In summary, varying the wavelength and power of the laser provided some useful insights. In general, for the wavelengths evaluated, laser powers exceeding 4 mW resulted in uncontrolled modifications with highly variable morphologies. Several laser settings did, however, offer excellent control in polymer modification. Specifically, the use of the 532 nm laser operating at 1.3 or 1.8 mW enabled controlled modifications of Materials 1-4. In particular, these laser settings provided the most control for making channels by ablation on Material 1. The 638 nm laser operating at 2.4 mW was also useful for inducing persistent and controlled swelling of Material 3. With these capabilities and control parameters established, applications of these modifications were explored next.