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Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.3/157044
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- Dielectrophoresis-Raman spectroscopy system for analysing suspended nanoparticles
- Chrimes, Adam F.; Kayani, Aminuddin A.; Khoshmanesh, Khashayar; Stoddart, Paul R.; Mulvaney, Paul; Mitchell, Arnan; Kalantar-Zadeh, Kourosh
- A microfluidic dielectrophoresis platform consisting of curved microelectrodes was developed and integrated with a Raman spectroscopy system. The electrodes were patterned on a quartz substrate, which has insignificant Raman response, and integrated with a microfluidic channel that was imprinted in poly-dimethylsiloxane (PDMS). We will show that this novel integrated system can be efficiently used for the determination of suspended particle types and the direct mapping of their spatial concentrations. We will also illustrate the system's unique advantages over conventional optical systems. Nanoparticles of tungsten trioxide (WO3) and polystyrene were used in the investigations, as they are Raman active and can be homogeneously suspended in water.
- Publication type
- Journal article
- Research centre
- Swinburne University of Technology. Faculty of Engineering and Industrial Sciences. Centre for Atom Optics and Ultrafast Spectroscopy
- Lab on a Chip, no. 5 (2011), pp. 921-928
- Publication year
- Royal Society of Chemistry
- Publisher URL
- Copyright © The Royal Society of Chemistry 2011. The authors give the Royal Society of Chemistry the exclusive right and licence throughout the world to edit, adapt, translate, reproduce and publish the Paper in all formats, in all media and by all means (whether now existing or in future devised). Published version of the paper reproduced here for non-commercial purposes only in accordance with the copyright policy of the publisher. This paper is made available for personal use only; no further reuse is permitted.