Fingerprint

Just like fingerprints, your breathing patterns may be unique. Scientists found they can identify people using only breathing patterns. And it's not just identification, researchers can predict BMI, and anxiety or depression from the way you breathe.

The world's oldest human fingerprint has been discovered at an archaeological site in Spain. The fingerprint was dated at 43,000 years old and is believed to have come from a Neanderthal.

A question from a curious kid quickly led a team of scientists down a research rabbit hole – one that has now culminated in fascinating new knowledge about our water-wrinkled fingertips. And there's more to this discovery than a cool piece of trivia.

An experimental new forensic spray allows latent fingerprints to be made visible in just 10 seconds, plus it doesn't require the use of any messy powders. What it does incorporate, however, is a glowing protein that's obtained from jellyfish.

When someone is using antipsychotic drugs, it's important that they take the correct dosage, and that they don't abruptly stop taking the medication. Soon, a fingerprint sweat test could be used to check that such people are following instructions.

A 'safe' handgun is a relative term, but Colorado-based Biofire Technologies is taking a high-tech crack at the idea with its Biofire Smart Gun, which uses an electronic identification and firing system to prevent accidental or unauthorized use.

Even if someone's fingerprints are found on an incriminating document, that person may claim that they handled the blank paper before the criminal printed anything on it. A new technique, however, can now be used to check if that really was the case.

It would be great if forensics teams could easily lift fingerprints off of bullet casings left at crime scenes, but unfortunately doing so is often very difficult. A new technique developed at the University of Nottingham could change that.

Finding a person's fingerprints at a crime scene isn't always enough to convict them, as they can claim that those prints were left before the crime took place. That may be about to change, as scientists have devised a method of dating fingerprints.

​More and more, we're seeing bike locks that open not with a key or combination, but with a fingerprint or Bluetooth signal. Almost all of those, however, are U-locks. What if you prefer the more compact form factor and wider reach of a folding lock? Well, that's where the ZiiLock comes in.

​As many a fancy-refrigerator-owner will know, fingerprints tend to be highly visible on stainless steel. A new transparent coating could help, however, as it goes about reducing the appearance of prints in three ways.

Italian company Agazzi Designs has integrated some high-tech thinking into what it bills as the first urban backpack with an anti-theft fingerprint scanner, built to ensure only those with the correct prints gain access to its contents. ​