A New Methodology For Fingerprints

A New Methodology For Fingerprints

A New Methodology for Fingerprints The article I chose to research for my final capstone project was an article that was published by the Forensic Science International and was written by Helio Barros and Valter Stefani. The title of this article is "A New Methodology for the Visualization of Latent Fingermarks on the Sticky Side of Adhesive Tapes Using Novel Fluorescent Dyes". A little bit of abstract about what the paper and the experiments are about is that there are three novel fluorescent dyes that were tested in numerous experiments for the detection of latent fingerprints. These dyes were tested on different types of adhesive tapes that varied in color. These dyes that were used are highly selective to fingerprints, do not need any ... Show more content on Helpwriting.net ...A method that is used today for the visualization of latent fingerprints is a process of applying a dye called Crystal Violet. Crystal Violet reacts with the fatty acids and lipids in your sweat and as a result it produces a purple color. Although this process is used in the forensic science field today, it has its limitations. The intense purple color of the dye sometimes results in the entire tape being stained and as a result the entire fingerprint is ruined and can't be analyzed. The people in this article wanted to find a better solution for the visualization of latent fingerprints that performed better than the methods that we currently use today. This is where the introduction of the new dyes comes into the article. The fluorescent dyes that are reported in this article can overcome the limitations that we currently have with Crystal Violet and other commercial dyes. The Fluorescent dyes that were used in the study in the article are named HB–7, HB–9, and HB–11. All of these dyes were synthesized and purified in a laboratory and are currently patent pending. All the dyes used in this experiment are water soluble and fluorescent in the blue–green region when exposed to ultra violet light at 365nm. Alongside the dyes that were used in this study, four different types of adhesive tapes were also used ranging from different colors. Tape ID A that was used was Scotch Tape that was

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