The fluorination of dendritic structures has attracted special attention in terms of self-assembly processes and biological applications. The presence of fluorine increases the hydrophobicity of the molecule, resulting in a better interaction with biological membranes and viability. In addition, the development of F magnetic resonance imaging (F-MRI) has greatly increased interest in the design of new fluorinated structures with specific properties. Here, we present the synthesis of new water-soluble fluorinated carbosilane dendrons containing fluorinated chains in different positions on the skeleton, focal point or surface, and their preliminary supramolecular aggregation studies. These new dendritic systems could be considered as potential systems to be employed in drug delivery or gene therapy and monitored by F-MRI.
Download full-text PDF |
Source |
---|---|
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7070408 | PMC |
http://dx.doi.org/10.3390/molecules25040807 | DOI Listing |
ACS Omega
January 2025
Institute of Chemical Process Fundamentals Czech Academy of Sciences, Rozvojová 135, Prague 165 02, Czech Republic.
Efficient and safe carriers of genetic material are crucial for advancing gene therapy. Three new series of cationic dendritic nanocarriers based on a carbosilane scaffold, differentiated by peripheral modifications: saccharide (CS-glyco), amine (CS-N), and phosphonium dendrimers (CS-P) were designed for binding, protecting, and releasing polyanionic compounds like therapeutic siRNA. Besides introducing synthetic methodology, this study brings a unique direct interstructural comparison of 16 dendritic nanovector's characteristics, addressing a gap in typical research that focuses on uniform structural types.
View Article and Find Full Text PDFNanoscale
January 2025
Department of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, 141/143 Pomorska St., 90-236 Lodz, Poland.
Amphiphilic dendrons or Janus dendrimers self-assembling into nanoscale vesicles offer promising avenues for drug delivery. Triazine-carbosilane dendrons have shown great potential for the intracellular delivery of rose bengal, additionally enhancing its phototoxic activity through non-covalent interactions. Thus, understanding the complexation dynamics between dendrons and photosensitizers is crucial for the development of efficient drug carriers.
View Article and Find Full Text PDFParasitol Res
November 2024
University of Alcala, Department of Biomedicine and Biotechnology, 28805, Madrid, Spain.
Acanthamoeba species are responsible for serious human infections, including Acanthamoeba keratitis (AK) and granulomatous amoebic encephalitis (GAE). These pathogens have a simple life cycle consisting of an infective trophozoite stage and a resistant cyst stage, with cysts posing significant treatment challenges due to their resilience against harsh conditions and chemical agents. Current treatments for AK often involve combining diamines, such as propamidine, and biguanides, such as chlorhexidine (CLX), which exhibit limited efficacy and significant toxicity.
View Article and Find Full Text PDFBiomacromolecules
December 2024
The Czech Academy of Sciences, Institute of Chemical Process Fundamentals, 165 02 Prague, Czech Republic.
Here, we present a modular synthesis as well as physicochemical and biological evaluation of a new series of amphiphilic dendrons carrying triphenylphosphonium groups at their periphery. Within the series, the size and mutual balance of lipophilic and hydrophilic domains are systematically varied, changing the dendron shape from cylindrical to conical. In physiological solution, the dendrons exhibit very low critical micelle concentrations (2.
View Article and Find Full Text PDFMacromol Biosci
January 2025
Universidad de Alcalá, Department of Organic and Inorganic Chemistry, Research Institute in Chemistry "Andrés M. del Río" (IQAR), Chamartín, Madrid, 28805, Spain.
Transfection efficiency is a critical parameter in gene therapy and molecular biology, representing the success rate at which nucleic acids are introduced and expressed in target cells. The combination of aptamers with nanotechnology-based delivery systems has demonstrated remarkable improvements in the transfection efficiency of therapeutic agents and holds significant potential for advancing gene therapy and the development of targeted treatments for various diseases, including cancer. In this work, cationic carbosilane dendritic systems are presented as an alternative to commercial transfection agents, demonstrating an increase in transfection efficiency when used for the internalization of apMNKQ2, an aptamer selected against a target in cancer.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!