This title appears in the Scientific Report :
2013
Embedded Device for Simultaneous Recording and Stimulation for Retina Implant Research
Embedded Device for Simultaneous Recording and Stimulation for Retina Implant Research
Simultaneous stimulation and recording of retinal nerve cells with penetrating three dimensional multi-electrode arrays on a localized area is a demanding challenge in next generation retina implant research. Within the scope of this research we developed a device to stimulate a network of bi-polar...
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Personal Name(s): | Schlösser, Mario |
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Cota, Oscar / Heil, Roger / Brusius, Janis / Offenhäusser, Andreas / van Waasen, Stefan / Schiek, Michael | |
Contributing Institute: |
JARA-FIT; JARA-FIT Bioelektronik; PGI-8 Bioelektronik; ICS-8 Zentralinstitut für Elektronik; ZEA-2 |
Published in: | 2013 |
Imprint: |
2013
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Conference: | IEEE SENSORS 2013, Baltimore (United States of Amerika), 2013-11-03 - 2013-11-06 |
Document Type: |
Conference Presentation |
Research Program: |
Physics of the Cell Sensorics and bioinspired systems |
Publikationsportal JuSER |
Simultaneous stimulation and recording of retinal nerve cells with penetrating three dimensional multi-electrode arrays on a localized area is a demanding challenge in next generation retina implant research. Within the scope of this research we developed a device to stimulate a network of bi-polar cells and record retinal ganglion cells with a slight time gap to overcome long recording dead times and switching artifacts in common stimulation- and recording systems. The device contains a four channel stimulator capable of pushing arbitrary bi-polar charges into the tissue and a 16 channel commercial electrophysiology interface chip. The device is a miniaturized front-end for our former developed embedded wireless communicating sensor node. First tests in in-vitro retina slices from adult rat with our device show reliable recordings of ganglia cell activity below 1ms after the bi-polar cell stimulation. |