So many questions. But to start...<p>What are these powered by?<p>Does the PLGA dissolving also break down the silicone?<p>Edit: Ah. This article (from 2014) seems to have a little more detail: <a href="https:&#x2F;&#x2F;medicine.wustl.edu&#x2F;news&#x2F;soluble-electronics-reliably-monitor-intracranial-pressure&#x2F;" rel="nofollow">https:&#x2F;&#x2F;medicine.wustl.edu&#x2F;news&#x2F;soluble-electronics-reliably...</a><p>Edit 2: This article makes it seem like they might mean silicon rather than the (presumably not degradable) silicone.