Abstract |
The aims of this study were the development, characterization and bioevaluation of a novel biocompatible, resorbable and bio-active wound dressing prototype, based on anionic polymers ( sodium alginate--AlgNa, carboximethylcellulose--CMC) and magnetic nanoparticles loaded with usnic acid (Fe₃O₄@UA). The antimicrobial activity was tested against Staphylococcus aureus grown in biofilms. The biocompatibility testing model included an endothelial cell line from human umbilical vein and human foetal progenitor cells derived from the amniotic fluid, that express a wide spectrum of surface molecules involved in different vascular functions and inflammatory response, and may be used as skin regenerative support. The obtained results demonstrated that CMC/Fe₃O₄@UA and AlgNa/Fe₃O₄@UA are exhibiting structural and functional properties that recommend them for further applications in the biomedical field. They could be used alone or coated with different bio-active compounds, such as Fe₃O₄@UA, for the development of novel, multifunctional porous materials used in tissues regeneration, as antimicrobial substances releasing devices, providing also a mechanical support for the eukaryotic cells adhesion, and exhibiting the advantage of low cytotoxicity on human progenitor cells. The great antimicrobial properties exhibited by the newly synthesized nano-bioactive coatings are recommending them as successful candidates for improving the implanted devices surfaces used in regenerative medicine.
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Authors | Alexandru Mihai Grumezescu, Alina Maria Holban, Ecaterina Andronescu, George Dan Mogoşanu, Bogdan Stefan Vasile, Mariana Carmen Chifiriuc, Veronica Lazar, Eugen Andrei, Andrei Constantinescu, Horia Maniu |
Journal | International journal of pharmaceutics
(Int J Pharm)
Vol. 463
Issue 2
Pg. 146-54
(Mar 25 2014)
ISSN: 1873-3476 [Electronic] Netherlands |
PMID | 23994366
(Publication Type: Journal Article, Research Support, Non-U.S. Gov't)
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Copyright | Copyright © 2013 Elsevier B.V. All rights reserved. |
Chemical References |
- Alginates
- Anti-Infective Agents
- Benzofurans
- Hexuronic Acids
- Magnetite Nanoparticles
- usnic acid
- Glucuronic Acid
- Carboxymethylcellulose Sodium
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Topics |
- Alginates
(administration & dosage, chemistry)
- Anti-Infective Agents
(administration & dosage, chemistry)
- Bandages
- Benzofurans
(administration & dosage, chemistry)
- Biofilms
(drug effects, growth & development)
- Carboxymethylcellulose Sodium
(administration & dosage, chemistry)
- Cell Line
- Cells, Cultured
- Fetal Stem Cells
(physiology)
- Glucuronic Acid
(administration & dosage, chemistry)
- Hexuronic Acids
(administration & dosage, chemistry)
- Humans
- Magnetite Nanoparticles
(administration & dosage, chemistry, ultrastructure)
- Microscopy, Electron, Scanning
- Microscopy, Electron, Transmission
- Spectroscopy, Fourier Transform Infrared
- Staphylococcus aureus
(drug effects, physiology)
- X-Ray Diffraction
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