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Regina Bailey

Bacterial DNA Fingerprint

By April 8, 2010

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Image: Luigi Diamanti / FreeDigitalPhotos.net

Researchers from the University of Colorado at Boulder have shown that bacteria found on the skin can be used as personal identifiers. This is possible because the bacteria that reside on a person's hands are unique, even among identical twins. These bacteria are left behind on the items we touch. By genetically sequencing bacterial DNA, specific bacteria found on surfaces can be matched to the hands of the person from which they came. These bacteria can be used as a type of fingerprint because of their uniqueness and their ability to remain unchanged for several weeks.

In the study, the research team swabbed computer keyboards from individual users. They were able to match specific bacteria from the keyboards to bacteria found on the fingertips of individual users. In a similar test, the research team was able to match keyboard mice to their users after analyzing bacteria swabbed from the palms of each user's hands. The researchers believe that their method of bacterial analysis could be a useful tool in forensic identification when human DNA or clear fingerprints can not be obtained.

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April 9, 2010 at 8:59 am
(1) Qwick from Tampa Fl says:

Wow this is great. I see a future where science will bring us all back to a sort of “Garden of Eden” and “Fountain of Youth”. The future looks very exciting!

April 17, 2010 at 11:42 pm
(2) Shalini says:

wow this is truly a great topic ( Bacterial DNA Fingerprint) ..please can you provide me with some research papers on this topic as i plan to give a seminar in my institution on this topic. I am a student of Microbiology doing my masters. Please help

April 18, 2010 at 7:29 am
(3) Oumer Abdie says:

Realy it is a good and better invention for DNA finnger printing.
Now the time is up for those who are gangsters(their bacteria will expose the owner)
But, what will be if the persone wears a glove when touch something?

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