DOI: https://doi.org/10.29363/nanoge.aohm.2019.003
Publication date: 8th January 2019
The importance of studying biological systems in 3D as opposed to 2D is now clear. The difficulty lies with standard biological techniques and assays that are unable to adapt to 3D formats. Polymeric electroactive materials and devices can bridge the gap between hard inflexible materials used for physical transducers and soft, compliant biological tissues. In this presentation, I will discuss our recent progress in adapting conducting polymer devices, including simple electrodes and transistors, to integrate with 3D cell models. We go further, by generating 3D electroactive scaffolds capable of hosting and monitoring cells. Alongside the monitoring we attempt to add to the repertoire of tissue engineers by integrating electrical cues alongside the biochemical and mechanical cues. Electrical cues have a demonstrated role in development, not just for electrogenic tissues but for all tissues. To enable the trifecta of stimuli necessary for recreating tissues in vitro, we have generated conducting polymer scaffolds blended with biopolymers such as collagen. I will show evidence that these structures can not only monitor tissue formation but impact differentiation of the cells on the structures. Zooming in at the subcellular level I will also talk about our recent work on biomimetic lipid membranes integrated with organic electronic devices to readout out transmembrane protein function.
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