We measure the total water uptake and water flux in homopolymer tyrosine-derived carbonates (DTE) as well as in copolymers of DTE-PEG. We study total water uptake by 3H-labeled radioactive water, and we observe that PEG substantially increases the absorbed amount compared with the homopolymers. Likewise, flux studies reveal that flux is higher in the PEG-containing carbonates. To assess the high spatial distribution of water in these copolymers we use spatially-resolved electron energy-loss spectroscopy. For the case of DTE-8% PEG we find no statistically significant variations in water content greater than 100 nm length scales.
|Original language||English (US)|
|Number of pages||3|
|Journal||Bioengineering, Proceedings of the Northeast Conference|
|Publication status||Published - Dec 12 2005|
|Event||Proceedings of the 2005 IEEE 31st Annual Northeast Bioengineering Conference - Hoboken, NJ, United States|
Duration: Apr 2 2005 → Apr 3 2005
All Science Journal Classification (ASJC) codes