Biocompatible Electrodes
Biocompatible Electrodes - Related Videos
03:47
Implantation of a Flexible Biocompatible Probe in a Glioblastoma Mouse Model
0 Views •
2025
Source: Lefevre, M. C., et al., Flexible Organic Electronic Devices for Pulsed Electric Field Therapy of Glioblastoma. J. Vis. Exp. (2022)This video demonstrates the implantation of a flexible, biocompatible probe in a glioblastoma mouse model to deliver targeted pulsed electric field therapy for neurotherapeutic applications.
03:02
Standard Electrode Potentials
0 Views •
2020
On comparing the reactivity of silver and lead, it is observed that the two ionic species, Ag+ (aq) and Pb2+ (aq), show a difference in their redox reactivity towards copper: the silver ion undergoes spontaneous reduction, while the lead ion does not. This relative redox activity can be easily quantified in electrochemical cells by a property called cell potential. This property is commonly known as cell voltage in electrochemistry, and it is a measure of the energy which accompanies the charge...
08:29
Fabrication of Amperometric Electrodes
0 Views •
Cited by 8 •
2009
This protocol describes how to generate carbon fiber electrodes. The electrodes are subsequently used to detect catecholamine release from vesicles with carbon fiber amperometry.
07:12
Implanting an Electrode into the Subthalamic Nucleus of a Rat
0 Views •
2025
The video demonstrates a procedure for implanting an electrode into the subthalamic nucleus of a rat to deliver electrical stimuli.
01:17
Electrodes: Overview
0 Views •
2024
Electrochemical measurements are conducted in an electrochemical cell composed of various components that control and measure the current and potential. One fundamental component is electrodes, conductive materials that enable electron transfer reactions at their surfaces. There are two main types of electrodes in electrochemical cells. The first type, known as the working or indicator electrode, has a potential that is sensitive to the analyte's concentration and reacts to changes in the...
FAQs
Material composition and surface chemistry shape how the interface behaves in living tissue. They influence electrical contact, corrosion resistance, toxicity, and inflammatory responses, while flexibility and other mechanical properties affect how closely the device can accommodate tissue. Balancing these features helps preserve signal quality and stimulation control without increasing biological disruption during neural experiments or device use.
Neural activity occurs as ionic activity, whereas connected electronics process electrical signals. The electrode therefore serves as an interface between these domains, converting neural activity into recordable electronic signals. During stimulation, the function is reversed: controlled electrical currents are delivered to influence neural circuits. Reliable operation depends on maintaining this interface while limiting effects on tissue.
Long-term stability matters because a neural interface must continue recording or stimulating while remaining compatible with living tissue. Corrosion, toxic effects, and inflammatory responses can undermine that goal, and changes in mechanical behavior may also affect the tissue-device relationship. Improving durability and compatibility can support more precise measurements and safer, longer-lasting interactions with the nervous system.
They support several neuroscience goals, including measuring neural activity, interfacing with brain-computer systems, controlling prosthetic devices, and delivering therapeutic neuromodulation. These uses differ in immediate purpose, but all require a dependable exchange between neural tissue and electronics. Electrode compatibility and stability are especially relevant when recordings or stimulation must remain useful over extended periods.
Recording with these interfaces can provide access to neural activity in electronic form, allowing investigators to study how neural circuits behave. In contrast, stimulation experiments use controlled currents to modulate those circuits and examine resulting effects or therapeutic possibilities. Together, recording and stimulation make the electrodes useful for both observing neural function and actively influencing circuit activity.
In a brain-computer interface, the electrodes help translate neural activity into signals that can support prosthetic control. In therapeutic neuromodulation, they deliver controlled currents to influence neural circuits. Both applications depend on stable, tissue-compatible contact, but one emphasizes extracting information for device interaction, whereas the other emphasizes controlled intervention in neural activity.