Magnetic characterization of iron oxides for magnetic resonance imaging
The OMP particle and four additional iron oxide samples were investigated in terms of zero field cooled magnetization (ZFCM) curves and hysteresis loops. The observation of superparamagnetic blocking and the absence of magnetic remanence demonstrated that the samples are superparamagnetic at room te...
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| Veröffentlicht in: | Magnetic resonance in medicine 1994-03, Vol.31 (3), p.268-272 |
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| container_title | Magnetic resonance in medicine |
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| creator | Sjøgren, Carl E. Briley-Sæbø, Karen Hanson, Maj Johansson, Christer |
| description | The OMP particle and four additional iron oxide samples were investigated in terms of zero field cooled magnetization (ZFCM) curves and hysteresis loops. The observation of superparamagnetic blocking and the absence of magnetic remanence demonstrated that the samples are superparamagnetic at room temperature. The magnitude of the ZFCM peak temperatures are in qualitative agreement with the iron oxide crystal size. One sample deviated from the remaining four in that it had a significantly lower magnetic moment and an irregular ZFCM curve showing the presence of various less magnetic phases. The similar results obtained with the OMP particles and the individual OMP crystallites without the polymer support show that the superparamagnetic properties of the individual OMP crystallites are retained on the OMP particle. Depending on the application, the ZFCM experiment may be viewed as an alternative or a supplement to Mössbauer spectroscopy in studies of the superaparamagnetic blocking of iron oxides. |
| doi_str_mv | 10.1002/mrm.1910310305 |
| format | Article |
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The observation of superparamagnetic blocking and the absence of magnetic remanence demonstrated that the samples are superparamagnetic at room temperature. The magnitude of the ZFCM peak temperatures are in qualitative agreement with the iron oxide crystal size. One sample deviated from the remaining four in that it had a significantly lower magnetic moment and an irregular ZFCM curve showing the presence of various less magnetic phases. The similar results obtained with the OMP particles and the individual OMP crystallites without the polymer support show that the superparamagnetic properties of the individual OMP crystallites are retained on the OMP particle. Depending on the application, the ZFCM experiment may be viewed as an alternative or a supplement to Mössbauer spectroscopy in studies of the superaparamagnetic blocking of iron oxides.</description><identifier>ISSN: 0740-3194</identifier><identifier>EISSN: 1522-2594</identifier><identifier>DOI: 10.1002/mrm.1910310305</identifier><identifier>PMID: 8057797</identifier><identifier>CODEN: MRMEEN</identifier><language>eng</language><publisher>Baltimore: Wiley Subscription Services, Inc., A Wiley Company</publisher><subject>Biological and medical sciences ; contrast agents ; Contrast Media ; Crystallization ; Ferric Compounds ; Investigative techniques, diagnostic techniques (general aspects) ; iron oxide ; Magnetic Resonance Imaging ; Magnetics ; Medical sciences ; Miscellaneous. Technology ; OMP particle ; Particle Size ; Radiodiagnosis. Nmr imagery. Nmr spectrometry ; superparamagnetism</subject><ispartof>Magnetic resonance in medicine, 1994-03, Vol.31 (3), p.268-272</ispartof><rights>Copyright © 1994 Wiley‐Liss, Inc., A Wiley Company</rights><rights>1994 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c4075-169399c866c142a25245296019a003beb9758408f07160df5185c857ef0b73b43</citedby><cites>FETCH-LOGICAL-c4075-169399c866c142a25245296019a003beb9758408f07160df5185c857ef0b73b43</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1002%2Fmrm.1910310305$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1002%2Fmrm.1910310305$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,776,780,1411,27901,27902,45550,45551</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=3958044$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/8057797$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Sjøgren, Carl E.</creatorcontrib><creatorcontrib>Briley-Sæbø, Karen</creatorcontrib><creatorcontrib>Hanson, Maj</creatorcontrib><creatorcontrib>Johansson, Christer</creatorcontrib><title>Magnetic characterization of iron oxides for magnetic resonance imaging</title><title>Magnetic resonance in medicine</title><addtitle>Magn. Reson. Med</addtitle><description>The OMP particle and four additional iron oxide samples were investigated in terms of zero field cooled magnetization (ZFCM) curves and hysteresis loops. The observation of superparamagnetic blocking and the absence of magnetic remanence demonstrated that the samples are superparamagnetic at room temperature. The magnitude of the ZFCM peak temperatures are in qualitative agreement with the iron oxide crystal size. One sample deviated from the remaining four in that it had a significantly lower magnetic moment and an irregular ZFCM curve showing the presence of various less magnetic phases. The similar results obtained with the OMP particles and the individual OMP crystallites without the polymer support show that the superparamagnetic properties of the individual OMP crystallites are retained on the OMP particle. Depending on the application, the ZFCM experiment may be viewed as an alternative or a supplement to Mössbauer spectroscopy in studies of the superaparamagnetic blocking of iron oxides.</description><subject>Biological and medical sciences</subject><subject>contrast agents</subject><subject>Contrast Media</subject><subject>Crystallization</subject><subject>Ferric Compounds</subject><subject>Investigative techniques, diagnostic techniques (general aspects)</subject><subject>iron oxide</subject><subject>Magnetic Resonance Imaging</subject><subject>Magnetics</subject><subject>Medical sciences</subject><subject>Miscellaneous. Technology</subject><subject>OMP particle</subject><subject>Particle Size</subject><subject>Radiodiagnosis. Nmr imagery. Nmr spectrometry</subject><subject>superparamagnetism</subject><issn>0740-3194</issn><issn>1522-2594</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1994</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqFkM1LAzEQxYMotVav3oQ9iLetk02y2Ryl2iq0iqJ4DNk0W6P7ockWW_96t-xa8SQMDMz83uTlIXSMYYgBovPCFUMsMJCmgO2gPmZRFEZM0F3UB04hJFjQfXTg_SsACMFpD_USYJwL3keTmVqUprY60C_KKV0bZ79UbasyqLLAuk1f2bnxQVa5oPiBnfFVqUptAtvMbLk4RHuZyr056voAPY2vHkfX4fRucjO6mIaaAmchjgURQidxrDGNVMQiyiIRAxYKgKQmFZwlFJIMOI5hnjGcMJ0wbjJIOUkpGaCz9u67qz6WxteysF6bPFelqZZe8jhmNCG4AYctqF3lvTOZfHeNV7eWGOQmOdkkJ3-TawQn3eVlWpj5Fu-iavan3V55rfLMNd-3fosRwRKgG4OixT5tbtb_PCpnD7M_FsJWa31tVlutcm8y5oQz-Xw7kXhExvjynsgx-QamgZQF</recordid><startdate>199403</startdate><enddate>199403</enddate><creator>Sjøgren, Carl E.</creator><creator>Briley-Sæbø, Karen</creator><creator>Hanson, Maj</creator><creator>Johansson, Christer</creator><general>Wiley Subscription Services, Inc., A Wiley Company</general><general>Williams & Wilkins</general><scope>BSCLL</scope><scope>IQODW</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope></search><sort><creationdate>199403</creationdate><title>Magnetic characterization of iron oxides for magnetic resonance imaging</title><author>Sjøgren, Carl E. ; Briley-Sæbø, Karen ; Hanson, Maj ; Johansson, Christer</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c4075-169399c866c142a25245296019a003beb9758408f07160df5185c857ef0b73b43</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1994</creationdate><topic>Biological and medical sciences</topic><topic>contrast agents</topic><topic>Contrast Media</topic><topic>Crystallization</topic><topic>Ferric Compounds</topic><topic>Investigative techniques, diagnostic techniques (general aspects)</topic><topic>iron oxide</topic><topic>Magnetic Resonance Imaging</topic><topic>Magnetics</topic><topic>Medical sciences</topic><topic>Miscellaneous. Technology</topic><topic>OMP particle</topic><topic>Particle Size</topic><topic>Radiodiagnosis. Nmr imagery. Nmr spectrometry</topic><topic>superparamagnetism</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Sjøgren, Carl E.</creatorcontrib><creatorcontrib>Briley-Sæbø, Karen</creatorcontrib><creatorcontrib>Hanson, Maj</creatorcontrib><creatorcontrib>Johansson, Christer</creatorcontrib><collection>Istex</collection><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Magnetic resonance in medicine</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Sjøgren, Carl E.</au><au>Briley-Sæbø, Karen</au><au>Hanson, Maj</au><au>Johansson, Christer</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Magnetic characterization of iron oxides for magnetic resonance imaging</atitle><jtitle>Magnetic resonance in medicine</jtitle><addtitle>Magn. Reson. Med</addtitle><date>1994-03</date><risdate>1994</risdate><volume>31</volume><issue>3</issue><spage>268</spage><epage>272</epage><pages>268-272</pages><issn>0740-3194</issn><eissn>1522-2594</eissn><coden>MRMEEN</coden><abstract>The OMP particle and four additional iron oxide samples were investigated in terms of zero field cooled magnetization (ZFCM) curves and hysteresis loops. The observation of superparamagnetic blocking and the absence of magnetic remanence demonstrated that the samples are superparamagnetic at room temperature. The magnitude of the ZFCM peak temperatures are in qualitative agreement with the iron oxide crystal size. One sample deviated from the remaining four in that it had a significantly lower magnetic moment and an irregular ZFCM curve showing the presence of various less magnetic phases. The similar results obtained with the OMP particles and the individual OMP crystallites without the polymer support show that the superparamagnetic properties of the individual OMP crystallites are retained on the OMP particle. Depending on the application, the ZFCM experiment may be viewed as an alternative or a supplement to Mössbauer spectroscopy in studies of the superaparamagnetic blocking of iron oxides.</abstract><cop>Baltimore</cop><pub>Wiley Subscription Services, Inc., A Wiley Company</pub><pmid>8057797</pmid><doi>10.1002/mrm.1910310305</doi><tpages>5</tpages></addata></record> |
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| ispartof | Magnetic resonance in medicine, 1994-03, Vol.31 (3), p.268-272 |
| issn | 0740-3194 1522-2594 |
| language | eng |
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| source | MEDLINE; Wiley Online Library Journals Frontfile Complete |
| subjects | Biological and medical sciences contrast agents Contrast Media Crystallization Ferric Compounds Investigative techniques, diagnostic techniques (general aspects) iron oxide Magnetic Resonance Imaging Magnetics Medical sciences Miscellaneous. Technology OMP particle Particle Size Radiodiagnosis. Nmr imagery. Nmr spectrometry superparamagnetism |
| title | Magnetic characterization of iron oxides for magnetic resonance imaging |
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