| Title: | Wireless Tags with Hybrid Nanomaterials for Volatile Amine Detection |
| Author(s): | Andre RS; Ngo QP; Fugikawa-Santos L; Correa DS; Swager TM; |
| Address: | "Department of Chemistry and Institute for Soldier Nanotechnologies, Massachusetts Institute of Technology, Cambridge, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States. Nanotechnology National Laboratory for Agriculture (LNNA), Embrapa Instrumentacao, 13560-970 Sao Carlos, Sao Paulo, Brazil. Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States. Institute of Geosciences and Exact Sciences, Sao Paulo State University (UNESP), 13506-700 Rio Claro, Sao Paulo, Brazil" |
| DOI: | 10.1021/acssensors.1c00812 |
| ISSN/ISBN: | 2379-3694 (Electronic) 2379-3694 (Linking) |
| Abstract: | "Quality control in the production and processing of raw meat is currently one of the biggest concerns for food industry and would benefit from portable and wireless sensors capable of detecting the onset of spoilage. Raw meat is a natural source of biogenic and volatile amines as byproducts of decarboxylation reactions, and the levels of these compounds can be utilized as quality control parameters. We report herein a hybrid chemiresistor sensor based on inorganic nanofibers of SiO(2):ZnO (an n-type material) and single-walled carbon nanotubes functionalized with 3,5-dinitrophenyls (a p-type material) with dosimetric sensitivity approximately 40 times higher for amines than for other volatile organic compounds, which also provides excellent selectivity. The hybrid nanomaterial-based chemiresistor sensory material was used to convert radio-frequency identification tags into chemically actuated resonant devices, which constitute wireless sensors that can be potentially employed in packaging to report on the quality of meat. Specifically, the as-developed wireless tags report on cumulative amine exposure inside the meat package, showing a decrease in radio-frequency signals to the point wherein the sensor ceased to be smartphone-readable. These hybrid material-modified wireless tags offer a path to scalable, affordable, portable, and wireless chemical sensor technology for food quality monitoring without the need to open the packaging" |
| Keywords: | "Amines Food Quality *Nanostructures *Nanotubes, Carbon Silicon Dioxide amine sensing carbon nanotubes inorganic nanofibers radio-frequency identification wireless sensing;" |
| Notes: | "MedlineAndre, Rafaela S Ngo, Quynh P Fugikawa-Santos, Lucas Correa, Daniel S Swager, Timothy M eng Research Support, Non-U.S. Gov't 2021/06/11 ACS Sens. 2021 Jun 25; 6(6):2457-2464. doi: 10.1021/acssensors.1c00812. Epub 2021 Jun 10" |
