Here's a study from 2023 where they apply external electricity to improve healing rate of wounds: https://pubs.rsc.org/en/content/articlelanding/2023/LC/D2LC01

Here's a study from 2023 where they apply external electricity to improve healing rate of wounds: https://pubs.rsc.org/en/content/articlelanding/2023/LC/D2LC01045C https://pubs.rsc.org/en/content/articlelanding/2023/LC/D2LC0... It enabled healing of diabetic wounds that are otherwise hard to heal.