“…13 The structural formula of LDHs is (M 2+ 1Àx M 3+ x -(OH) 2 ) x + [A nÀ ] x/n $mH 2 O, where M 2+ is a divalent cation, M 3+ is a trivalent cation, and A nÀ is an intercalated anion. 14,15 LDHs can intercalate biologically-active molecules through anion exchange, 16,17 a property which has opened their applications in medicine and pharmacy 18 as drug carriers for many antibiotics, 16,19 anti-inammatory agents, 20 targeted drug delivery vehicles, [21][22][23] and for wound healing. 24 Recently, nanoparticles, beads, bandages, biolms, and nanobers have been considered intrinsic materials to attain sustained release.…”