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Polymeric Materials for Biomedical Applications, Drug and Gene Delivery

A special issue of International Journal of Molecular Sciences (ISSN 1422-0067). This special issue belongs to the section "Macromolecules".

Deadline for manuscript submissions: 20 September 2024 | Viewed by 2711

Special Issue Editor


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Guest Editor
Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory 1–3, Moscow 119991, Russia
Interests: organic and inorganic synthesis; homogeneous catalysis; macromolecules; coordination catalysis and organocatalysis for ring-opening polymerization; single-site catalysis in polymerization and transformations of α-olefins and dienes; synthesis of advanced petrochemical products; biodegradable polymers; actual materials for biomedical applications
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Special Issue Information

Dear Colleagues,

The design of polymeric materials for all kinds of biomedical applications requires solving a big set of synthetic problems to study their biocompatibility and to discuss the ways in which the materials under consideration could be helpful for human beings. This Special Issue focuses on all the abovementioned aspects dealing with the elaboration and functioning of polymeric materials for biomedical applications. Research articles and reviews are welcome. Potential topics include, but are not limited to, the following: design, synthesis, characterization, functionalization and processing of polymers and composites for different biomedical applications; bioresorbable polymeric materials; materials for drug and gene delivery; materials for bone surgery, orthopedics and dentistry; and materials for tissue engineering, medical devices and biosensors.

Prof. Dr. Ilya E. Nifant'ev
Guest Editor

Manuscript Submission Information

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Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. International Journal of Molecular Sciences is an international peer-reviewed open access semimonthly journal published by MDPI.

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Keywords

  • biodegradable polymers
  • polyesters
  • scaffolds
  • tissue engineering
  • drug delivery
  • gene delivery
  • functional materials
  • biomedical application

Published Papers (3 papers)

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Research

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12 pages, 3104 KiB  
Article
Polyelectrolyte Microcapsules: An Extended Release System for the Antiarrhythmic Complex of Allapinin with Glycyrrhizic Acid Salt
by Shavkat I. Salikhov, Egor V. Musin, Aleksandr L. Kim, Yulia I. Oshchepkova and Sergey A. Tikhonenko
Int. J. Mol. Sci. 2024, 25(5), 2652; https://doi.org/10.3390/ijms25052652 - 24 Feb 2024
Viewed by 706
Abstract
Allapinin has antiarrhythmic activity and can be used to prevent and treat various supraventricular and ventricular arrhythmias. Nevertheless, it is highly toxic and has a number of side effects associated with non-specific accumulation in various tissues. The complex of this substance with the [...] Read more.
Allapinin has antiarrhythmic activity and can be used to prevent and treat various supraventricular and ventricular arrhythmias. Nevertheless, it is highly toxic and has a number of side effects associated with non-specific accumulation in various tissues. The complex of this substance with the monoammonium salt of glycyrrhizic acid (Al:MASGA) has less toxicity and improved antiarrhythmic activity. However, the encapsulation of Al:MASGA in polyelectrolyte microcapsules (PMC) for prolonged release will reduce the residual adverse effects of this drug. In this work, the possibility of encapsulating the allapinin–MASGA complex in polyelectrolyte microcapsules based on polyallylamine and polystyrene sulfonate was investigated. The encapsulation methods of the allapinin–MASGA in polyelectrolyte microcapsules by adsorption and coprecipitation were compared. It was found that the coprecipitation method did not result in the encapsulation of Al:MASGA. The sorption method facilitated the encapsulation of up to 80% of the original substance content in solution in PMC. The release of the encapsulated substance was further investigated, and it was shown that the release of the encapsulated Al:MASGA was independent of the substance content in the capsules, but at pH 5, a two-fold decrease in the rate of drug release was observed. Full article
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12 pages, 3054 KiB  
Article
PEGylation of Terminal Ligands as a Route to Decrease the Toxicity of Radiocontrast Re6-Clusters
by Aleksei S. Pronin, Tatiana N. Pozmogova, Yuri A. Vorotnikov, Georgy D. Vavilov, Anton A. Ivanov, Vadim V. Yanshole, Alphiya R. Tsygankova, Tatiana Ya. Gusel’nikova, Yuri V. Mironov and Michael A. Shestopalov
Int. J. Mol. Sci. 2023, 24(23), 16569; https://doi.org/10.3390/ijms242316569 - 21 Nov 2023
Viewed by 737
Abstract
The development of novel radiocontrast agents, mainly used for the visualization of blood vessels, is still an emerging task due to the variety of side effects of conventional X-ray contrast media. Recently, we have shown that octahedral chalcogenide rhenium clusters with phosphine ligands—Na [...] Read more.
The development of novel radiocontrast agents, mainly used for the visualization of blood vessels, is still an emerging task due to the variety of side effects of conventional X-ray contrast media. Recently, we have shown that octahedral chalcogenide rhenium clusters with phosphine ligands—Na2H14[{Re6Q8}(P(C2H4COO)3)6] (Q = S, Se)—can be considered as promising X-ray contrast agents if their relatively high toxicity related to the high charge of the complexes can be overcome. To address this issue, we propose one of the most widely used methods for tuning the properties of proteins and peptides—PEGylation (PEG is polyethylene glycol). The reaction between the clusters and PEG-400 was carried out in acidic aqueous media and resulted in the binding of up to five carboxylate groups with PEG. The study of cytotoxicity against Hep-2 cells and acute toxicity in mice showed a twofold reduction in toxicity after PEGylation, demonstrating the success of the strategy chosen. Finally, the compound obtained has been used for the visualization of blood vessels of laboratory rats by angiography and computed tomography. Full article
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Review

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25 pages, 7153 KiB  
Review
Protein and Polysaccharide-Based Optical Materials for Biomedical Applications
by Gianna Riviello, Brendan Connor, Jake McBrearty, Gianna Rodriguez and Xiao Hu
Int. J. Mol. Sci. 2024, 25(3), 1861; https://doi.org/10.3390/ijms25031861 - 3 Feb 2024
Cited by 1 | Viewed by 1029
Abstract
Recent advances in biomedical research, particularly in optical applications, have sparked a transformative movement towards replacing synthetic polymers with more biocompatible and sustainable alternatives. Most often made from plastics or glass, these materials ignite immune responses from the body, and their production is [...] Read more.
Recent advances in biomedical research, particularly in optical applications, have sparked a transformative movement towards replacing synthetic polymers with more biocompatible and sustainable alternatives. Most often made from plastics or glass, these materials ignite immune responses from the body, and their production is based on environmentally harsh oil-based processes. Biopolymers, including both polysaccharides and proteins, have emerged as a potential candidate for optical biomaterials due to their inherent biocompatibility, biodegradability, and sustainability, derived from their existence in nature and being recognized by the immune system. Current extraction and fabrication methods for these biomaterials, including thermal drawing, extrusion and printing, mold casting, dry-jet wet spinning, hydrogel formations, and nanoparticles, aim to create optical materials in cost-effective and environmentally friendly manners for a wide range of applications. Present and future applications include optical waveguides and sensors, imaging and diagnostics, optical fibers, and waveguides, as well as ocular implants using biopolymers, which will revolutionize these fields, specifically their uses in the healthcare industry. Full article
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