Fentanyl sensor (IMAGE) University of Pittsburgh Caption Alexander Star has developed a fentanyl sensor that is six orders of magnitude more sensitive than any electrochemical sensor for the drug reported in the past five years. Credit Aimee Obidzinski/PITT Usage Restrictions Use allowed with attribution License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.