Eco and user–friendly curcumin based nanocomposite forensic powder from coal fly ash for latent fingerprint detection in crime scenes
Year: 2024
Type: article
Abstract: For the purpose of developing latent fingerprints (LFPs) images, eco-friendly nanocomposite fingerprint powder preparation is a requirement for crime scene analysis and identification. This is a recyclable, eco-friendly nanocomposite made up of coal fly ash (CFA), which achieved a better result in the detection of LFPs. In this study, the production of an eco-friendly curcumin based nanocomposite fingerprint labeling powder is reported for the first time. Thia powder was prepared from thermal power plant waste known as coal fly ash. 3-aminopropyltrimethoxysilane (APTMS) was covalently interacted with coal fly ash (CFA/APTMS) and curcumin (CUR) was encapsulated onto CFA/APTMS to give a novel and eco-friendly CFA/APTMS/CUR nanocomposite for LFPs detection with powder dusting method. Several instrumental techniques including Fourier-transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), UV-visible spectroscopy, scanning electron microscopy (SEM), energy-dispersive X-ray spectrometry (EDS), and transmission electron microscopy (TEM) were used to characterize this nanocomposite. The CFA/APTMS/CUR nanocomposite was applied as a forensic powder for the development of latent fingerprints (LFPs) images on various porous and non-porous substrates. Better fingerprint images with distinct patterns, high sensitivity, minimal background interference, and superior performance on a variety of surfaces for LFPs detection development were provided by this nanocomposite. These findings therefore proved that the powdered CFA/APTMS/CUR nanocomposite can be effectively utilized for the development of LFPs images at crime scenes and for the biometric identification of suspects through fingerprint comparison.
Source: Carbon Trends
Authors: E. PRABAKARAN, K. PILLAY
Language: English
Subfield: Safety Research
Field: Social Sciences
Domain: Social Sciences
Open Access status: gold
Estimated APC paid: $1,610
OpenAlex ID: W4404331999