Mössbauer, XRD and TEM Study on the Intercalation and the Release of Drugs in/from Layered Double Hydroxides oleh E. Kuzmann, V. K. Garg, A. C. de Oliveira, L. Herojit Singh, S. S. Pati, E. M. Guimaraes, Tatiane O. dos Santos, M. Ádok-Sipiczki, P. Sipos, I. Pálinkó