Controlled assembly of Poly(D,L-lactide-co-glycolide)/hydroxyapatite core-shell nanospheres under ultrasonic irradiation
Апстракт
An ultrasound field was applied to obtain PLGA/HAp biocomposite nanospheres. Formulation of PLGA/HAp, composite revealed significant dependence of the morphology of the obtained composite on synthesis parameters, like the intensity of applied ultrasonic field, polymeric and ceramic parts wt.% ratio in the composite, temperature of the medium, type of surfactant, and the sequence of steps in the formation of PLGA/HAp. Optimal parameters for the formation of PLGA/HAp included a lower content of the ceramic phase (PLGA/HAp = 90: 10), higher power of ultrasonic field (P = 142.4 W), lower temperature of the medium during ultrasonic treatment (T = 8 degrees C), dilute solution of PVP as surfactant and dispersion of hydroxyapatite in polymer solution in order to achieve required homogeneity before the formulation of the composite. The morphology of PLGA/HAp particles synthesized under these conditions was highly regular: sphere-like, with particles of very small dimensions (150-320 nm), highl...y uniform particle size distribution and characteristic planar spatial self-organization. These characteristics indicate significant improvements in PLGA/HAp composite resulting from ultrasonic method. (C) 2008 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
Кључне речи:
Biocomposite / PLGA/hydroxyapatite / Nanospheres / Core-shell / Ultrasonic methodИзвор:
Acta Biomaterialia, 2009, 5, 1, 208-218Финансирање / пројекти:
- Синтеза функционалних материјала са контролисаном структуром на молекуларном и нано нивоу (RS-MESTD-MPN2006-2010-142006)
DOI: 10.1016/j.actbio.2008.07.026
ISSN: 1742-7061; 1878-7568
PubMed: 18753023
WoS: 000261922400022
Scopus: 2-s2.0-56349094659
Колекције
Институција/група
VinčaTY - JOUR AU - Jevtic, M. AU - Radulovic, A. AU - Ignjatović, Nenad L. AU - Mitrić, Miodrag AU - Uskoković, Dragan PY - 2009 UR - https://vinar.vin.bg.ac.rs/handle/123456789/3597 AB - An ultrasound field was applied to obtain PLGA/HAp biocomposite nanospheres. Formulation of PLGA/HAp, composite revealed significant dependence of the morphology of the obtained composite on synthesis parameters, like the intensity of applied ultrasonic field, polymeric and ceramic parts wt.% ratio in the composite, temperature of the medium, type of surfactant, and the sequence of steps in the formation of PLGA/HAp. Optimal parameters for the formation of PLGA/HAp included a lower content of the ceramic phase (PLGA/HAp = 90: 10), higher power of ultrasonic field (P = 142.4 W), lower temperature of the medium during ultrasonic treatment (T = 8 degrees C), dilute solution of PVP as surfactant and dispersion of hydroxyapatite in polymer solution in order to achieve required homogeneity before the formulation of the composite. The morphology of PLGA/HAp particles synthesized under these conditions was highly regular: sphere-like, with particles of very small dimensions (150-320 nm), highly uniform particle size distribution and characteristic planar spatial self-organization. These characteristics indicate significant improvements in PLGA/HAp composite resulting from ultrasonic method. (C) 2008 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved. T2 - Acta Biomaterialia T1 - Controlled assembly of Poly(D,L-lactide-co-glycolide)/hydroxyapatite core-shell nanospheres under ultrasonic irradiation VL - 5 IS - 1 SP - 208 EP - 218 DO - 10.1016/j.actbio.2008.07.026 ER -
@article{ author = "Jevtic, M. and Radulovic, A. and Ignjatović, Nenad L. and Mitrić, Miodrag and Uskoković, Dragan", year = "2009", abstract = "An ultrasound field was applied to obtain PLGA/HAp biocomposite nanospheres. Formulation of PLGA/HAp, composite revealed significant dependence of the morphology of the obtained composite on synthesis parameters, like the intensity of applied ultrasonic field, polymeric and ceramic parts wt.% ratio in the composite, temperature of the medium, type of surfactant, and the sequence of steps in the formation of PLGA/HAp. Optimal parameters for the formation of PLGA/HAp included a lower content of the ceramic phase (PLGA/HAp = 90: 10), higher power of ultrasonic field (P = 142.4 W), lower temperature of the medium during ultrasonic treatment (T = 8 degrees C), dilute solution of PVP as surfactant and dispersion of hydroxyapatite in polymer solution in order to achieve required homogeneity before the formulation of the composite. The morphology of PLGA/HAp particles synthesized under these conditions was highly regular: sphere-like, with particles of very small dimensions (150-320 nm), highly uniform particle size distribution and characteristic planar spatial self-organization. These characteristics indicate significant improvements in PLGA/HAp composite resulting from ultrasonic method. (C) 2008 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.", journal = "Acta Biomaterialia", title = "Controlled assembly of Poly(D,L-lactide-co-glycolide)/hydroxyapatite core-shell nanospheres under ultrasonic irradiation", volume = "5", number = "1", pages = "208-218", doi = "10.1016/j.actbio.2008.07.026" }
Jevtic, M., Radulovic, A., Ignjatović, N. L., Mitrić, M.,& Uskoković, D.. (2009). Controlled assembly of Poly(D,L-lactide-co-glycolide)/hydroxyapatite core-shell nanospheres under ultrasonic irradiation. in Acta Biomaterialia, 5(1), 208-218. https://doi.org/10.1016/j.actbio.2008.07.026
Jevtic M, Radulovic A, Ignjatović NL, Mitrić M, Uskoković D. Controlled assembly of Poly(D,L-lactide-co-glycolide)/hydroxyapatite core-shell nanospheres under ultrasonic irradiation. in Acta Biomaterialia. 2009;5(1):208-218. doi:10.1016/j.actbio.2008.07.026 .
Jevtic, M., Radulovic, A., Ignjatović, Nenad L., Mitrić, Miodrag, Uskoković, Dragan, "Controlled assembly of Poly(D,L-lactide-co-glycolide)/hydroxyapatite core-shell nanospheres under ultrasonic irradiation" in Acta Biomaterialia, 5, no. 1 (2009):208-218, https://doi.org/10.1016/j.actbio.2008.07.026 . .