Abstract

The use of science in the criminal justice system is known as forensic science. Justice is upheld through a proper analysis and assessment of the evidence. Due to factors like fire, explosion, environmental changes, water, dirt, and many others, crime scenes are usually damaged. The most reliable method of identifying a person is by their fingerprints, which is also one of the evidence types that are most frequently found at crime scenes. The perpetrator frequently makes a concerted effort to destroy a fingerprint that contains crucial evidence. Due to their extreme sensitivity, nanoparticles are used to improve latent fingerprints on porous, semiporous, and nonporous surfaces. The problem with the traditional fingerprint development technique is that it is not that durable for a longer period of time. The particle size of the black powder and the other nano traditional powders are much more as compared to the size of the particles. In addition to adhesives, titanium dioxide (TiO2), a common paint pigment, can be suspended in a surfactant and utilized as a powder suspension to remove latent impressions from a variety of surfaces. It is a tiny, non-flammable, non-toxic powder that is white in color and smaller than one micron in diameter. Aflatoxin genes can be identified using forensic genetics by adding silver and titanium dioxide nanoparticles to real-time PCR. It can also be used to detect explosives. Similarly, there are other applications as well. Therefore, this review paper will discuss the use of titanium dioxide nanoparticles in forensic research.

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