[In vitro evaluation of the gels properties prepared thermosensitive polymers as vehicles for administration substance by injection]

Polim Med. 2011;41(4):3-15.
[Article in Polish]

Abstract

The aim of this study was to prepare a thermoresponsive formulations, which are a carrier for substance administered directly into site of action and which obtain sol-gel transitions at physiological ranges of temperature. The investigated formulations of liquid consistency at room temperature were obtained in sterile conditions on the basis of nonionic polymers Pluronic F-127, Pluronic F-68 and anionic polymer hyaluronic acid in different concentrations. The sol-gel transition temperature of the formulations was investigated and their physicochemical properties such as pH, density, osmotic pressure, sol-gel transition temperature, texture and release of vancomycin hydrochloride were studied. In vitro release experiments indicated that the optimised platform was able to prolong vancomycin hydrochloride release and their physico-chemical properties allow for application by injection form.

Publication types

  • English Abstract

MeSH terms

  • Chemistry, Pharmaceutical
  • Excipients / chemistry
  • Gels / chemistry*
  • Hydrogen-Ion Concentration
  • Injections
  • Osmolar Concentration
  • Pharmaceutical Vehicles / chemistry*
  • Poloxamer / chemistry
  • Polymers / chemistry*
  • Temperature
  • Vancomycin / chemistry*

Substances

  • Excipients
  • Gels
  • Pharmaceutical Vehicles
  • Polymers
  • Poloxamer
  • Vancomycin