Bacterial Cultivation in High Magnetic Fields by 7-tesla Superconducting Magnet

A new superconducting magnet system for bacterial cultivation was developed. The superconducting magnet has a horizontal room-temperature bore with a diameter of 160mm, and provides a homogeneous magnetic field of 7T±0.5% for a 200-mm-long by 100-mm-diameter region. This homogeneous field region con...

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Published inTEION KOGAKU (Journal of Cryogenics and Superconductivity Society of Japan) Vol. 29; no. 12; pp. 646 - 652
Main Authors OKUDA, Masahiko, SAITO, Kazuyoshi, KAMIKAYO, Takeshi, ITO, Satoshi, MATSUMOTO, Kiyoshi, OKUNO, Kazumasa, TSUCHIYA, Koji, ANO, Takashi, SHODA, Makoto
Format Journal Article
LanguageEnglish
Published CRYOGENICS AND SUPERCONDUCTIVITY SOCIETY OF JAPAN 1994
Subjects
bacterial growth
cultivation
Escherichia coli
magnetic fields
superconducting magnets
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Summary:A new superconducting magnet system for bacterial cultivation was developed. The superconducting magnet has a horizontal room-temperature bore with a diameter of 160mm, and provides a homogeneous magnetic field of 7T±0.5% for a 200-mm-long by 100-mm-diameter region. This homogeneous field region contains an incubator, where bacteria are cultivated aerobically at 10 to 70°C±0.1°C while being shaken. The culture exposed to the high magnetic field is compared with a control culture incubated at below geomagnetic field strength. Cultivation of Escherichia coli was carried out both in homogeneous and in inhomogeneous fields, and 1.4-3.6 times the number of viable cells of the control culture was observed in a stationary phase.
ISSN:0389-2441
1880-0408
DOI:10.2221/jcsj.29.646