Poly(isosorbide succinate)-based in situ forming implants as potential systems for local drug delivery: Preliminary studies
| Autor: | Aleksander Sieroń, Bożena Nowak, Ryszard Pilawka, Monika Śmiga-Matuszowicz, Anna Korytkowska-Wałach, Marta Lesiak |
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| Rok vydání: | 2018 |
| Předmět: |
Staphylococcus aureus
Isosorbide Materials science Bioengineering 02 engineering and technology 010402 general chemistry 01 natural sciences Doxycycline Hyclate Cell Line Biomaterials chemistry.chemical_compound Escherichia coli medicine Humans Cytotoxicity Drug Implants chemistry.chemical_classification Succinates Polymer 021001 nanoscience & nanotechnology 0104 chemical sciences chemistry Mechanics of Materials Succinic acid Doxycycline Drug delivery Implant 0210 nano-technology Antibacterial activity medicine.drug Nuclear chemistry |
| Zdroj: | Materials Science and Engineering: C. 91:311-317 |
| ISSN: | 0928-4931 |
| Popis: | In situ forming implants (ISFI) are proved to be effective drug delivery systems in various local therapies. This research focuses on preliminary characteristics of a new biodegradable ISFI formulation based on poly(isosorbide succinate) (PISU) for modulated, over 3-week, release of doxycycline hyclate (DOXY). The Alamar Blue cytotoxicity assay was carried out for PISU using FK-1 and AoSMC cell lines. PISU resin was found to be non-toxic in wide range of concentrations. The formulation viscosity, dependent on shear rate, facilitates its easy injection into required site where solid depot is formed immediately after injection. DOXY, incorporated into this formulation, was released in vitro within 21 days, during which collected solutions exhibited antibacterial activity against gram-positive and gram-negative bacteria Staphylococcus aureus and Escherichia coli, respectively. The morphology of the precipitated depots was characterized by scanning electron microscopy (SEM). The obtained results suggest potential applicability of this new PISU-based formulation as injectable drug delivery system forming implant at an injection site by phase separation and precipitation of the polymer. |
| Databáze: | OpenAIRE |
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