Researchers have developed a nanoneedle that releases quantum dots directly into the nucleus of a living cell when a small electrical charge is applied (Image: Min-Feng Yu)
We recently saw the potential for nanoneedles and quantum dots to treat skin cancer, however researchers at the University of Illinois have gone one step further. They have created a nanoneedle (an incredibly small needle) that allows them to peak into the nucleus of a cell. When subjected to an electrical charge, the needle injects quantum dots into the nucleus of a living cell. These quantum dots (nanoscale crystals with unique properties in terms of light emission) can be used to monitor microscopic processes and cellular conditions, aid the diagnosis of disease, and track genetic information from within the nucleus.