Preparation and Characterization of Muscone Oil-Based Cyclodextrin Metal–Organic Frameworks: Molecular Dynamics Simulations and Stability Evaluation

<b>Objective:</b> Muscone (MUS), a primary active component of musk, is known for its significant pharmacological properties. However, its clinical application is limited due to poor water solubility and moderate stability. This study aims to address these limitations by encapsulating MU...

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Main Authors: Zifan Qiao, Lihua Chen, Mubarak G. Bello, Shiyu Huang
Format: Article
Language:English
Published: MDPI AG 2025-04-01
Series:Pharmaceutics
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Online Access:https://www.mdpi.com/1999-4923/17/4/497
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author Zifan Qiao
Lihua Chen
Mubarak G. Bello
Shiyu Huang
author_facet Zifan Qiao
Lihua Chen
Mubarak G. Bello
Shiyu Huang
author_sort Zifan Qiao
collection DOAJ
description <b>Objective:</b> Muscone (MUS), a primary active component of musk, is known for its significant pharmacological properties. However, its clinical application is limited due to poor water solubility and moderate stability. This study aims to address these limitations by encapsulating MUS within biodegradable γ-cyclodextrin metal–organic frameworks (γ-CD-MOFs) using a solvent-free method to enable oral MUS delivery by improving solubility and stability, pending in vivo validation. <b>Methods:</b> MUS was encapsulated into γ-CD-MOFs using a solvent-free method, achieving an optimal loading rate of 10.6 ± 0.7%. Comprehensive characterization was performed using scanning electron microscopy (SEM), X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), and thermogravimetric analysis (TGA). Biocompatibility was assessed using RAW264.7 cells, and molecular dynamics simulations were conducted to study the interactions between MUS and γ-CD-MOFs. <b>Results:</b> Characterization techniques confirmed the successful encapsulation of MUS into γ-CD-MOFs. Biocompatibility studies revealed no cytotoxicity, indicating that the system is safe for drug delivery. Molecular dynamics simulations showed that MUS preferentially occupies the large spherical cages of γ-CD-MOFs, driven by non-covalent interactions. Solubility tests and in vitro release studies demonstrated that the solubility of MUS was improved after encapsulation within γ-CD-MOFs. Stability assessments indicated that γ-CD-MOFs significantly enhanced the thermal and photostability of MUS, with high residual amounts remaining under various storage conditions. <b>Conclusions:</b> This study demonstrates the potential of γ-CD-MOFs to solidify MUS, enhance its solubility, and improve its storage stability, providing a foundation for its future use in pharmaceutical applications.
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spelling doaj-art-e9beb90f50274d2f8db4d59722c4c9282025-08-20T02:28:20ZengMDPI AGPharmaceutics1999-49232025-04-0117449710.3390/pharmaceutics17040497Preparation and Characterization of Muscone Oil-Based Cyclodextrin Metal–Organic Frameworks: Molecular Dynamics Simulations and Stability EvaluationZifan Qiao0Lihua Chen1Mubarak G. Bello2Shiyu Huang3Key Laboratory of Modern Preparation of TCM, Ministry of Education, Jiangxi University of Chinese Medicine, No. 1688, Meiling Road, Nanchang 330004, ChinaKey Laboratory of Modern Preparation of TCM, Ministry of Education, Jiangxi University of Chinese Medicine, No. 1688, Meiling Road, Nanchang 330004, ChinaKey Laboratory of Modern Preparation of TCM, Ministry of Education, Jiangxi University of Chinese Medicine, No. 1688, Meiling Road, Nanchang 330004, ChinaSchool of Pharmacy, Jiangxi Science and Technology Normal University, Nanchang 330013, China<b>Objective:</b> Muscone (MUS), a primary active component of musk, is known for its significant pharmacological properties. However, its clinical application is limited due to poor water solubility and moderate stability. This study aims to address these limitations by encapsulating MUS within biodegradable γ-cyclodextrin metal–organic frameworks (γ-CD-MOFs) using a solvent-free method to enable oral MUS delivery by improving solubility and stability, pending in vivo validation. <b>Methods:</b> MUS was encapsulated into γ-CD-MOFs using a solvent-free method, achieving an optimal loading rate of 10.6 ± 0.7%. Comprehensive characterization was performed using scanning electron microscopy (SEM), X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), and thermogravimetric analysis (TGA). Biocompatibility was assessed using RAW264.7 cells, and molecular dynamics simulations were conducted to study the interactions between MUS and γ-CD-MOFs. <b>Results:</b> Characterization techniques confirmed the successful encapsulation of MUS into γ-CD-MOFs. Biocompatibility studies revealed no cytotoxicity, indicating that the system is safe for drug delivery. Molecular dynamics simulations showed that MUS preferentially occupies the large spherical cages of γ-CD-MOFs, driven by non-covalent interactions. Solubility tests and in vitro release studies demonstrated that the solubility of MUS was improved after encapsulation within γ-CD-MOFs. Stability assessments indicated that γ-CD-MOFs significantly enhanced the thermal and photostability of MUS, with high residual amounts remaining under various storage conditions. <b>Conclusions:</b> This study demonstrates the potential of γ-CD-MOFs to solidify MUS, enhance its solubility, and improve its storage stability, providing a foundation for its future use in pharmaceutical applications.https://www.mdpi.com/1999-4923/17/4/497musconeγ-cyclodextrinmetal–organic frameworkmolecular modelingstability
spellingShingle Zifan Qiao
Lihua Chen
Mubarak G. Bello
Shiyu Huang
Preparation and Characterization of Muscone Oil-Based Cyclodextrin Metal–Organic Frameworks: Molecular Dynamics Simulations and Stability Evaluation
Pharmaceutics
muscone
γ-cyclodextrin
metal–organic framework
molecular modeling
stability
title Preparation and Characterization of Muscone Oil-Based Cyclodextrin Metal–Organic Frameworks: Molecular Dynamics Simulations and Stability Evaluation
title_full Preparation and Characterization of Muscone Oil-Based Cyclodextrin Metal–Organic Frameworks: Molecular Dynamics Simulations and Stability Evaluation
title_fullStr Preparation and Characterization of Muscone Oil-Based Cyclodextrin Metal–Organic Frameworks: Molecular Dynamics Simulations and Stability Evaluation
title_full_unstemmed Preparation and Characterization of Muscone Oil-Based Cyclodextrin Metal–Organic Frameworks: Molecular Dynamics Simulations and Stability Evaluation
title_short Preparation and Characterization of Muscone Oil-Based Cyclodextrin Metal–Organic Frameworks: Molecular Dynamics Simulations and Stability Evaluation
title_sort preparation and characterization of muscone oil based cyclodextrin metal organic frameworks molecular dynamics simulations and stability evaluation
topic muscone
γ-cyclodextrin
metal–organic framework
molecular modeling
stability
url https://www.mdpi.com/1999-4923/17/4/497
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AT mubarakgbello preparationandcharacterizationofmusconeoilbasedcyclodextrinmetalorganicframeworksmoleculardynamicssimulationsandstabilityevaluation
AT shiyuhuang preparationandcharacterizationofmusconeoilbasedcyclodextrinmetalorganicframeworksmoleculardynamicssimulationsandstabilityevaluation