A study published in Nature Nanotechnology has introduced a new wearable biosensor for monitoring fertility hormones, notably oestradiol, in human sweat. This device, resembling a ring and worn on the finger, offers a non-invasive alternative to traditional blood tests for hormone monitoring. The biosensor combines microfluidics, nanoelectronics, and a class of molecules known as aptamers. These aptamers, short strands of DNA or…
