Determination of the concentration of magnetotactic bacteria by means of susceptibility measurements
High concentrations of magnetotactic bacteria are needed for their practical applications, as investigations of domains in soft magnetic materials. The present paper reports experimental studies, the initial aim of which has been to determine the concentration c of magnetotactic bacteria within a cu...
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| Veröffentlicht in: | Japanese Journal of Applied Physics 1993, Vol.32 (1A), p.252-260 |
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| container_title | Japanese Journal of Applied Physics |
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| creator | HARASKO, G PFÜTZNER, H RAPP, E FUTSCHIK, K SCHÜLER, D |
| description | High concentrations of magnetotactic bacteria are needed for their practical applications, as investigations of domains in soft magnetic materials. The present paper reports experimental studies, the initial aim of which has been to determine the concentration
c
of magnetotactic bacteria within a culture medium from the measured susceptibility χ. A pure culture of
Magnetospirillum gryphiswaldense
as well as a natural population of cocci were investigated.
M. gryphiswaldense
showed a linear relation of the measured χ with the concentration
c
. Cocci showed characteristics which complicate the determination of
c
. Problems of manipulation of cocci by means of magnetic fields are discussed. For an effective interpretation of χ attempts were made to divide natural populations in sub-populations of more uniform characteristics by a magnetophoresis technique and by changing the polarity of bacteria. |
| doi_str_mv | 10.1143/jjap.32.252 |
| format | Article |
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c
of magnetotactic bacteria within a culture medium from the measured susceptibility χ. A pure culture of
Magnetospirillum gryphiswaldense
as well as a natural population of cocci were investigated.
M. gryphiswaldense
showed a linear relation of the measured χ with the concentration
c
. Cocci showed characteristics which complicate the determination of
c
. Problems of manipulation of cocci by means of magnetic fields are discussed. For an effective interpretation of χ attempts were made to divide natural populations in sub-populations of more uniform characteristics by a magnetophoresis technique and by changing the polarity of bacteria.</description><identifier>ISSN: 0021-4922</identifier><identifier>EISSN: 1347-4065</identifier><identifier>DOI: 10.1143/jjap.32.252</identifier><identifier>CODEN: JJAPA5</identifier><language>eng</language><publisher>Tokyo: Japanese journal of applied physics</publisher><subject>Bacteriology ; Biological and medical sciences ; Biotechnology ; Fundamental and applied biological sciences. Psychology ; Microbiology ; Motility, taxis</subject><ispartof>Japanese Journal of Applied Physics, 1993, Vol.32 (1A), p.252-260</ispartof><rights>1993 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c386t-5fbeec7d2fc444929d16d2e8c8e15f9d766737466ed7ed96b973ed25eb1a584a3</citedby><cites>FETCH-LOGICAL-c386t-5fbeec7d2fc444929d16d2e8c8e15f9d766737466ed7ed96b973ed25eb1a584a3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,4009,27902,27903,27904</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=4741415$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>HARASKO, G</creatorcontrib><creatorcontrib>PFÜTZNER, H</creatorcontrib><creatorcontrib>RAPP, E</creatorcontrib><creatorcontrib>FUTSCHIK, K</creatorcontrib><creatorcontrib>SCHÜLER, D</creatorcontrib><title>Determination of the concentration of magnetotactic bacteria by means of susceptibility measurements</title><title>Japanese Journal of Applied Physics</title><description>High concentrations of magnetotactic bacteria are needed for their practical applications, as investigations of domains in soft magnetic materials. The present paper reports experimental studies, the initial aim of which has been to determine the concentration
c
of magnetotactic bacteria within a culture medium from the measured susceptibility χ. A pure culture of
Magnetospirillum gryphiswaldense
as well as a natural population of cocci were investigated.
M. gryphiswaldense
showed a linear relation of the measured χ with the concentration
c
. Cocci showed characteristics which complicate the determination of
c
. Problems of manipulation of cocci by means of magnetic fields are discussed. For an effective interpretation of χ attempts were made to divide natural populations in sub-populations of more uniform characteristics by a magnetophoresis technique and by changing the polarity of bacteria.</description><subject>Bacteriology</subject><subject>Biological and medical sciences</subject><subject>Biotechnology</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Microbiology</subject><subject>Motility, taxis</subject><issn>0021-4922</issn><issn>1347-4065</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1993</creationdate><recordtype>article</recordtype><recordid>eNo9kMtOwzAURC0EEqWw4geyQGxQSvxMsqx4V5VgAWvLsW_AVeIE21n073Fp1dXojs4djQaha1wsMGb0frNR44KSBeHkBM0wZWXOCsFP0awoCM5ZTcg5ughhk07BGZ4h8wgRfG-dinZw2dBm8QcyPTgNLvqj2atvB3GISkersyYJeKuyZpv1oFzYIWEKGsZoG9vZ-O-HyUOfYsIlOmtVF-DqoHP09fz0-fCar99f3h6W61zTSsSctw2ALg1pNWOpa22wMAQqXQHmbW1KIUpaMiHAlGBq0dQlBUM4NFjxiik6R7f73NEPvxOEKHubSnWdcjBMQWLB0xocJ_BuD2o_hOChlaO3vfJbiQu5W1KuVssPSYlMSyb65hCrglZd65XTNhxfWMkww5z-Ac1bdf0</recordid><startdate>1993</startdate><enddate>1993</enddate><creator>HARASKO, G</creator><creator>PFÜTZNER, H</creator><creator>RAPP, E</creator><creator>FUTSCHIK, K</creator><creator>SCHÜLER, D</creator><general>Japanese journal of applied physics</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QO</scope><scope>8FD</scope><scope>FR3</scope><scope>P64</scope></search><sort><creationdate>1993</creationdate><title>Determination of the concentration of magnetotactic bacteria by means of susceptibility measurements</title><author>HARASKO, G ; PFÜTZNER, H ; RAPP, E ; FUTSCHIK, K ; SCHÜLER, D</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c386t-5fbeec7d2fc444929d16d2e8c8e15f9d766737466ed7ed96b973ed25eb1a584a3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1993</creationdate><topic>Bacteriology</topic><topic>Biological and medical sciences</topic><topic>Biotechnology</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>Microbiology</topic><topic>Motility, taxis</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>HARASKO, G</creatorcontrib><creatorcontrib>PFÜTZNER, H</creatorcontrib><creatorcontrib>RAPP, E</creatorcontrib><creatorcontrib>FUTSCHIK, K</creatorcontrib><creatorcontrib>SCHÜLER, D</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Biotechnology Research Abstracts</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Biotechnology and BioEngineering Abstracts</collection><jtitle>Japanese Journal of Applied Physics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>HARASKO, G</au><au>PFÜTZNER, H</au><au>RAPP, E</au><au>FUTSCHIK, K</au><au>SCHÜLER, D</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Determination of the concentration of magnetotactic bacteria by means of susceptibility measurements</atitle><jtitle>Japanese Journal of Applied Physics</jtitle><date>1993</date><risdate>1993</risdate><volume>32</volume><issue>1A</issue><spage>252</spage><epage>260</epage><pages>252-260</pages><issn>0021-4922</issn><eissn>1347-4065</eissn><coden>JJAPA5</coden><abstract>High concentrations of magnetotactic bacteria are needed for their practical applications, as investigations of domains in soft magnetic materials. The present paper reports experimental studies, the initial aim of which has been to determine the concentration
c
of magnetotactic bacteria within a culture medium from the measured susceptibility χ. A pure culture of
Magnetospirillum gryphiswaldense
as well as a natural population of cocci were investigated.
M. gryphiswaldense
showed a linear relation of the measured χ with the concentration
c
. Cocci showed characteristics which complicate the determination of
c
. Problems of manipulation of cocci by means of magnetic fields are discussed. For an effective interpretation of χ attempts were made to divide natural populations in sub-populations of more uniform characteristics by a magnetophoresis technique and by changing the polarity of bacteria.</abstract><cop>Tokyo</cop><pub>Japanese journal of applied physics</pub><doi>10.1143/jjap.32.252</doi><tpages>9</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0021-4922 |
| ispartof | Japanese Journal of Applied Physics, 1993, Vol.32 (1A), p.252-260 |
| issn | 0021-4922 1347-4065 |
| language | eng |
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| source | Institute of Physics Journals |
| subjects | Bacteriology Biological and medical sciences Biotechnology Fundamental and applied biological sciences. Psychology Microbiology Motility, taxis |
| title | Determination of the concentration of magnetotactic bacteria by means of susceptibility measurements |
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