Gapped-duplex structure to label-free mismatch detection of pathogen DNA on solid substrate

Electrochemical Detection of Solution Phase Hybridization Related to Single Nucleotide Mutation by Carbon Nanofibers Enriched Electrodes

In the present study, a sensitive and selective impedimetric detection of solution-phase nucleic acid hybridization related to Factor V Leiden (FV Leiden) mutation was performed by carbon nanofibers (CNF) modified screen printed electrodes (SPE). The microscopic and electrochemical characterization of CNF-SPEs was explored in comparison to the unmodified electrodes. Since the FV Leiden mutation is a widespread inherited risk factor predisposing to venous thromboembolism, this study herein aimed to perform the impedimetric detection of FV Leiden mutation by a zip nucleic acid (ZNA) probe-based assay in combination with CNF-SPEs. The selectivity of the assay was then examined against the mutation-free DNA sequences as well as the synthetic PCR samples.

A sensitive DNA sensor based on an organic electrochemical transistor using a peptide nucleic acid-modified nanoporous gold gate electrode

An organic electrochemical transistor (OECT) based on poly(3,4-ethylenedioxythiophene):polystyrene sulfonate with porous anodic aluminum oxide (AAO) as a gate electrode was proposed for DNA sensing.

Facet-dependent nonenzymatic glucose sensing properties of Cu2O cubes and octahedra

Cu₂O cubes and octahedra which have different crystallographic facets have been used for the nonenzymatic glucose sensors. A Cu₂O octahedra modified electrode shows higher sensitivity, lower detection limit, and wider linear range than that of the cubes.