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Novel type of hollow hydrogel microspheres with magnetite and silver nanoparticles [Elektronski vir]Lengert, Ekaterina ...A novel type of microcontainers based on hollow silver alginate microspheres and magnetite nanoparticles is reported as development of recently published technology. Magnetite nanoparticles were ... incorporated by two methods - co-precipitation with porous calcium carbonate during template formation and adsorption onto CaCO3 particles or microcontainers' shell. Amount of magnetite loaded and microshells size (4.6 to 6.9 μm) were found to depend on the chosen method for magnetite nanoparticles incorporation. Stability of hollow microshells in saline, phosphate buffer and culturing media was studied. Microcontainers' susceptibility to magnetic field was investigated in solutions of varied viscosity, and their group movement velocity under constant magnetic field was evaluated by sequential optical microscopy imaging. Cell viability tests with prepared microshells were performed that demonstrated negligible cytotoxicity effect on human dermal fibroblasts cells. With HeLa cells moderate viability inhibition was found at high carriers:cells ratio at early time points which is attributed to more active and receptor-mediated endocytosis of carriers as well as known cytotoxicity of magnetite in some cancer cells. At 24 and 48 h time points HeLa cells proliferation fully recovers. Reported data opens perspectives for further biomedical-oriented studies and application of this novel kind of microcontainers with a number of techniques applicable for imaging, control and triggered cargo release provided by presence of silver and magnetite nanoparticles in the carriers and their suitability for further versatile functionalization by traditional LbL approach if needed.Source: Materials science & engineering. C, Biomimetic materials, sensors and systems [Elektronski vir]. - ISSN 1873-0191 (Vol. 98, May 2019, str. 1114-1121)Type of material - e-article ; adult, seriousPublish date - 2019Language - englishCOBISS.SI-ID - 178712067
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Lengert, Ekaterina | ![]() |
Kozlova, Anastasiia | ![]() |
Verkhovskii, Roman A. | 58452 |
Bukreeva, Tatyana V. | ![]() |
Source: Personal bibliographies
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