Designing structural features of novel benznidazole-loaded cationic nanoparticles for inducing slow drug release and improvement of biological efficacy
| Autor: | Raimundo F. de Araújo-Júnior, Arnóbio Antônio da Silva-Júnior, Matheus F. Fernandes-Pedrosa, Alaine M. dos Santos-Silva, Ana Luiza C. de S. L. Oliveira, Alianda Maira Cornélio, Lilia Basílio de Caland |
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| Rok vydání: | 2017 |
| Předmět: |
Materials science
Biocompatibility Nanoparticle Bioengineering Nanotechnology 02 engineering and technology 010402 general chemistry 01 natural sciences Biomaterials Zeta potential medicine Humans Particle Size Drug Carriers Cationic polymerization 021001 nanoscience & nanotechnology 0104 chemical sciences Drug Liberation HEK293 Cells Membrane Targeted drug delivery Nitroimidazoles Mechanics of Materials Benznidazole Biophysics Nanoparticles Nanocarriers 0210 nano-technology medicine.drug |
| Zdroj: | Materials Science and Engineering: C. 78:978-987 |
| ISSN: | 0928-4931 |
| DOI: | 10.1016/j.msec.2017.04.053 |
| Popis: | Several polymers have been investigated for producing cationic nanocarriers due to their ability to cross biological barriers. Polycations such as copolymers of polymethylmethacrylate are highlighted due to their biocompatibility and low toxicity. The purpose of this study was to produce small and narrow-sized cationic nanoparticles able to overcome cell membranes and improve the biological activity of benznidazole (BNZ) in normal and cancer cells. The effect of composition and procedure parameters of the used emulsification-solvent evaporation method were controlled for this purpose. The experimental approach included particle size, polydispersity index, zeta potential, atomic force microscopy (AFM), attenuated total reflectance Fourier transforms infrared spectroscopy (ATR- FTIR), drug loading efficiency, and physical stability assays. Spherical and stable (over six weeks) sub 150nm cationic nanoparticles were optimized, with the encapsulation efficiency >80%. The used drug/copolymer ratio modulated the slow drug release, which was adjusted by the parabolic diffusion mathematical model. In addition, the ability of the cationic nanoparticles improve the BNZ uptake in the normal kidney cells (HEK 293) and the human colorectal cancer cells (HT 29) demonstrate that this novel BNZ-loaded cationic has great potential as a chemotherapeutic application of benznidazole. |
| Databáze: | OpenAIRE |
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