NANOFIBER SCENT CARRIER
Abstract
Thenanofiber scent carriers prepared by electrospinning from poly-vinyl-butyral (PVB), poly-ε-polycaprolactone (PCL), poly-vinyl- alcohol (PVA) and nylon 6/6 were tested as materials for collecting and preserving cigarette tobacco olfactory trace. Nanofibre material can include polar groups on its surface that influence wettability and also attracting of specific molecules creating olfactory trace. Nanofibre material and Aratex were also morphologicaly compared by scanning electron microscope (SEM) where nanofibre carrier had from twenty-two times to thirty-six times smaller fibre diameter than Aratex fibres. Olfactory testing of nanofibre scent carriers were compared to Aratex as traditionally used material for collecting of olfactory traces in criminology. Olfactory tests were carried out by dogs with special training and by mass spectrometer. Olfactory tests carried out by dogs clearly proved that nanofibre scent carriers were able to collect and preserve olfactory trace of lower concentration despite of their lower weight compared to samples of Aratex material. Olfactory tests carried out by mass spectrometer affirmed better olfactory properties of nanofibre scent carriers compared to Aratex, when nanofibre scent carriers were able to preserve 9 of 14 specific molecules characteristic for cigarette tobacco compared to Aratex that was able to preserve only 5 of 14 specific molecules characteristic for cigarette tobacco. The experiments with olfactory trace detection with materials with a comparable mass are in progress.
Downloads
Published
Issue
Section
License
Copyright (c) 2019 Radek Divín
This work is licensed under a Creative Commons Attribution 4.0 International License.
Authors who publish with this journal agree to the following terms:
- Authors retain copyright and grant the journal right of the first publication with the work simultaneously licensed under a Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/) that allows others to share the work with an acknowledgment of the work's authorship and initial publication in CTJ.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal’s published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgment of its initial publication in this journal.
- Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website or ResearchGate) prior to and during the submission process, as it can lead to productive exchanges.
CTJ requires that all of the content of the manuscript has been created by its respective authors or that permission to use a copyrighted material has been obtained by the authors before submitting the manuscript to CTJ. CTJ requires that authors have not used any copyrighted material illegally, as for example a picture from another journal or book, a photo, etc. It is the author’s responsibility to use only materials not violating the copyright law. When in doubt, CTJ may ask the authors to supply the pertinent permission or agreement about the use of a copyrighted material.
The opinions expressed in CTJ articles are those of authors and do not necessarily reflect the views of the publishers or the Czech Society for Biomedical Engineering and Medical Informatics.