In situ formation of steroidal supramolecular gels designed for drug release

Molecules. 2013 Mar 25;18(4):3745-59. doi: 10.3390/molecules18043745.

Abstract

In this work, a steroidal gelator containing an imine bond was synthesized, and its gelation behavior as well as a sensitivity of its gels towards acids was investigated. It was shown that the gels were acid-responsive, and that the gelator molecules could be prepared either by a conventional synthesis or directly in situ during the gel forming process. The gels prepared by both methods were studied and it was found that they had very similar macro- and microscopic properties. Furthermore, the possibility to use the gels as carriers for aromatic drugs such as 5-chloro-8-hydroxyquinoline, pyrazinecarboxamide, and antipyrine was investigated and the prepared two-component gels were studied with regard to their potential applications in drug delivery, particularly in a pH-controlled drug release.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Chloroquinolinols / chemistry
  • Delayed-Action Preparations
  • Drug Delivery Systems / methods*
  • Gels / chemistry*
  • Hydrogen-Ion Concentration
  • Magnetic Resonance Spectroscopy

Substances

  • Chloroquinolinols
  • Delayed-Action Preparations
  • Gels
  • 5-chloro-8-hydroxyquinoline