Touch DNA Visible System Solution

 Touch DNA Visible System Solution:

l Reveal biological evidence: trace DNA, blood stain, sweat stain, semen stain, saliva stain, etc.

l Visible collection: skin cells, even trace amount of biological stains

l Rapid detection and anti-contamination: excellent cooperation between excitation light sources and filters to apply to different kinds of evidence material; Small-size long working distance Microscope Objectives Lens,

l Locate - Reveal - Recognize - visible sampling: specific biological stains based on certain fluorescence features, such as: the fluorecent feature of blood stain, the fluorescent feature of semen stain, the fluorescent feature of sweat stain etc.

l Trace amount of biological stains reveal and recognize: Invisible micron-size biological stain can be fluorescent and visible.

Trace DNA visible on fingerprint ridges



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TOUCH DNA Visualized Extraction System OR-GDNA1000

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 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...
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