The dissolving sponge thing reminds me of a video I watched years ago. They took a fully functioning organ (from a donor) and dissolved the material so that the

The dissolving sponge thing reminds me of a video I watched years ago. They took a fully functioning organ (from a donor) and dissolved the material so that the only part left was the collagen scaffolding. Effectively, it looked like a transparent organ. They then flowed the recipient's blood into the organ and the tissue regrew around the scaffolding, yielding a fully operable organ with zero chance of foreign tissue rejection once implanted. Anyone recognize this and might have a link?