MSB Seminar: 3D Printed µ-Needle Electrode Arrays for Bioelectronic Applications

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Speaker: Sabine Zips, M.Sc; PhD student at the research group Neuroelectronics led by Prof. Bernhard Wolfrum

Time: January 14 2020, 1:00 pm 

Place: Munich School of BioEngineering (Lecture Hall E.126, Boltzmannstr. 11, 85748 Garching)

As an alternative to classical fabrication methods, additive manufacturing technologies have increasingly been used for the rapid prototyping of functional devices. Inkjet printing and aerosol-jet printing are prominent examples for processing functional inks, which have been widely applied for sensor development. One of their most intriguing feature is that they allow three-dimensional patterning of novel conductive materials in a short amount of time. Here, we present a fully printed three-dimensional µ-needle electrode array for bioelectronic applications. The fabrication process involves inkjet printing of the conductive feedlines and aerosol-jet printing of the 3D shaped electrode tips, called µ-needles, in a PEDOT:PSS-based composite ink containing multiwalled carbon nanotubes. The electrochemical response of the printed µ-needle electrode arrays is shown and a proof-of-concept recording of signals from cardiac muscle cells is demonstrated. In the future, cell-culture platforms with integrated µ-needle sensors can potentially be used for recording or stimulation in three-dimensional tissue cultures, which offers new possibilities for the development of organ-on-a-chip devices.

Program Winter Term 2019/20

Jan 14 202013:30Kirsten TaphornHerzen Group Grating-based spectral X-ray dark-field imaging

Jan 21 202013:00Jonathan RappGleich Grouptbd
Jan 28 202013:00Dominik WeidlichProf. Dimitrios Karampinostbd
Feb 04 202013:00Albert CronerHemmert Group tbd