SYNTHESIS AND CHARACTERIZATION OF ZnO NANOPARTICLES FOR POTENTIAL APPLICATION IN LATENT FINGERPRINT DEVELOPMENT
Main Article Content
Keywords
Criminal investigations, Latent fingerprint, FE-SEM, XRD, ZnO nanoparticles
Abstract
The presentresearch work includes the synthesis and characterization of zinc oxide (ZnO) nanoparticles and their utilization for the development of latent fingerprint development. The synthesis of ZnO nanoparticles involves an economical precipitation process using zinc acetate dihydrate [Zn(OOCCH3)2.2H2O] and ethylene glycol (C2H6O2) as precursors.The structural examination of synthesized nanoparticles was done by employingField Emission ScanningElectron Microscopy (FE-SEM) and particle size analysis which showed that the nanoparticles formed were primarily hexagonal shaped and had an average size of up to 100 nm. The crystalline nature of the nanoparticleswas further verified by X-ray diffraction (XRD) study which confirms the hexagonal wurtzite structure of ZnO. These nanoparticles were then investigated as potential candidates for the development of latent fingerprints by testing them on various surfaces. From these studies, it has been observed that these nanoparticles helped in improving contrast and visibility, of the latent fingerprints, thereby helping in their effective revealing. The encouraging outcomes of the present work would be helpful asaprospective application of the synthesized ZnO nanoparticles in forensic research. Improvements in fingerprint detection methods could result from more optimization and analysis of their qualities, which would help law enforcement with criminal investigations.
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Atul Kumar Dubey
School of Sciences, Alakh Prakash Goyal Shimla University, Shimla, Himachal Pradesh
Praveen Pradhan
School of Sciences, Alakh Prakash Goyal Shimla University, Shimla, Himachal Pradesh
Maninder Kaur
School of Sciences, Alakh Prakash Goyal Shimla University, Shimla, Himachal Pradesh
Deepika Bhandari
Department of Forensic Science, Himachal Pradesh University, Shimla, Himachal Pradesh
Rohini Dharela
School of Sciences, Alakh Prakash Goyal Shimla University, Shimla, Himachal Pradesh
Dushyant Kumar
School of Sciences, Alakh Prakash Goyal Shimla University, Shimla, Himachal Pradesh