Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1695140 | Applied Clay Science | 2013 | 7 Pages |
Layered double hydroxides (LDH) with intercalated diclofenac, chloramphenicol and ketoprofen have been supported and dispersed in semicrystalline polylactic acid (PLA). The solids have been characterized by powder X-ray diffraction (PXRD), thermogravimetric analysis (TGA) and Fourier-Transform infrared spectroscopy (FT-IR). Drug release from the systems prepared was followed by UV–vis spectroscopy. Release is almost complete after 24 h for ketoprofen from the drug-LDH systems, but lower values were measured for the other drugs (60 and 80%, respectively, for diclofenac and chloramphenicol); however, when supported on PLA the release was much slower and could be related to the degradation of the polymer.
Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slideHighlights► Drug release from layered double hydroxides (LDHs) is studied. ► Release from LDH-drug nanocomposites with polylactic acid is studied. ► Almost total release from the LDHs is reached after 24 h. ► Release from the nanocomposites is not complete even after 3 months.