@article{10902/32825,
year = {2019},
month = {8},
url = {https://hdl.handle.net/10902/32825},
abstract = {Magnetotactic bacteria are aquatic microorganisms that internally biomineralize chains of magnetic nanoparticles (called magnetosomes) and use them as a compass. Here it is shown that magnetotactic bacteria of the strain Magnetospirillum gryphiswaldense present high potential as magnetic hyperthermia agents for cancer treatment. Their heating efficiency or specific absorption rate is determined using both calorimetric and AC magnetometry methods at different magnetic field amplitudes and frequencies. In addition, the effect of the alignment of the bacteria in the direction of the field during the hyperthermia experiments is also investigated. The experimental results demonstrate that the biological structure of the magnetosome chain of magnetotactic bacteria is perfect to enhance the hyperthermia efficiency. Furthermore, fluorescence and electron microscopy images show that these bacteria can be internalized by human lung carcinoma cells A549, and cytotoxicity studies reveal that they do not affect the viability or growth of the cancer cells. A preliminary in vitro hyperthermia study, working on clinical conditions, reveals that cancer cell proliferation is strongly affected by the hyperthermia treatment, making these bacteria promising candidates for biomedical applications.},
organization = {Spanish Government is acknowledged for funding under the project number MAT2017-83631-C3. USF coauthors acknowledge support from U.S. Department of Energy, Office of Basic Energy Sciences under Award No. DE-FG02-
07ER46438.},
publisher = {Wiley-VCH Verlag},
publisher = {Small, 2019, 15, 1902626},
title = {Unlocking the potential of magnetotactic bacteria as magnetic hyperthermia agents},
author = {Gandia, David and Gandarias, Lucía and Rodrigo, Irati and Robles Garcia, Joshua and Das, Raja and Garaio, Eneko and García, José Ángel and Phan, Manh-Huong and Srikanth, Hariharan and Orue, Iñaki and Alonso Masa, Javier and Muela, Alicia and Fernández Gubieda, María Luisa},
}