What Techniques are Used for Analyte Detection in Nanotechnology?
Several advanced techniques are employed for analyte detection in nanotechnology:
1. Surface Plasmon Resonance (SPR): Utilizes the oscillation of electrons on the surface of metal nanoparticles to detect changes in the refractive index when analytes bind to the surface. 2. Fluorescence Resonance Energy Transfer (FRET): Measures the energy transfer between two light-sensitive molecules, often mediated by quantum dots, to detect the presence of an analyte. 3. Electrochemical Sensors: Use nanomaterials like carbon nanotubes or metal oxides to enhance the sensitivity and specificity of electrochemical measurements. 4. Atomic Force Microscopy (AFM): Provides high-resolution imaging and can be used to detect the binding events between analytes and nanoscale surfaces.
