Forensic Touch DNA Solution

 Web link:  https://www.lightmobile.com/touch_show.aspx?id=496 INTRODUCTION Human being’s exfoliated cells, although mostly are keratinocyte and cell nucleus have been degraded, in the case of sweating a lot and objects have tight touch/friction with skin, there will still retain a certain amount of nucleated epithelial cells, which are the main source of TOUCH DNA and can be used for DNA search and extraction. Touch DNA, also know as Trace DNA, is a forensic method for analysing DNA left at the scene of a crime, it only requires very small samples, for example from the skin cells left on an object after it has been touched or casually handled, or from footprints. Touch DNA analysis only requires s everal  cells from the outermost layer of human skin. The system uses UV-VIS-IR spectrums to search and visualized extract TOUCH DNA for evidence materials collected from crime scene. Especially for the trace DNA that are invisible to naked eyes and hidden in the complex and di...