Carbon ink-based electrodes modified with nanocomposite as a platform for electrochemical detection of HIV RNA

This work reports a new and easy-to-use methodology for construction of screen-printed electrodes (SPE) based on carbon ink and its modification with 4-aminothiophenol (4-ATP) and gold nanoparticles for detection of HIV RNA. Morphological analysis for SPE/4-ATP/AuNps+DNA probe showed increased roughness indicating that 4-ATP monolayer works as a network for connection of functionalized gold nanoparticles with specific oligonucleotide probe to...