Recent Advances in Targeted Drug Delivery Systems

A special issue of Biomedicines (ISSN 2227-9059). This special issue belongs to the section "Drug Discovery, Development and Delivery".

Deadline for manuscript submissions: 31 January 2026 | Viewed by 1082

Special Issue Editor


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Guest Editor
Division of Nuclear Medicine and Molecular Imaging, Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Harvard University, Boston, MA, USA
Interests: drug delivery; lipid nanocarriers; polymeric nanocarriers; targeted delivery systems; 3D printing; cancer/molecular imaging
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Special Issue Information

Dear Colleagues,

Despite significant advancements in drug delivery systems, clinical applications continue to face challenges that require innovative solutions to enhance therapeutic efficacy. Targeted drug delivery systems have emerged as a promising approach to address issues such as poor solubility, rapid clearance, low stability, and severe side effects, all of which limit the therapeutic potential of many active compounds and clinical medications. To maximize clinical applications and patient compliance, advanced pharmaceutical technologies such as encapsulation, solid dispersions, nanotechnology, and targeted delivery systems have proven successful in improving medication stability, lowering toxicity, and increasing efficacy.

Lipid/polymeric membrane-based systems—such as liposomes, nanoparticles, polymeric vesicles, dendrimers, and micelles—have shown significant promise in addressing unmet therapeutic needs by encapsulating medications, enhancing stability, and enabling controlled release. Additionally, exosomes, which are endogenous nanosized vesicles, offer great potential for targeted drug delivery due to their exceptional biocompatibility, ability to cross biological barriers, innate targeting properties, and tumor-homing capabilities. These systems hold implications for regenerative medicine, neurological disorders, cardiovascular diseases, infectious illnesses, and cancer treatment, presenting opportunities to improve targeted therapies and amplify their therapeutic efficacy.

Another important development in the field is theranostic drug delivery systems, which combine diagnosis and treatment. Recent progress in targeted drug delivery systems highlights a growing focus on novel formulation technologies, nanotechnology, and theranostic approaches. By enhancing therapeutic efficacy, safety, and patient compliance, these advancements hope to open the door to more individualized and efficient treatment alternatives for a range of medical applications.

Dr. Santosh Bashyal
Guest Editor

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Keywords

  • targeted drug delivery systems
  • nanocarriers (lipid or polymeric)
  • stimuli-responsive carriers
  • exosomes or exosome-mimetic vesicles
  • disease targeting
  • tumor targeting
  • theranostics

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Published Papers (1 paper)

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Research

14 pages, 1689 KB  
Article
Crossing Barriers: PEGylated Gold Nanoparticles as Promising Delivery Vehicles for siRNA Delivery in Alzheimer’s Disease
by Elżbieta Okła, Marcin Hołota, Sylwia Michlewska, Serafin Zawadzki, Katarzyna Miłowska, Javier Sánchez-Nieves, Rafael Gómez, Francisco Javier De la Mata, Maria Bryszewska and Maksim Ionov
Biomedicines 2025, 13(9), 2108; https://doi.org/10.3390/biomedicines13092108 - 29 Aug 2025
Viewed by 543
Abstract
Background: The proportion of people suffering from neurodegenerative conditions, such as Alzheimer’s disease (AD), is increasing in the population year on year. Despite the constant effort of researchers, these conditions remain incurable and can only be managed by alleviation or delaying of [...] Read more.
Background: The proportion of people suffering from neurodegenerative conditions, such as Alzheimer’s disease (AD), is increasing in the population year on year. Despite the constant effort of researchers, these conditions remain incurable and can only be managed by alleviation or delaying of symptoms. The lack of suitable treatment is caused by constricted access to the brain, limited by the brain-blood barrier. The aim of this work was to investigate two pegylated gold nanoparticles as potential carriers of therapeutic siRNA and their impact on the cellular functions of Human Brain Endothelial Cells. Methods and Results: Nanoparticles AuNP14a and AuNP14b complexed with siRNA were internalized by HBEC-5i cells and located in the cytoplasm. The genotoxicity assay proved that the nucleus was not affected and complexed nanoparticles did not cause DNA damage. The reactive oxygen species formation and mitochondrial membrane potential changes were measured and showed an adaptive response of cells after compound administration. Results obtained in a cytotoxicity assay conducted on astrocytes and pericytes, which are components of the blood–brain barrier, confirmed the biosafety of tested nanoparticles. Conclusions: In summary, it was shown that AuNP14a and AuNP14b are promising candidates as nanocarriers for therapeutic nucleic acids through biological barriers. Full article
(This article belongs to the Special Issue Recent Advances in Targeted Drug Delivery Systems)
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