Preparation of micro-fabricated biodegradable polymeric structures using NCDS

Arch Pharm Res. 2008 Jan;31(1):125-32. doi: 10.1007/s12272-008-1130-9.

Abstract

PLGA scaffolds were prepared using a nano-composite deposition system (NCDS). 5-Fluorouracil (5-FU) was used as a model drug. Hydroxyapatite (HA) was included in the scaffolds to improve the mechanical properties of the scaffolds and modulate the release of 5-FU from the scaffolds. 5-FU and HA were dispersed well in the prepared scaffolds when evaluated with SEM, FT-IR, XRPD and DSC. The release of 5-FU from the prepared scaffolds consisting of different compositions was determined using 40 mL PBS as the medium. The release profiles of 5-FU from PLGA scaffolds followed the typical triphasic release pattern. The addition of HA to the compositions increased the release rate of 5-FU from the scaffolds and improved the mechanical properties of the scaffolds, while it retarded the degradation of PLGA. Therefore, NCDS could be a good system to prepare polymeric implants of various shapes with different drug release patterns.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Calorimetry, Differential Scanning
  • Chemical Phenomena
  • Chemistry, Physical
  • Drug Carriers
  • Drug Delivery Systems*
  • Durapatite / chemistry*
  • Elasticity
  • Fluorouracil / administration & dosage
  • Fluorouracil / chemistry
  • Hardness
  • Lactic Acid / chemistry*
  • Microscopy, Electron, Scanning
  • Nanotechnology*
  • Polyglycolic Acid / chemistry*
  • Polylactic Acid-Polyglycolic Acid Copolymer
  • Polymers / chemistry*
  • Spectroscopy, Fourier Transform Infrared
  • X-Ray Diffraction

Substances

  • Drug Carriers
  • Polymers
  • Polylactic Acid-Polyglycolic Acid Copolymer
  • Polyglycolic Acid
  • Lactic Acid
  • Durapatite
  • Fluorouracil