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Updated: Oct 25, 2025

Self-Nanoemulsification of Healthy Oils to Enhance the Solubility of Lipophilic Drugs
Published on: July 27, 2022
New potential application of hydroxypropyl-β-cyclodextrin in solid self-nanoemulsifying drug delivery system and
Jung Suk Kim1, Yoo Jin Choi1, Mi Ran Woo1
1College of Pharmacy, Hanyang University, 55 Hanyangdaehak-ro, Sangnok-gu, Ansan 15588, South Korea.
Hydroxypropyl-β-cyclodextrin (HP-β-CD) enhances dexibuprofen solubility and oral bioavailability when used as a carrier in novel solid self-nanoemulsifying drug delivery systems (SNEDDS). This approach improves drug delivery for poorly water-soluble compounds.
Area of Science:
- Pharmaceutical Sciences
- Drug Delivery Systems
- Materials Science
Background:
- Dexibuprofen is a poorly water-soluble non-steroidal anti-inflammatory drug.
- Enhancing the solubility and oral bioavailability of such drugs is crucial for effective therapy.
- Novel drug delivery systems are needed to overcome solubility limitations.
Purpose of the Study:
- To investigate hydroxypropyl-β-cyclodextrin (HP-β-CD) as a carrier in solid self-nanoemulsifying drug delivery systems (SNEDDS) and solid dispersions.
- To enhance the solubility and oral bioavailability of dexibuprofen.
- To characterize the novel dexibuprofen-loaded solid SNEDDS.
Main Methods:
- Formulation of dexibuprofen-loaded solid SNEDDS using HP-β-CD, corn oil, polysorbate 80, and Cremophor® EL.
- Characterization of the nano-emulsion size and structure of the solid SNEDDS.
- Assessment of drug solubility and in vivo pharmacokinetic parameters (AUC) compared to solid dispersion and drug powder.
Main Results:
- The novel solid SNEDDS spontaneously formed a nano-emulsion with a particle size of approximately 120 nm.
- The dexibuprofen-loaded solid SNEDDS exhibited a spherical structure and transformed the crystalline drug into an amorphous state.
- Compared to solid dispersion and dexibuprofen powder, the solid SNEDDS significantly enhanced drug solubility and AUC.
Conclusions:
- Hydroxypropyl-β-cyclodextrin (HP-β-CD) is a promising novel carrier for SNEDDS.
- Solid SNEDDS formulated with HP-β-CD effectively improve the solubility and oral bioavailability of dexibuprofen.
- This formulation strategy offers a potential solution for delivering poorly water-soluble drugs.
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