Study on the Application of Silver Chloride Nanoparticles for the Detection of Diluted Biological Fluids and Development of Latent Prints

Forensic science has been playing an important role in the justice administration system^1,2. Some of the most important evidences such as fingerprints, blood and semen have been easily detected with the available techniques^2,3. There are certain conditions in which these are beyond the ability of the human eye for the purpose of visualization and analysis. These could be made visible with the application of nanoparticles^6,7. In this study, an effort has been made to make the latent prints visible by using silver chloride nanoparticles. Though silver compounds are costlier, they could be used for this purpose as they are more effective in such circumstances wherein the evidences are well diluted.