Nanomaterials and Their Recent Applications in Impedimetric Biosensing.
Zala ŠtukovnikRegina Fuchs-GodecUrban BrenPublished in: Biosensors (2023)
Impedimetric biosensors measure changes in the electrical impedance due to a biochemical process, typically the binding of a biomolecule to a bioreceptor on the sensor surface. Nanomaterials can be employed to modify the biosensor's surface to increase the surface area available for biorecognition events, thereby improving the sensitivity and detection limits of the biosensor. Various nanomaterials, such as carbon nanotubes, carbon nanofibers, quantum dots, metal nanoparticles, and graphene oxide nanoparticles, have been investigated for impedimetric biosensors. These nanomaterials have yielded promising results in improving sensitivity, selectivity, and overall biosensor performance. Hence, they offer a wide range of possibilities for developing advanced biosensing platforms that can be employed in various fields, including healthcare, environmental monitoring, and food safety. This review focuses on the recent developments in nanoparticle-functionalized electrochemical-impedimetric biosensors.
Keyphrases
- label free
- carbon nanotubes
- quantum dots
- healthcare
- oxide nanoparticles
- sensitive detection
- magnetic resonance imaging
- magnetic resonance
- gold nanoparticles
- risk assessment
- room temperature
- dna binding
- health insurance
- social media
- single molecule
- energy transfer
- life cycle
- molecularly imprinted
- solid phase extraction
- dual energy