MEAs and 3D nanoelectrodes: electrodeposition as tool for a precisely controlled nanofabrication. (31st January 2017)

• Record Type: Journal Article
• Authors: Weidlich, Sabrina; Krause, Kay J; Schnitker, Jan; Wolfrum, Bernhard; Offenhäusser, Andreas
• Is Part Of: Nanotechnology. Volume 28:Number 9(2017)
• Publication Date: 2017-01-31
• Subjects: microelectrode arrays -- 3D nanoelectrodes -- electrodeposition; Nanotechnology -- Periodicals; Nanotechnology -- Periodicals; Nanotechnology; Publications périodiques; Nanotechnologies; Periodicals; 620.5
• DOI: 10.1088/1361-6528/aa57b5
• Languages: English
• ISSNs: 0957-4484

Abstract

Abstract: Microelectrode arrays (MEAs) are gaining increasing importance for the investigation of signaling processes between electrogenic cells. However, efficient cell–chip coupling for robust and long-term electrophysiological recording and stimulation still remains a challenge. A possible approach for the improvement of the cell–electrode contact is the utilization of three-dimensional structures. In recent years, various 3D electrode geometries have been developed, but we are still lacking a fabrication approach that enables the formation of different 3D structures on a single chip in a controlled manner. This, however, is needed to enable a direct and reliable comparison of the recording capabilities of the different structures. Here, we present a method for a precisely controlled deposition of nanoelectrodes, enabling the fabrication of multiple, well-defined types of structures on our 64 electrode MEAs towards a rapid-prototyping approach to 3D electrodes.