Improving fingerprint detection with carbon-coated nanoparticles

Fingerprint detection is one of the most important techniques in forensic investigation. When fingerprints are dusted with a carbon-based powder, the material will adhere to the moisture and grease left behind by the unique ...

Research team designs small-scale 'chemical nose'

A living organism's nose is essentially a biological molecule detector that sends neurological signals to the brain, which then decodes a particular scent. Human noses, with six million olfactory receptors, can distinguish ...

How old is that fingerprint?

Forensic dramas on TV make it seem easy to determine when fingerprints were left at the scene of a crime. In reality, the oils in fingerprints degrade over time, and it's difficult to figure out their age. Now, researchers ...

No signs (yet) of life on Venus

The unusual behavior of sulfur in Venus' atmosphere cannot be explained by an "aerial" form of extra-terrestrial life, according to a new study.

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Fingerprint (disambiguation)

A fingerprint is a mark made by the pattern of ridges on the pad of a human finger. The term has been extended by metaphor to anything that can uniquely distinguish a person or object from another, including:

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