The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 16, 2026
Filed:
May. 01, 2023
Massachusetts Institute of Technology, Cambridge, MA (US);
Alexander I. Peraire-Bueno, Cambridge, MA (US);
Anastasios John Hart, Cambridge, MA (US);
Massachusetts Institute of Technology, Cambridge, MA (US);
Abstract
Radio Frequency Identification (RFID) tags having functionalized carbon nanotubes (CNTs) engineered to change in resistance when exposed to a variety of analytes to provide an inexpensive framework for distributed sensing. For example, a printing process can be developed for liquid inks comprising CNTs, and RFID sensors can be fabricated with functionalized CNTs as the active elements. The tags can work independent of distance and can sense changes in resistance of a sensing element. The tags can include an antenna with an inductive loop and two sets of dipole arms having functionalized carbon nanotubes, and a RFID chip that separates the two sets of dipole arms. The dipole arms can capture an analyte on a plurality of sensors and generate a plurality of resonant peaks therefrom. The peaks can be analyzed by comparing the damping therebetween, or by shifting the resonant frequency of the tag to determine presence of the analyte.