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Wireless sensor

United States Patent

February 9, 2016
View the Complete Patent at the US Patent & Trademark Office
Disclosed is a sensor for detecting a target material. The sensor includes a ferromagnetic metal and a molecular recognition reagent coupled to the ferromagnetic metal. The molecular recognition reagent is operable to expand upon exposure to vapor or liquid from the target material such that the molecular recognition reagent changes a tensile stress upon the ferromagnetic metal. The target material is detected based on changes in the magnetic switching characteristics of the ferromagnetic metal caused by the changes in the tensile stress.
Lamberti; Vincent E. (Oak Ridge, TN), Howell, Jr.; Layton N. (Knoxville, TN), Mee; David K. (Knoxville, TN), Sepaniak; Michael J. (Knoxville, TN)
Consolidated Nuclear Security, LLC (Reston, VA), University of Tennessee Research Foundation (Knoxville, TN)
14/ 493,811
September 23, 2014
GOVERNMENT RIGHTS The U.S. Government has rights to this invention pursuant to contract number DE-NA0001942 between the U.S. Department of Energy and Consolidated Nuclear Security, LLC.