Hyperthermic effect in suspension of magnetosomes prepared by various methods

Milan Timko; Matus Molcan; Anezka Hashim; Andrzej Skumiel; Maren Müller; Hubert Gojzewski; Arkadiusz Jozefczak; Jozef Kovac; Michal Rajnak; Marcin Makowski; Peter Kop̌canský

doi:10.1109/TMAG.2012.2224098

Hyperthermic effect in suspension of magnetosomes prepared by various methods

Milan Timko^*, Matus Molcan, Anezka Hashim, Andrzej Skumiel, Maren Müller, Hubert Gojzewski, Arkadiusz Jozefczak, Jozef Kovac, Michal Rajnak, Marcin Makowski, Peter Kop̌canský

^*Corresponding author for this work

Research output: Contribution to journal › Article › Academic › peer-review

40 Citations (Scopus)

Abstract

The magnetic properties and hyperthermia effect were studied in solution of magnetosomes obtained by changing conditions during biomineralization of magnetotactic bacteria Magnetospirillum sp.AMB-1. It was shown that adding a higher amount of Wolfe's vitamin solution (WVS) or ferric quinate (FQ) cause increase of the mean diameter from 47 nm (normal condition) up to 52 nm and 58 nm respectively. As a consequence of this change the preparation conditions coercivity and Specific Absorption Rate (SAR) increased up to 20 Oe and 949 W/g_Fe for sample FQ, respectively. On the other hand the process of cultivation at the changed conditions markedly reduced the cultivation time. Also the isolated chains of magnetosome were shorter containing less amount of magnetosomes too.

Original language	English
Article number	6392428
Pages (from-to)	250-254
Number of pages	5
Journal	IEEE transactions on magnetics
Volume	49
Issue number	1
DOIs	https://doi.org/10.1109/TMAG.2012.2224098
Publication status	Published - 4 Jan 2013
Externally published	Yes

Keywords

Biomineralization
Magnetic fluids
Magnetotactic bacteria Magnetospirillum sp.AMB-1
Morphology
Specific absorption rate
Verwey transition
n/a OA procedure

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title = "Hyperthermic effect in suspension of magnetosomes prepared by various methods",

abstract = "The magnetic properties and hyperthermia effect were studied in solution of magnetosomes obtained by changing conditions during biomineralization of magnetotactic bacteria Magnetospirillum sp.AMB-1. It was shown that adding a higher amount of Wolfe's vitamin solution (WVS) or ferric quinate (FQ) cause increase of the mean diameter from 47 nm (normal condition) up to 52 nm and 58 nm respectively. As a consequence of this change the preparation conditions coercivity and Specific Absorption Rate (SAR) increased up to 20 Oe and 949 W/gFe for sample FQ, respectively. On the other hand the process of cultivation at the changed conditions markedly reduced the cultivation time. Also the isolated chains of magnetosome were shorter containing less amount of magnetosomes too.",

keywords = "Biomineralization, Magnetic fluids, Magnetotactic bacteria Magnetospirillum sp.AMB-1, Morphology, Specific absorption rate, Verwey transition, n/a OA procedure",

author = "Milan Timko and Matus Molcan and Anezka Hashim and Andrzej Skumiel and Maren M{\"u}ller and Hubert Gojzewski and Arkadiusz Jozefczak and Jozef Kovac and Michal Rajnak and Marcin Makowski and Peter Ko{\v p}cansk{\'y}",

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doi = "10.1109/TMAG.2012.2224098",

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AU - Timko, Milan

AU - Molcan, Matus

AU - Hashim, Anezka

AU - Skumiel, Andrzej

AU - Müller, Maren

AU - Gojzewski, Hubert

AU - Jozefczak, Arkadiusz

AU - Kovac, Jozef

AU - Rajnak, Michal

AU - Makowski, Marcin

AU - Kop̌canský, Peter

PY - 2013/1/4

Y1 - 2013/1/4

N2 - The magnetic properties and hyperthermia effect were studied in solution of magnetosomes obtained by changing conditions during biomineralization of magnetotactic bacteria Magnetospirillum sp.AMB-1. It was shown that adding a higher amount of Wolfe's vitamin solution (WVS) or ferric quinate (FQ) cause increase of the mean diameter from 47 nm (normal condition) up to 52 nm and 58 nm respectively. As a consequence of this change the preparation conditions coercivity and Specific Absorption Rate (SAR) increased up to 20 Oe and 949 W/gFe for sample FQ, respectively. On the other hand the process of cultivation at the changed conditions markedly reduced the cultivation time. Also the isolated chains of magnetosome were shorter containing less amount of magnetosomes too.

AB - The magnetic properties and hyperthermia effect were studied in solution of magnetosomes obtained by changing conditions during biomineralization of magnetotactic bacteria Magnetospirillum sp.AMB-1. It was shown that adding a higher amount of Wolfe's vitamin solution (WVS) or ferric quinate (FQ) cause increase of the mean diameter from 47 nm (normal condition) up to 52 nm and 58 nm respectively. As a consequence of this change the preparation conditions coercivity and Specific Absorption Rate (SAR) increased up to 20 Oe and 949 W/gFe for sample FQ, respectively. On the other hand the process of cultivation at the changed conditions markedly reduced the cultivation time. Also the isolated chains of magnetosome were shorter containing less amount of magnetosomes too.

KW - Biomineralization

KW - Magnetic fluids

KW - Magnetotactic bacteria Magnetospirillum sp.AMB-1

KW - Morphology

KW - Specific absorption rate

KW - Verwey transition

KW - n/a OA procedure

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DO - 10.1109/TMAG.2012.2224098

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SP - 250

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JO - IEEE transactions on magnetics

JF - IEEE transactions on magnetics

IS - 1

M1 - 6392428

ER -

Hyperthermic effect in suspension of magnetosomes prepared by various methods

Abstract

Keywords

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