Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 7 of 7 for “"Bioelektronik"”.
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Optimierte Immobilisierung von Redoxproteinen an funktionale Elektrodenoberflächen für die molekulare Bioelektronik
Within the last decade, protein electrochemistry at miniaturized electrodes has gained in importance, not only for the study of the charge transfer properties of redox proteins, but also for developing novel biosensor and bioelectronic devices with enhanced sensitivity and selectivity. The major …
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Communicating with electrogenic cells
Non-invasive and reliable communication with electrogenic cells is comprised of several techniques from dierent elds of research. Cellular signals need to be sensed and recorded utilizing extracellular recording devices with a temporal resolution that is higher than the duration of a single action …
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Nanostrukturierte Metallelektroden zur funktionalen Kopplung an neuronale Zellen
The focus of this dissertation was to develop and investigate nanostructured gold interfaces for signal recordings from electroactive cells. Currently, the use of planar microelectrode arrays (MEAs) is an established technique for such extracellular recordings. However, a high impedance and a low …
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Silicium Nanodrähte für die extrazelluläre Ableitung elektrischer Aktivität
Due to their high surface-to-volume ratio silicon nanowires are promising candidates for highly sensitive biosensors. We designed and fabricated nanowire transistors suitable for the extracellular detection of electrical activity. These sensors were characterized thoroughly and tested with HL-1 and …
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Extracellular stimulation of individual electrogenic cells with micro-scaled electrodes
The interface between biological and electronic information processing within bioelectronic hybrid systems is an exciting field of research. From an application point of view, it offers the possibility to develop and improve neuroprosthetic devices, e.g. for medical use. In basic neuroscience it …
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Design, development and evaluation of a high spatial density CMOS chip for bidirectional communication with electrogenic cells
In this project, we present 2 CMOS chips designed in our institute with the aim of establishing a bio-electronic interface with electrically active cells. A measurement and control setup consisting of electronic components responsible for the control of the chips as well as the digitizazion and …