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In recent years, deep eutectic systems (DES) emerged as novel vehicles for facilitating the transdermal delivery of various drugs, including polysaccharides, proteins, insulin, vaccine, nanoparticles, and herb extracts. The objective of this study is to conduct a comprehensive review of the application of DES to transdermal drug delivery, based on previous work and the reported references. Following a brief overview, the roles of DES in TDDS, the modes of action, as well as the structure-activity relationship of DES are discussed. Particularly, the skin permeation of active macromolecules and rigid nanoparticles, which are the defining characteristics of DES, are extensively discussed. The objective is to provide a comprehensive understanding of the current investigation and development of DES-based transdermal delivery systems, as well as a framework for the construction of novel DES-TDDS in the future.
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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9692497 | PMC |
http://dx.doi.org/10.3390/pharmaceutics14112265 | DOI Listing |
Adv Pharm Bull
July 2025
Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal- 576104, India.
Purpose: The present study aimed to fabricate microneedles (MNs) for transdermal delivery of insulin. Chitosan-conjugated carboxy phenyl boronic acid polymer was synthesized and characterized to load insulin in the form of nanoparticles.
Methods: Optimized insulin nanoparticles (ILN-NPs) were loaded into MN arrays by micromolding, and the resulting MN patches were characterized by scanning electron microscopy (SEM) and mechanical failure tests.
Mater Today Bio
October 2025
Wenzhou Hospital of Integrated Traditional Chinese and Western Medicine Affiliated to Zhejiang Chinese Medical University, 75 Jinxiu Road, Wenzhou, 325000, China.
Transdermal drug delivery systems (TDDS) represent a non-invasive approach to achieve controlled drug release through the skin barrier, offering stable plasma concentrations while avoiding gastrointestinal and hepatic metabolism. However, the skin barrier poses physical challenges, making it difficult for most drugs to penetrate deep tissues using TDDS. This review systematically summarizes the research progress in nanocarrier design, physical technology application, and artificial intelligence (AI)-driven TDDS optimization design aimed at overcoming the key problem of skin barrier penetration.
View Article and Find Full Text PDFInt J Biol Macromol
September 2025
Department of Dermatology, The First Affiliated Hospital of Kunming Medical University, Kunming, 650032, China. Electronic address:
Skin aging serves as a critical indicator of systemic health decline. Despite Peroxisome Proliferator-Activated Receptor Gamma (PPARγ) being a key therapeutic target, mechanistic understanding remains incomplete and potent, safe activators are lacking, hindering clinical progress. This study proposes the "Barrier-Skin-Systemic Aging Axis," demonstrating that epidermal barrier disruption accelerates aging via PPARγ suppression.
View Article and Find Full Text PDFInt J Pharm
September 2025
Department of Dermatology, The First Affiliated Hospital of Nanjing Medical University, Guangzhou Road 300, Nanjing, People's Republic of China; Engineering Research Center of Intelligent Theranostics Technology and Instruments, Ministry of Education, People's Republic of China. Electronic address:
Background: Ultrasound-assisted transdermal drug delivery, or sonophoresis, enhances skin permeability, offering a non-invasive alternative for drug administration. However, its clinical application remains limited because of an insufficient understanding of its underlying mechanisms and optimal parameters. This study investigates the factors influencing ultrasound-enhanced drug absorption and examines its biological effects on skin structures and HaCaT cells, providing a comprehensive analysis of its mechanisms.
View Article and Find Full Text PDFSleep Med Clin
September 2025
Parkinson Foundation Centre of Excellence, King's College Hospital and King's College, London, United Kingdom; King's College Hospital, London, Dubai, UAE; Institute of Psychiatry, Psychology and Neuroscience, King's College, Dementech Clinical Neuroscience Centre London, United Kingdom. Electronic
Sleep dysfunction can affect almost 90% of Parkinson's disease (PD) patients and insomnia related to fragmented sleep is common. Satisfactory management remains an unmet need although dopaminergic non-oral treatments utilising a continuous drug delivery strategy appears to help sleep maintenance insomnia. Transdermal therapy with rotigotine or subcutaneous apomorphine infusion is effective while recent data show considerable efficacy of intrajejunal or subcutaneous levodopa infusion on alleviation of insomnia in PD.
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