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Moreno, A.J.; Gonzalez, E.; Godoy, M.; Pettinari, J.; Antonel, P.S.; Jorge, G.; Bekeris, V. "Spatial resolution in micrometric periodic assemblies of magnetotactic bacteria and magnetic nanoparticles" (2013) IEEE Transactions on Magnetics. 49(8):4572-4575
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Abstract:

We developed a simple method for obtaining micro arrays of magnetic nanoparticles using audio tapes. We present spatial micro-arrangements of magnetotactic bacteria (Magnetospirillum gryphiswaldense), magnetite (Fe 3 O 4 ) and functionalized cobalt ferrite (CoFe 2 O 4 ) nanoparticles. Computer generated square audio waves of different frequencies (100 Hz-10 kHz) were recorded leading to magnetic patterns of different micrometer spatial wavelengths. Drops of aqueous suspensions were deposited on the tapes to control particle density, and bacteria and particles were trapped at locations where magnetic energy is minimized, as observed using conventional optical microscopy after the dispersium medium was evaporated. We discuss the spatial limits of the magnetic nanoparticles and the bacteria assemblies, concluding that cell walls of bacteria inhibit agglomeration and optimize spatial organization. © 1965-2012 IEEE.

Registro:

Documento: Artículo
Título:Spatial resolution in micrometric periodic assemblies of magnetotactic bacteria and magnetic nanoparticles
Autor:Moreno, A.J.; Gonzalez, E.; Godoy, M.; Pettinari, J.; Antonel, P.S.; Jorge, G.; Bekeris, V.
Filiación:Laboratorio de Bajas Temperaturas, Departamento de Física, FCEyN, UBA, IFIBA, CONICET, Buenos Aires, Argentina
Departamento de Física, FCEyN, UBA, Buenos Aires, Argentina
Laboratorio de Genética y Ecología Microbianas, Departamento de Química Biológica, FCEyN, UBA, Buenos Aires, Argentina
Laboratorio de Arreglos Multisensoriales, Departamento de Química Inorgánica, Analítica y Química Física, FCEyN, UBA INQUIMAE, CONICET, Buenos Aires, Argentina
Palabras clave:Magnetic nanoparticles; Magnetic particle imaging; Magnetic tapes; Magnetite; Microassembly; Microorganisms; Aqueous suspensions; Magnetic nano-particles; Magnetic particle imaging; Magnetospirillum gryphiswaldense; Magnetotactic Bacteria; Micro assembly; Spatial organization; Spatial wavelengths; Magnetic tape; Magnetite; Magnetite nanoparticles; Microorganisms; Nanoparticles; Suspensions (fluids); Bacteria
Año:2013
Volumen:49
Número:8
Página de inicio:4572
Página de fin:4575
DOI: http://dx.doi.org/10.1109/TMAG.2013.2259224
Título revista:IEEE Transactions on Magnetics
Título revista abreviado:IEEE Trans Magn
ISSN:00189464
CODEN:IEMGA
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00189464_v49_n8_p4572_Moreno

Referencias:

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Citas:

---------- APA ----------
Moreno, A.J., Gonzalez, E., Godoy, M., Pettinari, J., Antonel, P.S., Jorge, G. & Bekeris, V. (2013) . Spatial resolution in micrometric periodic assemblies of magnetotactic bacteria and magnetic nanoparticles. IEEE Transactions on Magnetics, 49(8), 4572-4575.
http://dx.doi.org/10.1109/TMAG.2013.2259224
---------- CHICAGO ----------
Moreno, A.J., Gonzalez, E., Godoy, M., Pettinari, J., Antonel, P.S., Jorge, G., et al. "Spatial resolution in micrometric periodic assemblies of magnetotactic bacteria and magnetic nanoparticles" . IEEE Transactions on Magnetics 49, no. 8 (2013) : 4572-4575.
http://dx.doi.org/10.1109/TMAG.2013.2259224
---------- MLA ----------
Moreno, A.J., Gonzalez, E., Godoy, M., Pettinari, J., Antonel, P.S., Jorge, G., et al. "Spatial resolution in micrometric periodic assemblies of magnetotactic bacteria and magnetic nanoparticles" . IEEE Transactions on Magnetics, vol. 49, no. 8, 2013, pp. 4572-4575.
http://dx.doi.org/10.1109/TMAG.2013.2259224
---------- VANCOUVER ----------
Moreno, A.J., Gonzalez, E., Godoy, M., Pettinari, J., Antonel, P.S., Jorge, G., et al. Spatial resolution in micrometric periodic assemblies of magnetotactic bacteria and magnetic nanoparticles. IEEE Trans Magn. 2013;49(8):4572-4575.
http://dx.doi.org/10.1109/TMAG.2013.2259224