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Abstract
Background: This study aimed to evaluate the effects of hydrophobic and hydrophilic Film-Forming Gels (FFGs) on the controlled delivery of drugs with different levels of hydrophobicity.
Methods: This evaluation was carried out by employing zein and polyvinylpyrrolidone as hydrophobic and hydrophilic film-forming agents, respectively, in combination with hydroxypropyl methylcellulose functionalized as a hydrogel basement at a ratio that had been optimized to achieve the fastest drying time. Free curcumin or terbinafine hydrochloride was subsequently dispersed into blank FFGs to produce the final FFG formulations.
Results: Although the extreme hydrophobicity of curcumin strongly limited its topical permeability compared to that of terbinafine hydrochloride, zein FFGs clearly resulted in a favourable sustained release system for highly hydrophobic drugs, such as curcumin. Moreover, polyvinylpyrrolidone would be highly effective for the sustained release of a less hydrophobic drug, such as terbinafine hydrochloride. Analyses of the wettability, surface morphology, chemical interactions and crystallinity of FFGs also helped to elucidate the mechanisms of their drug release profiles.
Conclusion: This fundamental finding is beneficial for further design studies on FFGs as sustained drug delivery systems for topical drugs with a wide range of hydrophobicities.
Keywords: Hydrophobic film-forming gels, hydrophilic film-forming gels, hydrophobic drug, sustained release, hydrophobicity, drug delivery.
Anti-Cancer Agents in Medicinal Chemistry
Title:Hydrophobic and Hydrophilic Film-Forming Gels for the Controlled Delivery of Drugs with Different Levels of Hydrophobicity
Volume: 21 Issue: 15
Author(s): Khanh T. Nguyen, Phuong H.L. Tran, Hai V. Ngo and Thao T.D. Tran*
Affiliation:
- Department for Management of Science and Technology Development, Ton Duc Thang University, Ho Chi Minh City,Vietnam
Keywords: Hydrophobic film-forming gels, hydrophilic film-forming gels, hydrophobic drug, sustained release, hydrophobicity, drug delivery.
Abstract:
Background: This study aimed to evaluate the effects of hydrophobic and hydrophilic Film-Forming Gels (FFGs) on the controlled delivery of drugs with different levels of hydrophobicity.
Methods: This evaluation was carried out by employing zein and polyvinylpyrrolidone as hydrophobic and hydrophilic film-forming agents, respectively, in combination with hydroxypropyl methylcellulose functionalized as a hydrogel basement at a ratio that had been optimized to achieve the fastest drying time. Free curcumin or terbinafine hydrochloride was subsequently dispersed into blank FFGs to produce the final FFG formulations.
Results: Although the extreme hydrophobicity of curcumin strongly limited its topical permeability compared to that of terbinafine hydrochloride, zein FFGs clearly resulted in a favourable sustained release system for highly hydrophobic drugs, such as curcumin. Moreover, polyvinylpyrrolidone would be highly effective for the sustained release of a less hydrophobic drug, such as terbinafine hydrochloride. Analyses of the wettability, surface morphology, chemical interactions and crystallinity of FFGs also helped to elucidate the mechanisms of their drug release profiles.
Conclusion: This fundamental finding is beneficial for further design studies on FFGs as sustained drug delivery systems for topical drugs with a wide range of hydrophobicities.
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Cite this article as:
Nguyen T. Khanh , Tran H.L. Phuong , Ngo V. Hai and Tran T.D. Thao *, Hydrophobic and Hydrophilic Film-Forming Gels for the Controlled Delivery of Drugs with Different Levels of Hydrophobicity, Anti-Cancer Agents in Medicinal Chemistry 2021; 21 (15) . https://dx.doi.org/10.2174/1871520621666201231141842
DOI https://dx.doi.org/10.2174/1871520621666201231141842 |
Print ISSN 1871-5206 |
Publisher Name Bentham Science Publisher |
Online ISSN 1875-5992 |
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