Role of Nanomaterials for Forensic Investigation and Latent Fingerprinting—A Review

Abstract

The imminent nanotechnology and progressive instrumentations together have vast applications in the field of forensic science. Few prominent examples are gold nanoparticles for improvising the efficiency of polymerase chain reaction and atomic force microscopy for examining ink and bloodstains. Characteristics like distinct ridge details of fingerprints could be obtained by applying different nanoparticles such as silver, zinc oxide, silicon dioxide, aluminum oxide, gold (with silver physical developer), europium, fluorescent carbon, and amphiphilic silica on a range of object surfaces, and among all, gold is most commonly used. Fingerprint is considered noteworthy evidence in any crime scene, and nano-based techniques hold immense future potential in fingerprint investigations. Therefore, this paper focuses on the applications of nanoparticles in developing and detecting the latent fingerprints.

Nanocellulose: Recent Fundamental Advances and Emerging Biological and Biomimicking Applications

“…[ 318 ] Such detection methods face substantial challenges due to their ineffectiveness under certain circumstances, toxicity and health hazards . [ 319 ] Therefore, several new materials and methods have recently been developed to detect latent fingerprints, [ 320 ] and have recently been reviewed. [ 321 ] One of the goals in LFP detection is to produce an optical contrast between the fingerprint ridges and the surface pattern.…”

Uso de TiO2 Dopado com Íons Terras-raras para Revelar Impressão Digital Latente

“…No entanto, esse não é o diferencial dos materiais TiO 2 :Eu 3+ :bpy e TiO 2 :Tb 3+ :bpy. Revelar impressão digital latente é possível com uma diversidade de pós, podendo esses pós apresentarem vantagens e desvantagens em função de sua natureza física e química 12 . O diferencial dos pós TiO 2 :Eu 3+ :bpy e TiO 2 :Tb 3+ :bpy é o fato destes materiais apresentarem emissão fotoluminescente na região do visível suficientemente alta para que sejam observadas a olho nu.…”

A review on the role of emerging revolutionary nanotechnology in forensic investigations

“…Most of the techniques from nanotechnology and Nano-forensics are to either analyze evidences of Nano-scale size or use the effects of the nanomaterial in recognizing, assembling, collecting or detecting evidence in criminal investigations. With regards to tools development as a new field of nano-forensics, Nanosensors have become one important novel tool to the forensic scientist in criminal investigations (Prasad et al, 2020a). This with many other products and effects of nanotechnology has helped unravel lots of mysteries regarding certain crimes through identification and analysis of evidence which hitherto would not be identified or would have taken long periods in recognition and analysis.…”

“…This (MMD) uses AuNPs through ionic interactions to bind to the fingermark residue. In recent times, there have been novel nanotechnology applications in fingerprint development such as zinc sulfide/cadmium selenide nanoparticles used to enhance and visualize fingermarks under UV light (Kaushik et al, 2017); the silver physical developer (Ag-PD) method, silica nanoparticles (SiO 2 -NPs) and aluminium oxide nanoparticles used in fingerprint development (Prasad et al, 2020b). Hairs and fibres: Evidences as minute as fibre and hair can be found by carefully and strategically searching the crime scene.…”