Biomimetic Sniffing Improves the Detection Performance of a 3D Printed Nose of a Dog and a Commercial Trace Vapor Detector
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Biomimetic sniffing.pdf
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677.64 KB
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Checksum (MD5)
054e574b16248d1e2f5d17ae53bc8bac
Author(s)
Staymates, Matthew E.
MacCrehan, William A.
Staymates, Jessica L.
Gillen, Greg J.
Craven, Brent A.
Kunz, Roderick R
Mendum, Thomas H.e.
Ong, Ta-Hsuan
Geurtsen, Geoffrey P.
Date Issued
December 2016
Journal
Scientific Reports
Publisher
Nature Publishing Group
Citation
Staymates, Matthew E. et al. “Biomimetic Sniffing Improves the Detection Performance of a 3D Printed Nose of a Dog and a Commercial Trace Vapor Detector.” Scientific Reports 6.1 (2016): n. pag.
Version
Final published version
Abstract
Unlike current chemical trace detection technology, dogs actively sniff to acquire an odor sample. Flow visualization experiments with an anatomically-similar 3D printed dog’s nose revealed the external aerodynamics during canine sniffing, where ventral-laterally expired air jets entrain odorant-laden air toward the nose, thereby extending the “aerodynamic reach” for inspiration of otherwise inaccessible odors. Chemical sampling and detection experiments quantified two modes of operation with the artificial nose-active sniffing and continuous inspiration-and demonstrated an increase in odorant detection by a factor of up to 18 for active sniffing. A 16-fold improvement in detection was demonstrated with a commercially-available explosives detector by applying this bio-inspired design principle and making the device “sniff” like a dog. These lessons learned from the dog may benefit the next-generation of vapor samplers for explosives, narcotics, pathogens, or even cancer, and could inform future bio-inspired designs for optimized sampling of odor plumes.
MIT Department
Lincoln Laboratory
Terms of Use
Creative Commons Attribution 4.0 International License
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1038/srep36876
