Abstract
Most forensic laboratories use powder and dyes to develop latent fingerprints on various surfaces. The latent fingerprint is essential physical evidence in forensic investigations. Herein, we report a novel, cost-effective and eco-friendly protocol for the synthesis of cupric oxide nano-particle using green tea extract. The CuO-Nps is a novel powder method first-time use for the development of latent fingerprints on various surfaces. The copper oxide nanoparticle having a spherical morphology and its size ranges from 500 to 900 nm. The synthesized nanoparticle powder was characterized by Fourier transform-infrared spectroscopy (FT-IR), Energy dispersive spectroscopy (EDS), and field emission-scanning electron microscopy (FE-SEM).
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