Engineers at Rice University have created groundbreaking nanoelectrodes that are set to enhance brain stimulation therapies.
The nanoelectrodes provide precise and minute electrical pulses, enabling controlledexcitation. In addition, compared to traditional electrodes, they need a significantly reduced current for neuronal activation, achieving an order of magnitude improvement.
The comparison is evident when one looks at the current state of brain stimulation therapies. Traditional implantable electrodes, used for treating conditions such as Parkinson's disease, epilepsy, and obsessive-compulsive disorder, often cause adverse tissue reactions and unintended alterations in neural activity.
Chong Xie, a corresponding author of the study and an associate professor of electrical and computer engineering, likened the effect of traditional electrodes to "blowing an airhorn in everyone's ear or having a loudspeaker blaring" in a room full of people. In contrast, the nanoelectrodes developed at Rice offer more precision and less disruption.The advanced control over signal frequency, duration, and intensity could open the door to innovative sensory prosthetic devices.
Starting from July 1, Luan will assume the position of associate professor. Under his leadership, the team has published a series of research papers demonstrating the electrode's capability to facilitate improved recording of brain activity over extended periods. Roy Lycke, a postdoctoral associate in electrical and computer engineering, and Robin Kim, a graduate student, have led the study. Lycke and Kim have played vital roles in conducting the research, supported by the National Institute of Neurological Disorders and Stroke and Rice internal funds.
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