Nanoparticles: For The Development Of Latent Fingerprints

Abstract

The development of latent fingerprints is an essential component of forensic science because, in our day and age, the rate of crime is not declining but rather rising daily. These fingerprints can be used to link suspects to victims and help identify criminals. Lately, nanotechnology has become increasingly important in the development of latent fingerprints; however, as nanotechnology advances, metal nanoparticles have emerged as a potentially useful method to improve latent fingerprint visualization and detection. The use of metal nanoparticles, such as zinc oxide, silver, and gold, in fingerprint development is the only subject of this review paper. It looks at the benefits these nanoparticles have over conventional fingerprint development techniques, how they interact with fingerprint residues, and how to synthesize and apply them. The study also addresses the practical use of nanoparticle-based techniques in forensic settings, including their efficacy on challenging surfaces, as well as their sensitivity and specificity. The review also takes into account the possible effects of employing metal nanoparticles in forensic investigations on human health and the environment. This paper attempts to demonstrate the potential of metal nanoparticles to revolutionize forensic practices and improve the precision and dependability of fingerprint analysis by offering a comprehensive overview of their role in the development of latent fingerprints.