The current limitations in the use of nanocarriers to treat constantly evolving diseases call for the design of novel and smarter drug delivery systems (DDS). Nanogels (NGs) are three-dimensional crosslinked polymers with dimensions on the nanoscale and with a great potential for use in the biomedical field. Particular interest focuses on their application as DDS to minimize severe toxic effects and increase the therapeutic index of drugs. They have recently gained attention, since they can include responsive modalities within their structure, which enable them to excerpt a therapeutic function on demand. Their bigger sizes and controlled architecture and functionality, when compared to non-crosslinked polymers, make them particularly interesting to explore novel modalities to cross biological barriers. The present review summarizes the most significant developments of NGs as smart carriers, with focus on smart modalities to cross biological barriers such as cellular membrane, tumor stroma, mucose, skin, and blood brain barrier. We discuss the properties of each barrier and highlight the importance that the NG design has on their capability to overcome them and deliver the cargo at the site of action.
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http://dx.doi.org/10.1016/j.jconrel.2019.06.005 | DOI Listing |
Adv Sci (Weinh)
January 2025
Bioprocessing Technology Institute (BTI), Agency for Science, Technology and Research (A*STAR), 20 Biopolis Way, Centros #06-01, Singapore, 138668, Republic of Singapore.
Intranasal delivery of mRNA vaccines offers promising opportunities to combat airborne viruses like SARS-CoV-2 by provoking mucosal immunity, which not only defends against respiratory infection but also prevents contagious transmission. However, the development of nasal mRNA vaccines has been hampered by the lack of effective means to overcome the mucus barrier. Herein, ionizable lipid-incorporated liquid lipid nanoparticles (iLLNs) capable of delivering mRNA cargo across airway mucosa are designed.
View Article and Find Full Text PDFJ Chem Inf Model
January 2025
Key Laboratory of Engineering Biology for Low-Carbon Manufacturing, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin 300308, China.
The chloroperoxidase from (CPO) catalyzes the oxidative ring expansion of α-heterofunctionalized furans via the Achmatowicz rearrangement, providing an elegant tool to convert furan rings into complex-prefunctionalized scaffolds. However, the mechanism of this transformation remains unclear. Herein, the CPO-catalyzed reaction of 1-(2-furyl)ethanol () is studied by quantum chemical calculations and molecular dynamics simulations.
View Article and Find Full Text PDFVopr Pitan
January 2025
Research Institute for Medical Problems in the North - Division of Federal Research Center "Krasnoyarsk Scientific Center of the Siberian Branch of the Russian Academy of Sciences", 660022, Krasnoyarsk, Russian Federation.
Rosacea is a chronic skin disease in which a violation of its barrier function can lead to the penetration of various allergens that normally do not penetrate, and as a result, the development of sensitization. The study of the spectrum of sensitization to food allergens in patients with rosacea is especially relevant, since it can contribute to the discovery of new disease triggers and determine a personalized approach to therapy. of the research was to study the features of the spectrum of sensitization to food and pollen (cross-reacting) allergens in patients with rosacea.
View Article and Find Full Text PDFJACS Au
January 2025
Department of Physics, Freie Universität Berlin, Arnimallee 14, Berlin 14195, Germany.
Interactions of polyelectrolytes (PEs) with proteins play a crucial role in numerous biological processes, such as the internalization of virus particles into host cells. Although docking, machine learning methods, and molecular dynamics (MD) simulations are utilized to estimate binding poses and binding free energies of small-molecule drugs to proteins, quantitative prediction of the binding thermodynamics of PE-based drugs presents a significant obstacle in computer-aided drug design. This is due to the sluggish dynamics of PEs caused by their size and strong charge-charge correlations.
View Article and Find Full Text PDFiScience
January 2025
Department of Thoracic Surgery, Shanghai General Hospital Shanghai Jiao Tong University School of Medicine, No. 100 Haining Road, Hongkou District, Shanghai 200080, China.
Lung cancer remains one of the most prevalent and lethal malignancies worldwide, characterized by high mortality rates due to its aggressive nature, metastatic potential, and drug resistance. Despite advancements in conventional therapies, their efficacy is often limited by systemic toxicity, poor tumor specificity, and the emergence of resistance mechanisms. Nanomedicine has emerged as a promising approach to address these challenges, leveraging the unique physicochemical properties of nanomaterials to enhance drug delivery, reduce off-target effects, and enable combination therapies.
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