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Negative phototaxis behaviour of organic droplets in channels

Florea, Larisa orcid logoORCID: 0000-0002-4704-2393, Wagner, Klaudia, Wagner, Pawel orcid logoORCID: 0000-0003-1926-9862, Wallace, Gordon orcid logoORCID: 0000-0002-0381-7273, Officer, David, Benito-Lopez, Fernando orcid logoORCID: 0000-0003-0699-5507 and Diamond, Dermot orcid logoORCID: 0000-0003-2944-4839 (2013) Negative phototaxis behaviour of organic droplets in channels. In: The 17th International Conference on Miniaturized Systems for Chemistry and Life Sciences (MicroTAS), 27-31 Oct. 2013, Freiburg, Germany.

Abstract
Along the evolutionary path from single cells to multicellular organisms with a central nervous system, there are species of intermediate complexity that possess many autonomous cells programmed to respond to environmental stimuli. One of the more striking responses is phototaxis[1], in which motile organisms adjust their locomotory path according to the incident light in a finely controlled manner, either towards or against the light source (positive or negative phototaxis). Inspired by them we developed an inanimate/chemical system in which an organic droplet is self-propelled in response to a photo-stimulus. The centimetre-scale directional movement of the organic droplet on the aqueous solution is powered by the combination of photo-induced pH change and surface tension effects.
Metadata
Item Type:Conference or Workshop Item (Poster)
Event Type:Conference
Refereed:No
Uncontrolled Keywords:Phototaxis
Subjects:Biological Sciences > Cell biology
Physical Sciences > Chemistry
DCU Faculties and Centres:Research Initiatives and Centres > INSIGHT Centre for Data Analytics
Research Initiatives and Centres > CLARITY: The Centre for Sensor Web Technologies
Use License:This item is licensed under a Creative Commons Attribution-NonCommercial-Share Alike 3.0 License. View License
Funders:Science Foundation Ireland under the INSIGHT initiative, grant SFI/12/RC/2289 (INSIGHT), Australian Research Council, EU IRSES program
ID Code:19619
Deposited On:05 Nov 2013 14:14 by Larisa Florea . Last Modified 30 Jan 2019 11:37
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