Weon, B. M.Chang, S.Yeom, J.Hahn, S. K.Je, J. H.Hwu, Y.Margaritondo, G.2010-11-302010-11-302010-11-30200910.1063/1.3213358https://infoscience.epfl.ch/handle/20.500.14299/59862WOS:000269850300038We present a simple and highly versatile protocol for polymer ablation: hard x-ray irradiation makes it possible to rapidly depolymerize hyaluronan hydrogels and fabricate three-dimensional network of microchannels. Photodynamic and photochemical analyses show that x-ray irradiation directly cleaves the polymer backbone and the total dose controls the degradation kinetics. This nonthermal ablation protocol may offer opportunities for processing organic polymers and biological materials.hydrogelsphotochemistrypolymer structurepolymerisationX-ray effectsPoly(Ethylene-Terephthalate) FilmsLaser-RadiationAcid HydrogelsExcimer LaserTissueDegradationPolymersBiologyCIBM-PCtext::journal::journal article::research article