Applied Surface Science, Vol.253, No.19, 7702-7706, 2007
Matrix assisted pulsed laser evaporation of poly(D,L-lactide) thin films for controlled-release drug systems
We report the successful deposition of the porous polymer poly(D,L-lactide) by matrix assisted pulsed laser evaporation (MAPLE) using a KrF* excimer laser (248 nm, T = 7 ns) operated at 2 Hz repetition rate. The chemical structure of the starting materials was preserved in the resulting thin films. Fluence played a key role in optimizing our depositions of the polymer. We demonstrated MAPLE was able to improve current approaches to grow high quality thin films Of poly(D,L-lactide), including a porosity control highly required in targeted drug delivery. (c) 2007 Elsevier B.V. All rights reserved.
Keywords:controlled drug release;porous polymers;thin films;matrix assisted pulsed laser evaporation