Odor

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.

That unpleasant "cheesy" odor emanating from sneakers after a run is probably caused by bacteria on the skin that feed on sweat and produce isovaleric acid. You could try and mask the smell or use anti-bacterial soap on your feet, but Panasonic has another way – the MS-DS100 shoe deodorizer.

​Could scent-tracking sniffer dogs be out of a job? Well, perhaps eventually. Scientists from Japan's Kyushu University have developed a prototype robot that can detect and follow odors left on the ground, such as those deposited in footprints.

​It's important for us to be able to detect odors such as those emitted by spoiled food. However, what if there were a low-cost "electronic nose" that was better at detecting those things, providing us with an earlier warning? That's what's being developed at the Karlsruhe Institute of Technology.

​Diagnosing symptomatic carriers of malaria is difficult enough, needing careful examination of blood samples, but picking up asymptomatic carriers is even more challenging.​ A team set out to find a way to diagnose those asymptomatic malaria carriers and the key turned out to be in body odor.​

A new long-term study by researchers at Michigan State University has provided evidence that a straightforward scratch-and-sniff test could effectively direct doctors towards those with a high risk of developing Parkinson’s years before the disease exhibits notable symptoms.

Along with the usual desks and blackboards, primary school classrooms may soon be equipped with something a little less traditional – rosemary essential oil. According to a study recently conducted by a team from Northumbria University, the scent of the herb boosts children's working memory.