Odor

Researchers at the University of Pennsylvania have developed an electronic nose that may be able to sniff out signs of cancer from blood plasma samples. In tests, the device was able to detect a range of cancer types with over 90 percent accuracy.

Although we've already heard about plants that mimic the smell of rotten meat in order to attract scavengers, botanists have now discovered that a certain plant focuses that concept – it mimics the smell of dead beetles, to draw in one type of fly.

No matter how good we humans have made something, chances are nature did it better. Rather than compete, scientists have now tapped into a natural sensor with the Smellicopter, a drone that uses an antenna from a live moth to sniff out its targets.

It's a quandary – leafcutter ants cause a great deal of damage to crops, but applying pesticides to those crops harms the environment. Scientists have developed a possible solution, in the form of a high-tech material that uses an odor to trap ants.

Body odor is an unpleasant fact of life we’ve all experienced in some way. Bacteria in the armpit have long been known to be the stinky culprits, and now scientists have discovered a “BO enzyme” in these bugs that’s responsible for the worst of it.

Scientists have already observed that rats will readily share food with other rats who are hungry. A new study now suggests that they do so not just based on what the other rat does, but also on how it smells.

Scientists have understood for several years how linking learning to specific odor cues can enhance memory if the same smells are then presented during a specific sleep phase. New researcn has now verified the method in a cohort of school students.

Although chemicals, foods and other odorous substances are often sold in recyclable plastic containers, sometimes the smells absorbed by the plastic make it unsuitable for recycling. A new process, however, is claimed to get the stink out.

A chemical derived from fungi has been shown to be effective at stopping skunk spray from stinking.

​A team of scientists has solved the mystery of the strange Parkinson's disease smell, revealing a number of skin-secreted volatile biomarkers can be detected in patients suffering from the disease. The next step for the research is to turn this discovery into an early-detection tool.

​In real life, you don't just see and hear things – you also smell them. Therefore, given that virtual reality (VR) headsets are meant to replicate real-world experiences, shouldn't they provide odors along with sights and sounds? That's the idea behind the smelly new Vaqso VR system.

​Currently, in order to check if someone has malaria but isn't showing any symptoms yet, a blood sample has to be drawn and analyzed. Thanks to an ongoing research project, however, it may soon be possible to detect the disease on the spot within seconds – using sniffer dogs.