A label-free DNA biosensor with high sensitivity and selectivity is constructed by using DNA–Ag NCs and Exo III-catalyzed target recycling amplification.
AbstractMalaria infection withA label-free DNA biosensor based on quartz crystal microbalance (QCM) to diagnose and genotypeThe newly developed QCM was tested for its diagnosis ability using both malaria laboratory strains and clinical isolates. The biosensor was sensitive at the sub-nanogram level, specific for onlyThe dual function QCM was successfully developed with high sensitivity and specificity, and was cost-effective, stable and field adaptable.
Scalable Production of High-Sensitivity, Label-Free DNA Biosensors Based on Back-Gated Graphene Field Effect Transistors