Preparation, characterization and biodistribution of nanostructured lipid carriers for parenteral delivery of bifendate

J Microencapsul. 2011;28(4):280-5. doi: 10.3109/02652048.2011.559285.

Abstract

Nanostructured lipid carrier (NLC)-loaded bifendate (DDB) was prepared by melt-emulsification method to improve drug payloads and liver targeting. The particle size of the prepared formulation analysed by photon correlation spectroscopy (PCS) was 217.4 nm with a narrow polydispersity index (PI) lower than 0.2, meanwhile the loading capacity increased from 4.3% to 15.7% in comparison with DDB-loaded SLN reported in previous study. The zeta potential value was -21.91 mV, and transmission electron microscopy studies revealed NLC of irregularly spherical shape. With respect to lipid polymorphism, a less ordered structure of NLC was confirmed by differential scanning calorimetry (DSC) and X-ray diffraction (XRD). In addition, tissue distribution of DDB-loaded NLC and DDB solution were carried out in Kunming strain mice. In tested organs, the distribution of DDB-loaded NLC to liver was higher than that of free drug. These results support the potential applications of NLC for the delivery of DDB.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Biphenyl Compounds* / chemistry
  • Biphenyl Compounds* / pharmacokinetics
  • Biphenyl Compounds* / pharmacology
  • Drug Delivery Systems / methods*
  • Lipids* / chemistry
  • Lipids* / pharmacokinetics
  • Lipids* / pharmacology
  • Liver*
  • Mice
  • Particle Size

Substances

  • Biphenyl Compounds
  • Lipids
  • bifendate