Checking blood oxygen, sodium and glucose levels could soon be as simple as taking a picture on an iPhone. Dr. Heather Clark, associate professor of pharmaceutical sciences at Northeastern, led a team that developed technology that can provide instant blood level readings by scanning a tattoo under the user’s skin. The technology, originally intended to replace finger pricks and electronic meters, could also be used to track blood iron levels and monitor medication levels.

The user would be injected with tiny particles that would link themselves to glucose and other contents of the blood, leaving an invisible tattoo under the skin. Using an iPhone camera, the user would scan the tattoo and quickly get a reading. Clark’s team is still researching the technology, which has not yet been tried on humans, according to Wired Magazine.

Former Husky running back signs NFL contract

John Griffin, a former Northeastern running back, signed a contract with the Cinncinnati Bengals of the NFL and will attend the team’s summer training camp. Griffin was selected for the All-CAA team in 2009 while at Northeastern. When the university dropped its football program, Griffin transferred to the University of Massachusetts-Amherst.