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pro vyhledávání: '"Pavithra A. L. Wijethunga"'
Publikováno v:
NEMS
This work reports the experimental study of the dynamics of micro-droplets composed of two immiscible liquids and their separation into constituent phases in response to electrowetting-on-dielectric (EWOD) digital microfluidics (DMF) actuation. Separ
Autor:
Pavithra A. L. Wijethunga, Praveen Kunchala, Yasith S. Nanayakkara, Daniel W. Armstrong, Hyejin Moon
Publikováno v:
Analytical Chemistry. 83:1658-1664
This paper demonstrates a novel drop-to-drop liquid-liquid micro-extraction (DTD-LLME) device, which is based on an electrowetting on dielectric (EWOD) digital microfluidic chip. Droplets of two immiscible liquids, one of which is an ionic liquid, ar
Autor:
Hyejin Moon, Pavithra A. L. Wijethunga
Publikováno v:
2015 28th IEEE International Conference on Micro Electro Mechanical Systems (MEMS).
This paper introduces an advantageous self-mixing phenomenon created during the formation of aqueous two-phase systems in a digital microfluidic device, for the first time. The influence of such self-mixing on enhancement of on-chip extraction kineti
Autor:
Pavithra A. L. Wijethunga, Hyejin Moon
Publikováno v:
ASME 2012 Third International Conference on Micro/Nanoscale Heat and Mass Transfer.
Although there are several reports demonstrating the use of aqueous two-phase systems (ATPS) for biological sample separation in miniaturized devices, they only used ATPS prepared in macro scale by following the conventional way. Formation of ATPS in
Publikováno v:
2009 24th International Conference Image and Vision Computing New Zealand.
Developing robust computer vision algorithms to detect fruit in trees is challenging due to less controllable conditions, including variation in illumination within an image as well as between image sets. There are two classes of techniques: local-fe
Publikováno v:
2008 23rd International Conference Image and Vision Computing New Zealand.
This Paper investigates the use of digital image analysis techniques for developing an automated kiwifruit counting system. Three simple counting methods followed by a minimum distance classifier based segmentation technique in L*a*b colour space wer
Autor:
Pavithra A. L. Wijethunga, Hyejin Moon
Publikováno v:
Journal of Micromechanics and Microengineering. 25:094002
Aqueous two-phase systems (ATPSs) allow an advantageous aqueous two-phase extraction process (ATPE), a special type of liquid–liquid extraction. Compared with conventional liquid–liquid extraction using aqueous/organic extraction media, ATPE is k
Publikováno v:
Cryobiology. 63:323-324
Publikováno v:
Lab on a Chip; Jun2011, Vol. 11 Issue 13, p2212-2221, 10p