Researchers have developed a micro-sensor, dubbed an 'electronic tongue,' using graphene derived from waste tea leaves. This device can rapidly measure the theophylline concentration and pH of tea within one minute, offering potential applications in smart agriculture and food safety.
According to the National, at the initial stage, the project will cost between $2 and $5 million
Researchers at KAIST in South Korea have discovered how graphene oxide selectively attacks harmful bacteria while leaving human cells largely unaffected. The material binds to phosphatidylglycerol (POPG), a lipid found in bacterial membranes but not in human cells, causing bacterial membranes to destabilise and break apart. This mechanism helps explain the antibacterial effect of graphene-based products, including toothbrushes that have already sold over 10 million units, though researchers caution that real-world effectiveness varies and most evidence comes from laboratory and animal studies rather than human clinical trials.
