Latent fingerprint development by using silver nanoparticles and silver nitrate-A comparative study.

The beginning of latent fingerprint development on porous surface was first achieved by silver nitrate (AgNO ) method. But the significantly increasing cost has caused forensic experts to look for an alternative means. Silver nitrate (AgNO ) is the main component in the synthesis of metal nanoparticles, namely silver nanoparticles (AgNPs).

Role of Nanomaterials for Forensic Investigation and Latent Fingerprinting-A Review.

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.