“Heart attacks require immediate medical intervention in order to improve patient outcomes, but while early diagnosis is critical, it can also be very challenging—and near impossible outside of a clinical setting,” said lead author Peng Zheng, an assistant research scientist at Johns Hopkins University. “We were able to invent a new technology that can quickly and accurately establish if someone is having a heart attack.”

The proof-of-concept work, which can be modified to detect infectious diseases and cancer biomarkers, is newly published in Advanced Science.