagnostic technique over the past few decades, but remains somewhat impaired due to low specificity, poor sensitivity, and false positive results. Metal and carbon nanomaterials, quantum dots, and metal oxides, can improve the quality and productivity of PCR assays. Here, we describe the ability of PCR assisted with nanomaterials (nano-PCR) comprising a nanocomposite of graphene oxide (GO) and gold nanoparticles (AuNPs) for sensitive detection of the foot-and-mouth disease virus (FMDV). Graphene oxide and AuNPs have been widely applied as biomedical materials for diagnosis, therapy, and drug delivery due to their unique chemical and physical properties. Foot-and-mouth disease (FMD) is highly contagious and fatal for cloven-hoofed animals including pigs, and it can thus seriously damage the swine industry. Therefore, a highly sensitive, specific, and practical method is needed to detect FMDV. The detection limit of real-time PCR improved by similar to 1000 fold when assisted by GO-AuNPs. We also designed a system of detecting serotypes in a single assay based on melting temperatures. Our sensitive and specific nano-PCR system can be applied to diagnose early FMDV infection, and thus may prove to be useful for clinical and biomedical applications.
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