Santo V. E., Duarte A. R. C., Gomes M. E., Mano J. F., and Reis R. L.,  "Hybrid 3D structure of poly (D,L lactic acid) loaded with chitosan-chondroitin sulfate nanoparticles with potential applications as biomacromolecule carrier",  Workshop on Supercritical Fluid Processing of Biopolymers and Biomedical Materials, 2009.