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A Primer on the Dynamical Systems Approach to Transport in Porous Media. Transp Porous Media 2022. [DOI: 10.1007/s11242-022-01811-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Lester DR, Kuan B, Metcalfe G. Simultaneous optimisation of residence time, heat and mass transfer in laminar duct flows. Chem Eng Sci 2018. [DOI: 10.1016/j.ces.2018.04.065] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Petkovic K, Metcalfe G, Chen H, Gao Y, Best M, Lester D, Zhu Y. Rapid detection of Hendra virus antibodies: an integrated device with nanoparticle assay and chaotic micromixing. LAB ON A CHIP 2016; 17:169-177. [PMID: 27921111 DOI: 10.1039/c6lc01263a] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Current diagnosis of infectious diseases such as Hendra virus (HeV) relies mostly on laboratory-based tests. There is an urgent demand for rapid diagnosis technology to detect and identify these diseases in humans and animals so that disease spread can be controlled. In this study, an integrated lab-on-a-chip device using a magnetic nanoparticle immunoassay is developed. The key features of the device are the chaotic fluid mixing, achieved by magnetically driven motion of nanoparticles with the optimal mixing protocol developed using chaotic transport theory, and the automatic liquid handling system for loading reagents and samples. The device has been demonstrated to detect Hendra virus antibodies in dilute horse serum samples within a short time of 15 minutes and the limit of detection is about 0.48 ng ml-1. The device platform can potentially be used for field detection of viruses and other biological and chemical substances.
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Affiliation(s)
- K Petkovic
- CSIRO Manufacturing, Private Bag 10, Clayton, Melbourne, VIC 3169, Australia.
| | - G Metcalfe
- CSIRO Manufacturing, Private Bag 10, Clayton, Melbourne, VIC 3169, Australia. and Swinburne University of Technology, Hawthorn, VIC 3122, Australia and Monash University, Clayton, VIC 3800, Australia
| | - H Chen
- CSIRO Manufacturing, Private Bag 10, Clayton, Melbourne, VIC 3169, Australia. and Harbin Institute of technology (Shenzhen), Shenzhen, Guangdong 518055, China
| | - Y Gao
- CSIRO Manufacturing, Private Bag 10, Clayton, Melbourne, VIC 3169, Australia.
| | - M Best
- CSIRO Manufacturing, Private Bag 10, Clayton, Melbourne, VIC 3169, Australia.
| | - D Lester
- RMIT University, Melbourne, VIC 3001, Australia
| | - Y Zhu
- CSIRO Manufacturing, Private Bag 10, Clayton, Melbourne, VIC 3169, Australia. and Harbin Institute of technology (Shenzhen), Shenzhen, Guangdong 518055, China and RMIT University, Melbourne, VIC 3001, Australia
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Baskan O, Speetjens MFM, Metcalfe G, Clercx HJH. Direct experimental visualization of the global Hamiltonian progression of two-dimensional Lagrangian flow topologies from integrable to chaotic state. CHAOS (WOODBURY, N.Y.) 2015; 25:103106. [PMID: 26520072 DOI: 10.1063/1.4930837] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Countless theoretical/numerical studies on transport and mixing in two-dimensional (2D) unsteady flows lean on the assumption that Hamiltonian mechanisms govern the Lagrangian dynamics of passive tracers. However, experimental studies specifically investigating said mechanisms are rare. Moreover, they typically concern local behavior in specific states (usually far away from the integrable state) and generally expose this indirectly by dye visualization. Laboratory experiments explicitly addressing the global Hamiltonian progression of the Lagrangian flow topology entirely from integrable to chaotic state, i.e., the fundamental route to efficient transport by chaotic advection, appear non-existent. This motivates our study on experimental visualization of this progression by direct measurement of Poincaré sections of passive tracer particles in a representative 2D time-periodic flow. This admits (i) accurate replication of the experimental initial conditions, facilitating true one-to-one comparison of simulated and measured behavior, and (ii) direct experimental investigation of the ensuing Lagrangian dynamics. The analysis reveals a close agreement between computations and observations and thus experimentally validates the full global Hamiltonian progression at a great level of detail.
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Affiliation(s)
- O Baskan
- Fluid Dynamics Laboratory, Department of Applied Physics, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - M F M Speetjens
- Energy Technology Laboratory, Department of Mechanical Engineering, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - G Metcalfe
- Commonwealth Scientific and Industrial Research Organisation, Melbourne, Victoria 3190, Australia; and Swinburne University of Technology, Department of Mechanical Engineering, Hawthorn VIC 3122, Australia
| | - H J H Clercx
- Fluid Dynamics Laboratory, Department of Applied Physics, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
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