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Video-based fractional order identification of diffusion dynamics for the analysis of migration rates of polar and nonpolar liquids: water and oil studies

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Andrade, S. I. E., Galvao, R. K. H., Araujo, M. C. U. and Hadjiloucas, S. ORCID: https://orcid.org/0000-0003-2380-6114 (2021) Video-based fractional order identification of diffusion dynamics for the analysis of migration rates of polar and nonpolar liquids: water and oil studies. Review of Scientific Instruments, 92. 035106. ISSN 0034-6748

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To link to this item DOI: 10.1063/5.0010988

Abstract/Summary

Diffusion dynamics of water and oil are observed in real-time using video images. Savitzky–Golay derivative filtering ensures accurate localization of the liquid front. System identification demonstrates that a fractional-order model with only two parameters may be used to describe the dynamics of the diffusion process. The method paves the way for video-based cellulose filter paper microfluidics and lateral flow assays, which are low cost and have broad diagnostic applications.

Item Type:Article
Refereed:Yes
Divisions:Life Sciences > School of Biological Sciences > Department of Bio-Engineering
ID Code:97620
Publisher:AIP
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