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Updated: Jun 13, 2025

Transport Properties of Ibuprofen Encapsulated in Cyclodextrin Nanosponge Hydrogels: A Proton HR-MAS NMR Spectroscopy Study
Published on: August 15, 2016
Enhancing ketoprofen's solubility and anti-inflammatory efficacy with safe methyl-β-cyclodextrin complexation
Rajaram Rajamohan1, Eswaran Kamaraj2, Perumal Muthuraja2
1School of Chemical Engineering, Yeungnam University, Gyeongsan, 38541, Republic of Korea. rajmohanau@yu.ac.kr.
This study created inclusion complexes (ICs) of ketoprofen (KTP) with methyl-beta-cyclodextrin (MCD) to improve drug solubility and anti-inflammatory (AI) effects. The resulting ICs showed enhanced AI and anti-arthritic (AA) activity compared to KTP alone.
Area of Science:
- Pharmaceutical Science
- Drug Delivery Systems
- Materials Science
Background:
- Poor water solubility and low anti-inflammatory (AI) efficacy limit the therapeutic potential of many non-steroidal anti-inflammatory drugs (NSAIDs).
- Ketoprofen (KTP), a potent NSAID for pain and arthritis, suffers from poor water solubility, hindering its clinical application.
- Methyl-beta-cyclodextrin (MCD) is explored as a complexing agent to enhance drug properties.
Purpose of the Study:
- To develop and characterize inclusion complexes (ICs) of ketoprofen (KTP) with methyl-beta-cyclodextrin (MCD).
- To improve the solubility and enhance the anti-inflammatory (AI) and anti-arthritic (AA) activities of ketoprofen.
- To confirm the formation and stoichiometry of the KTP-MCD inclusion complex.
Main Methods:
- Formation of KTP-MCD inclusion complexes (ICs).
- Spectroscopic analysis (absorbance, fluorescence) to confirm complexation and determine stoichiometry.
- Phase solubility studies to assess dissolution rates.
- Characterization using FT-IR, NMR, FE-SEM, and TG/DTA techniques.
- In vitro evaluation of anti-inflammatory (AI) and anti-arthritic (AA) activities.
Main Results:
- Complexation of KTP with MCD was confirmed, indicating a 1:1 stoichiometric ratio.
- Phase solubility studies showed improved dissolution rates for the KTP-MCD ICs.
- Spectroscopic and morphological analyses revealed significant changes in KTP upon complexation.
- The KTP-MCD IC demonstrated superior anti-inflammatory (AI) and anti-arthritic (AA) activity compared to free KTP.
Conclusions:
- Methyl-beta-cyclodextrin effectively forms inclusion complexes with ketoprofen, significantly enhancing its solubility and dissolution rate.
- The developed KTP-MCD inclusion complexes exhibit markedly improved anti-inflammatory and anti-arthritic properties.
- This approach holds promise for improving the pharmaceutical applications of poorly soluble NSAIDs, enhancing their stability and therapeutic efficacy.
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