High Sensitivity Graphene Field Effect Transistor‐Based Detection of DNA Amplification

Effect of Lowering PCR Reaction Volumes and Increasing the Speed of DNA Amplification on the Sensitivity of PCR

ABSTRACT Recently, PCR is being reported more frequently with satisfactory results on the diagnosis of clinical infections. Widespread availability of PCR promises a sensitive and specific alternative, to traditional methods, but these benefits must be balanced against cost. Protocols using small volumes have described where the reaction taken place in capillary tubes, and small volumes work...

Scalable Production of High-Sensitivity, Label-Free DNA Biosensors Based on Back-Gated Graphene Field Effect Transistors

Scalable production of all-electronic DNA biosensors with high sensitivity and selectivity is a critical enabling step for research and applications associated with detection of DNA hybridization. We have developed a scalable and very reproducible (>90% yield) fabrication process for label-free DNA biosensors based upon graphene field effect transistors (GFETs) functionalized with single-strand...

Simplified detection of the hybridized DNA using a graphene field effect transistor

Detection of disease-related gene expression by DNA hybridization is a useful diagnostic method. In this study a monolayer graphene field effect transistor (GFET) was fabricated for the detection of a particular single-stranded DNA (target DNA). The probe DNA, which is a single-stranded DNA with a complementary nucleotide sequence, was directly immobilized onto the graphene surface without any ...

Direct Electrical Detection of DNA Hybridization Based on Electrolyte-Gated Graphene Field-Effect Transistor

Rapid detection of infectious bursal disease by loop-mediated isothermal amplification for field analysis

Infectious bursal disease (IBD) is an immunosuppressive, acute and highly contagious illness of growing-poultry stock infected with infectious bursal disease virus (IBDV). It is common in Pakistan, causing potential economic losses throughout the year. The objective of the study is to propose a rapid, sensitive and specific diagnostic tool, and compare it with existing commonly used reverse tra...