Modeling the Electrical Characteristics of Platinum Electrodes for use in Simultaneous Stimulation and Recording of Neurons
School Name
Governor's School for Science and Mathematics
Grade Level
12th Grade
Presentation Topic
Physics
Presentation Type
Mentored
Abstract
The most major obstacle to the simultaneous stimulation and recording of neurons is the difference between the energy required to artificially stimulate a neuron and the energy that the neuron releases when it fires. Though models have been generated for platinum electrodes that attempt to predict the extent to which this “noise” occurs in order to facilitate its removal, there are some that question the reliability of the concepts behind these models. In this project, we attempt to generate our own model for the electrical characteristics of platinum in terms of Access resistance (R) and Capacitance (C). We then test our model at a variety of different frequencies, amplitudes, and offsets and attempt to predict R and C. Our experimental setup consists a simple four electrode array of 100µm by 200 µm platinum electrodes, an NaCl solution, two 10 KΩ resistors, an oscilloscope, an arbitrary waveform generator, and a MatLab program.
Recommended Citation
Williams, Joseph, "Modeling the Electrical Characteristics of Platinum Electrodes for use in Simultaneous Stimulation and Recording of Neurons" (2018). South Carolina Junior Academy of Science. 75.
https://scholarexchange.furman.edu/scjas/2018/all/75
Location
Neville 306
Start Date
4-14-2018 11:00 AM
Presentation Format
Oral and Written
Modeling the Electrical Characteristics of Platinum Electrodes for use in Simultaneous Stimulation and Recording of Neurons
Neville 306
The most major obstacle to the simultaneous stimulation and recording of neurons is the difference between the energy required to artificially stimulate a neuron and the energy that the neuron releases when it fires. Though models have been generated for platinum electrodes that attempt to predict the extent to which this “noise” occurs in order to facilitate its removal, there are some that question the reliability of the concepts behind these models. In this project, we attempt to generate our own model for the electrical characteristics of platinum in terms of Access resistance (R) and Capacitance (C). We then test our model at a variety of different frequencies, amplitudes, and offsets and attempt to predict R and C. Our experimental setup consists a simple four electrode array of 100µm by 200 µm platinum electrodes, an NaCl solution, two 10 KΩ resistors, an oscilloscope, an arbitrary waveform generator, and a MatLab program.
