This chapter discusses the great potential of functional graphene-based
nanosensors in forensic investigation. There are several limitations faced by forensic
investigators in analyzing trace amounts of illicit drugs, narcotics, toxins, and
explosives because of the sensitivity, specificity, selectivity, chemical and volatile
nature of explosives, and impurities in the residues collected from the crime scene. This
chapter highlights the application of functional graphene-based nanosensors and
graphene quantum dots in improving forensic analysis by enhancing the sensitivity of
these carbon-based nanoparticles and optimizing the response range of sensors. The
major focus of this chapter will be on the application of graphene nanosensors for the
detection of trace amounts of illicit drugs, narcotics, and explosives that are collected
from crime scenes. It will also entail a comparison of the application of graphene
nanoparticles and metallic nanoparticles for drug analysis.
Keywords: Mechanical and electromagnetic, Nanosensors, Nanotechnology, Optical.
