2026
Aline Roberta Xavier da Silva: Cochlear implants as in vivo sensors – Electrochemical monitoring of the intracochlear microenvironment and electrode stability
| When |
Apr 28, 2026
from 05:15 PM to 06:00 PM |
|---|---|
| Where | Bernstein Center Freiburg, Hansastr. 9a, 79104 Freiburg, Lecture Hall |
| Contact Name | Martina Bacher |
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ABSTRACT
Cochlear implants (CIs) are the most successful neural prostheses, with more than one million users worldwide. They restore hearing by electrically stimulating the auditory nerve. Recently, we demonstrated that CI electrodes can also function as in vivo electrochemical sensors, enabling monitoring of the implant’s microenvironment, such as intracochlear oxygen levels and electrode condition. This sensing approach could provide insight into inflammatory processes and foreign body responses after implantation, adding monitoring capabilities beyond standard impedance measurements without requiring hardware modifications. Here, we investigate the feasibility of long-term electrochemical sensing using standard CI electrodes in awake rats. Deaf, bilaterally implanted rats were trained in a sound lateralization task.
Electrochemical measurements using combined amperometric and potentiometric sensing methods were performed under anesthetized and awake conditions while monitoring dissolved oxygen levels in real time. Our preliminary results show that intracochlear sensing is feasible in both states, yielding stable and repeatable measurements without affecting auditory performance. These findings demonstrate the feasibility of long-term intracochlear electrochemical sensing using standard CI electrodes, even in awake animals, and represent an important step toward future clinical application in CI patients.
Katharina Bracher: tba
| When |
Jun 23, 2026
from 05:15 PM to 06:00 PM |
|---|---|
| Where | Bernstein Center Freiburg, Hansastr. 9a, 79104 Freiburg, Lecture Hall |
| Contact Name | Martina Bacher |
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Yue Yang: tba
| When |
Jul 07, 2026
from 05:15 PM to 06:00 PM |
|---|---|
| Where | Bernstein Center Freiburg, Hansastr. 9a, 79104 Freiburg, Lecture Hall |
| Contact Name | Martina Bacher |
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Philippa Hennessey: tba
| When |
Jul 21, 2026
from 05:15 PM to 06:00 PM |
|---|---|
| Where | Bernstein Center Freiburg, Hansastr. 9a, 79104 Freiburg, Lecture Hall |
| Contact Name | Martina Bacher |
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Christos Galanis: Save the Date!
| When |
Jul 28, 2026
from 05:15 PM to 06:00 PM |
|---|---|
| Where | Bernstein Center Freiburg, Hansastr. 9a, 79104 Freiburg, Lecture Hall |
| Contact Name | Martina Bacher |
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Lukas Grünewald: Save the Date!
| When |
Oct 10, 2026
from 05:15 PM to 06:00 PM |
|---|---|
| Where | Bernstein Center Freiburg, Hansastr. 9a, 79104 Freiburg, Lecture Hall |
| Contact Name | Martina Bacher |
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Marsela Hakani: Save the Date!
| When |
Nov 03, 2026
from 05:15 PM to 06:00 PM |
|---|---|
| Where | Bernstein Center Freiburg, Hansastr. 9a, 79104 Freiburg, Lecture Hall |
| Contact Name | Martina Bacher |
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Ramya Rama: Save the Date!
| When |
Nov 24, 2026
from 05:15 PM to 06:00 PM |
|---|---|
| Where | Bernstein Center Freiburg, Hansastr. 9a, 79104 Freiburg, Lecture Hall |
| Contact Name | Martina Bacher |
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Richmond Crisostomo: tba
| When |
Jul 14, 2026
from 05:15 PM to 06:00 PM |
|---|---|
| Where | Bernstein Center Freiburg, Hansastr. 9a, 79104 Freiburg, Lecture Hall |
| Contact Name | Martina Bacher |
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Aadhar Sharma: tba
| When |
Oct 13, 2026
from 05:15 PM to 06:00 PM |
|---|---|
| Where | Bernstein Center Freiburg, Hansastr. 9a, 79104 Freiburg, Lecture Hall |
| Contact Name | Martina Bacher |
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