Preparation of Tween 80-Zn/Al-levodopa-layered double hydroxides nanocomposite for drug delivery system

ScientificWorldJournal. 2014 Mar 23:2014:104246. doi: 10.1155/2014/104246. eCollection 2014.

Abstract

We incorporated anti-Parkinsonian drug, levodopa (dopa), in Zn/Al-LDH by coprecipitation method to form dopa-LDH nanocomposite. Further coating of Tween-80 on the external surfaces of dopa-LDH nanocomposite was achieved through the oxygen of C=O group of Tween-80 with the layer of dopa-LDH nanocomposite. The final product is called Tween-dopa-LDH nanocomposite. The X-ray diffraction indicates that the Tween-dopa-LDH nanocomposite was formed by aggregation structure. From the TGA data, the Tween-80 loading on the surface of LDH and dopa-LDH was 8.6 and 7.4%, respectively. The effect of coating process on the dopa release from Tween-dopa-LDH nanocomposite was also studied. The release from Tween-dopa-LDH nanocomposite shows slower release compared to the release of the drug from dopa-LDH nanocomposite as done previously in our study, presumably due to the retarding shielding effect. The cell viability study using PC12 showed improved viability with Tween-80 coating on dopa-LDH nanocomposite as studied by mitochondrial dehydrogenase activity (MTT assay).

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Aluminum / chemistry*
  • Animals
  • Cell Survival / drug effects
  • Drug Carriers
  • Drug Delivery Systems*
  • Hydroxides / chemistry*
  • Kinetics
  • Levodopa / administration & dosage*
  • Nanocomposites / chemistry*
  • Nanocomposites / ultrastructure
  • PC12 Cells
  • Polysorbates / chemistry*
  • Rats
  • Spectroscopy, Fourier Transform Infrared
  • Thermodynamics
  • X-Ray Diffraction
  • Zinc / chemistry*

Substances

  • Drug Carriers
  • Hydroxides
  • Polysorbates
  • Levodopa
  • Aluminum
  • Zinc