from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A polymer-based liposome.
When exposed to near-infrared light, the molecules embedded within the polymersome respond with a detectable infrared signal.
Whereas cell membranes are created from a double layer of fatty phospholipid chains, a polymersome is comprised of two layers of synthetic co-polymers.
Like a living cell, the polymersome membrane has a hydrophobic core.
"We have shown that the dispersion of thousands of brightly emissive multi-porphyrin fluorophores within the polymersome membrane can be used to optically image tissue structures deep below the skin – with the potential to go even deeper," said Michael J. Therien, a professor of chemistry at Penn State.
"It should also be possible to use an emissive polymersome vesicle to transport therapeutics directly to a tumor, enabling us to actually see if chemotherapy is really going to its intended target."