Wireless gas detection with a smartphone via rf communication
Abstract
This paper describes the first example of an adaption of near-field communication (NFC) technology—in 0.5 billion modern smartphones and mobile devices installed in 2014—toward portable, wireless, non-line-of-sight gas phase chemical sensing. We demonstrate the ability to convert inexpensive commercial NFC tags into chemical sensors that detect and discriminate analytes at part-per-thousand and part-per-million concentrations. This effort merges rational design of conductive nanostructured materials for selective chemical sensing with portable and widely distributed NFC technology to deliver a new method of acquiring chemical information about an NFC tag’s local environment. This paper introduces a concept for distributed chemical sensing by the growing number of people that carry NFC-enabled smartphones, tablets, and other smart devices.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Dec 08, 2014
- Source ID
- 10.1073/pnas.1415403111
Entities
People
- Jens B. Ravnsbæk
- Joseph M. Azzarelli
- Katherine A. Mirica
- Timothy M. Swager
Organizations
- Army Research Office
- Massachusetts Institute of Technology
- National Institutes of Health