Synthesis and characterization their application in development of latent submitted in fulfillment of the partial requirement

Abstract

This research focuses on the synthesis, characterization, and forensic utilization of nanomaterials newlinefor the visualization of latent fingerprints (LFPs). Latent fingerprints represent one of the most newlinecrucial forms of physical evidence in forensic investigations; however, their invisibility and newlinedelicate nature often demand enhancement techniques to ensure accurate detection and newlineidentification. Conventional fingerprint development methods, although widely practiced, suffer newlinefrom drawbacks such as limited sensitivity, dependence on surface type, potential toxicity, and newlineinefficiency on aged or contaminated prints. newlineTo overcome these challenges, the present study employs nanotechnology as an innovative, newlineefficient, and non-destructive tool for latent fingerprint development. Zinc oxide (ZnO), copper newlineoxide (CuO), silver (Ag), and calcium oxide (CaO) nanoparticles were synthesized using costeffective newlinechemical routes and characterized through X-ray Diffraction (XRD), Fourier Transform newlineInfrared Spectroscopy (FTIR), and Field Emission Scanning Electron Microscopy (FESEM). The newlinesynthesized nanoparticles were applied to various porous and non-porous substrates to assess newlinetheir effectiveness in revealing newline