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Published byKaylee Graham Modified over 5 years ago


Presentation on theme: "UNIVERSITY COLLEGE DUBLIN DUBLIN CITY UNIVERSITY TYNDALL NATIONAL INSTITUTE Fig 1. Exampleschematic of a wireless sensor platform Current flow control."— Presentation transcript:

1 UNIVERSITY COLLEGE DUBLIN DUBLIN CITY UNIVERSITY TYNDALL NATIONAL INSTITUTE Fig 1. Exampleschematic of a wireless sensor platform Current flow control solutions in analytical platforms have high power consumption and are prone to mechanical failure. To scale down such analytical platforms and enable them to be incorporated into wireless sensor networks one needs revolutionary flow manipulation solutions[1]. Such solutions may come in the form of stimuli responsive materials. Novel stimuli-responsive materials can: Shrink Bend Move After appliying: Light Magnetic field Heat Using flow controllers made out of there material will dramatically reduce power consumption and size of the full device. (Fig. 1) Research in this field will allow better water quality and environment monitoring. Microfluidic platforms incorporating stimulus-responsive materials for Water Quality Analysis Introduction: Bartosz Ziółkowski, Kevin J. Fraser, Robert Byrne, Fernando Benito- Lopez and Dermot Diamond Aim: Generate and control liquid flow within microfluidic manifolds using smart, stimuli responsive materials. Development and characterisation of magnetic responsive materials Development and characterisation of photo responsive materials These are to be used later in a parallel project aimed at manufacturing actuators for microfluidics. Results: Conclusions: Magnetically actuated gels will be incorporated into microfluidic devices as pumping elements Photo-shrinking soft gels can work as valves in analytical devices sampling channels Both materials require minimum energy to activate: permanent magnets and low power consumption LEDs Non toxic and hazardous substances contained in these materials allow them to be used in environment monitoring Experimental: Magnetic responsive material Magnetic Fe3O4 particles were coated with polymer linking groups (Fig. 2) These coated particles and an acrylamide monomer were dissolved in a hydrophobic ionic liquid[2] and then heated to form a soft magnetically actuated gel (Fig. 3) Funding Acknowledgement This work is supported by the ATWARM grant (Marie Curie ITN, No. 238273) R. B., and D. D. acknowledge funding from Science Foundation Ireland (SFI) under the CLARITY CSET award (Grant 07/CE/I1147) (3-mercaptopropyl)trimethoxysilane MPTMS allyltrimethoxysilane ATMS Fe 3 O 4 Fig. 2. Schematic of the final nano particle. The grey outer shell consists of ATMS or MPTMS. Light responsive material: The same acrylamide and ionic liquid were linked with a light responsive spiropyran molecule Fig. 3. The spiropyran molecule opens up in ultraviolet light and closes in visible light Fig. 4. Magnetic gel contracts rapidly after placing above a permanent magnet but after removing the magnetic field the gel returns to its original shape quickly and reversibly White light Fig. 5. The photo-responsive gel shrinks as the contained spiropyran molecule closes in white light [3]. In this example the volume of the gel decrease by 30 %. [1] R. Byrne, F. Benito-Lopez and D. Diamond, Mater. Today, 2010, 13, 9-16. [2] K. J. Fraser and D. R. MacFarlane, Aust. J. Chem., 2009, 62, 309-321. [3] F. Benito-Lopez, R. Byrne, A. M. Raduta, N. E. Vrana, G. McGuinness and D. Diamond, Lab Chip, 2010, 10, 195-201. Marie Curie Initial Training Network
 July 12, 2012ITRS public conference – San Francisco1 More-than-Moore Roadmapping Update. Chapter 2 – Physical Science SYSTEMCONCEPT Practical Implementation of a Novel Wind Energy Harvesting Network N.R. Harris, D. Zhu, S.P. Beeby, J. Tudor, N. Grabham and N.M. White School. Liquid Crystal Elastomer Films and their Potential in Sensing Sarah Hicks EARS-IGERT project Lake Lacawac Workshop 2010. 1.Twist top casing to release top platform 2.Turn switch to on position 3.Wait 12 seconds for full injection 4.Turn switch to off position 5.Wait 4 minutes. Growth Opportunities October 8, Presentation to College of STEM Advisory Board. Atoms and Reactions Test 1a Biology Benjamin McMullin. FIG. 4-1 The heat content of a given substance depends upon both its mass and its temperature. A pail of cool water contains more heat than a cup of boiling. Division of Materials Science & Engineering Describe the arrangement of ions in a giant ionic structure. Supercritical Fluid Chromatography and Extraction UNIVERSITY COLLEGE DUBLIN DUBLIN CITY UNIVERSITY This material is based upon work supported by Science Foundation Ireland under Grant No. 03/IN3/1361 Computing. Stacking of Short DNA Controls Membrane Shape Evolution: The Gyroid Cubic- to-Inverted Hexagonal Transition in Lipid–Short DNA Assemblies Cyrus R. Safinya,

 Nano technology By: Eman youssif.