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Related Experiment Video

Updated: Jul 7, 2026

Transport Properties of Ibuprofen Encapsulated in Cyclodextrin Nanosponge Hydrogels: A Proton HR-MAS NMR Spectroscopy Study

Transport Properties of Ibuprofen Encapsulated in Cyclodextrin Nanosponge Hydrogels: A Proton HR-MAS NMR Spectroscopy Study

Published on: August 15, 2016

Drug loading into beta-cyclodextrin granules using a supercritical fluid process for improved drug dissolution.

Khaled Hussein¹, Michael Türk, Martin A Wahl

¹Pharmazeutische Technologie, Eberhard-Karls-Universität Tübingen, Auf der Morgenstelle 8, D-72076 Tübingen, Germany.

European Journal of Pharmaceutical Sciences : Official Journal of the European Federation for Pharmaceutical Sciences

|February 20, 2008

Summary

Supercritical fluid technology effectively loaded ibuprofen into beta-cyclodextrin granules, significantly enhancing drug dissolution. This controlled particle deposition method offers a solvent-free approach for improving drug solubility.

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Supercritical Nitrogen Processing for the Purification of Reactive Porous Materials

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Transport Properties of Ibuprofen Encapsulated in Cyclodextrin Nanosponge Hydrogels: A Proton HR-MAS NMR Spectroscopy Study

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Published on: August 15, 2016

Supercritical Nitrogen Processing for the Purification of Reactive Porous Materials

Supercritical Nitrogen Processing for the Purification of Reactive Porous Materials

Published on: May 15, 2015

Area of Science:

Pharmaceutical Technology
Materials Science
Chemical Engineering

Background:

Poor water-solubility of drugs limits their bioavailability and therapeutic efficacy.
Supercritical fluid (SCF) technology offers a green and efficient method for drug formulation.
Beta-cyclodextrin (betaCD) is a suitable carrier for enhancing the solubility of poorly water-soluble drugs.

Purpose of the Study:

To evaluate the efficacy of controlled particle deposition (CPD), an SCF technique, for loading ibuprofen into betaCD granules.
To compare the CPD technique with a conventional solution immersion (SI) method for drug loading.
To assess the impact of drug loading on the physical properties and dissolution of ibuprofen.

Main Methods:

Ibuprofen was loaded into betaCD granules using two methods: CPD (SCF process) and SI (conventional method).
Drug loading efficiency was quantified by weight percentage.
Physical characterization included BET surface area analysis and X-ray diffraction.
Drug dissolution rates were measured and compared to unprocessed ibuprofen.

Main Results:

CPD resulted in significantly higher ibuprofen loading (17.42 wt.%) compared to SI (3.8 wt.%).
BET surface area reduction confirmed drug loading in the CPD product, unlike the SI product.
X-ray patterns indicated crystalline ibuprofen in loaded granules.
Both methods improved drug dissolution compared to unprocessed ibuprofen, with CPD showing greater potential.

Conclusions:

Controlled particle deposition using supercritical fluids is a highly effective technique for loading poorly water-soluble drugs into solid carriers like betaCD.
This SCF-based method significantly enhances drug loading capacity and improves drug dissolution properties.
CPD offers a promising, solvent-free alternative to conventional methods for pharmaceutical formulation.