Several techniques are employed in nanotechnology-based explosive detection:
Electrochemical Detection: Involves measuring changes in electrical properties such as resistance or current. Optical Detection: Utilizes changes in light absorption or emission, often through fluorescence or colorimetric methods. Mass Spectrometry: Nanomaterials can be used to enhance the ionization of explosive molecules, making them easier to detect. Surface-Enhanced Raman Spectroscopy (SERS): Uses metal nanoparticles to enhance the Raman scattering signal of explosive molecules.
