New Publication: Microscopic modeling of skin
Electrode design is necessary for efficacy and safety in transcranial direct current stimulation. However, previous computational models omitted microscopic structures of the skin. This study presents a novel microscopic computational model of the skin to understand the effects on the internal electric field and temperature elevation around the electrode. Also, multiscale simulations of the head were compared with measurements in human participants to validate the proposed model. As a result, the electric field in the skin was less localized when the follicles/ducts were filled with saline instead of hair or tap water, and the temperature elevation was smaller for saline.
This work was presented in the paper "Effect of microscopic modeling of skin in electrical and thermal analysis of transcranial direct current stimulation" that was published in Physics in Medicine and Biology.
If you don't access to the journal publication, the approved manuscript of the journal can be downloaded here: Link to Approved Version
Note:
The employed model resolution was 50 um. We also tested it for 25 um but the results of electric field and impedance were not affected and computation time increased from 4h to 2~3 days (as the number of voxels increased from 9 million to 72 million). Although this was discussed in detail in the paper, the following unpublished is presented here for the record.
