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The exciting potential of stimuli-responsive materials and biomimetic microfluidics

Florea, Larisa and Francis, Wayne and Coleman, Simon and Dunne, Aishling and Diamond, Dermot (2015) The exciting potential of stimuli-responsive materials and biomimetic microfluidics. In: EuroNanoForum Sensors Workshop, 10-12 June 2015, Riga, Latvia.

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Our capacity to create and characterise structures with 3D spatial control ranging from molecular scale through nano, to micro and even macro dimensions opens exciting new opportunities to understand and mimic the molecular world of biology and chemistry. For example, complex 3D structures can now be formed from soft gel-polymers with sub-micron resolution, enabling pores with pre-determined topographies to be created within films and beads. When these polymers incorporate a photo-switchable or chemo-switchable moiety, the pore dimensions can be controlled using light or changes in the local chemical environment. This in turn enables uptake or transfer of material through the pores to be controlled, in a manner similar to many bio-systems. Furthermore, nano-dimensioned features can be created inside microfluidic channels to produce soft polymer actuators for fluid control, or channels with switchable characteristics such as surface roughness [1], or controlled uptake and release of molecular guests. In addition, fluidic coatings can optically report their condition (e.g. whether they are in binding or passive form, or molecular guests are bound) reflecting the chemical status along the entire length of the fluidic system, rather than at a localised detector [2]. The same characteristics can be integrated into micro-vehicles such as droplets, beads and vesicles, or microrobots that can also move spontaneously or be externally directed to specific locations, where they can perform these and other tasks [3, 4]. In this paper, we will present routes through which these exciting concepts can be practically realized. References 1. J.E. Stumpel, B. Ziolkowski, L. Florea, D. Diamond, D.J. Broer, A. Schenning, Acs Applied Materials & Interfaces, 6 (2014) 7268-7274. 2. L. Florea, C. Fay, E. Lahiff, T. Phelan, N.E. O'Connor, B. Corcoran, D. Diamond, F. Benito-Lopez, Lab on a Chip, 13 (2013) 1079-1085. 3. L. Florea, K. Wagner, P. Wagner, G. G. Wallace, F. Benito‐Lopez, D. L. Officer, D. Diamond, Adv. Mater. 26, 7339 (2014). 4. W. Francis, C. Fay, L. Florea, D. Diamond, Chem. Commun. 51, 2342 (2015).

Item Type:Conference or Workshop Item (Invited Talk)
Event Type:Workshop
Uncontrolled Keywords:Environmental monitoring
Subjects:Engineering > Materials
Physical Sciences > Analytical chemistry
Biological Sciences > Microfluidics
Physical Sciences > Nanotechnology
DCU Faculties and Centres:DCU Faculties and Schools > Faculty of Science and Health > School of Chemical Sciences
Research Initiatives and Centres > INSIGHT Centre for Data Analytics
Research Initiatives and Centres > National Centre for Sensor Research (NCSR)
Use License:This item is licensed under a Creative Commons Attribution-NonCommercial-Share Alike 3.0 License. View License
Funders:European Framework Programme 7, Science Foundation Ireland, Enterprise Ireland
ID Code:20657
Deposited On:16 Jun 2015 11:14 by Dermot Diamond. Last Modified 26 Apr 2017 11:42

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