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International Helmholtz Research School
of Biophysics and Soft Matter

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Nanoelectrochemical interfaces
We develop and investigate new chip-based interfaces for bioelectronic applications based on nanofabrication technologies. Specifically we are interested in establishing electrochemical tools for the communication with cells and cellular networks. To this end we investigate redox cycling techniques, which benefit from fast diffusion processes on the nanometer scale. Efficient redox cycling approaches in confined geometries, such as nanofluidic channels, show interesting physical phenomena and allow for very sensitive electrochemical detection. Our goal is to develop biohybrid systems based on these tools to study the release of neurotransmitters. At the same time we are exploring the application of nanopatterned interfaces for functional coupling to cells based on electrical and chemical communication. The figure shows an electroactive cell growing on Au nanopillars.

Bernhard Wolfrum, Andreas Offenhäusser

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