Deuteron and sodium—23 NMR studies of lecithin mesophases
The deuteron quadrupole splitting of lamellar mesophase samples containing lecithin and heavy water depends strongly on sample composition and temperature. Broadening effects due to cholesterol may arise from deuteron exchange between water and cholesterol. In samples composed of lecithin, cholester...
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| Veröffentlicht in: | Chemistry and physics of lipids 1974-07, Vol.12 (4), p.261-270 |
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| container_title | Chemistry and physics of lipids |
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| creator | Persson, Nils-Ola Lindblom, Göran Lindman, Björn Arvidson, Gösta |
| description | The deuteron quadrupole splitting of lamellar mesophase samples containing lecithin and heavy water depends strongly on sample composition and temperature. Broadening effects due to cholesterol may arise from deuteron exchange between water and cholesterol. In samples composed of lecithin, cholesterol, alkali chloride and heavy water, or of lecithin, alkali cholate and heavy water, the degree of water orientation is lower with K
+ ions than with the other alkali ions.
23Na NMR experiments show K
+ ions to interact more strongly with the amphiphilic molecules than other alkali ions. A decrease in
23Na line width on cholesterol addition is ascribed to a partial release of sodium ions from the lamellae. The
23Na quadrupole splitting increases with increasing cholesterol content and this may be due to a reduced motional freedom of the polar end of the lecithin molecule. |
| doi_str_mv | 10.1016/0009-3084(74)90054-1 |
| format | Article |
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+ ions than with the other alkali ions.
23Na NMR experiments show K
+ ions to interact more strongly with the amphiphilic molecules than other alkali ions. A decrease in
23Na line width on cholesterol addition is ascribed to a partial release of sodium ions from the lamellae. The
23Na quadrupole splitting increases with increasing cholesterol content and this may be due to a reduced motional freedom of the polar end of the lecithin molecule.</description><identifier>ISSN: 0009-3084</identifier><identifier>EISSN: 1873-2941</identifier><identifier>DOI: 10.1016/0009-3084(74)90054-1</identifier><identifier>PMID: 4851335</identifier><language>eng</language><publisher>Ireland: Elsevier Ireland Ltd</publisher><subject>Binding Sites ; Cesium ; Cholesterol ; Cholic Acids ; Deuterium ; Hydrogen-Ion Concentration ; Kinetics ; Lithium ; Magnetic Resonance Spectroscopy ; Molecular Conformation ; Phosphatidylcholines ; Potassium ; Rubidium ; Sodium ; Sodium Isotopes ; Temperature ; Thermodynamics</subject><ispartof>Chemistry and physics of lipids, 1974-07, Vol.12 (4), p.261-270</ispartof><rights>1974</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c357t-2bb01bfeeab65ee32ea3d85fd79d85297c6e9da8623de9b8ec8ed19f129418dd3</citedby><cites>FETCH-LOGICAL-c357t-2bb01bfeeab65ee32ea3d85fd79d85297c6e9da8623de9b8ec8ed19f129418dd3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/0009308474900541$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3537,27901,27902,65306</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/4851335$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Persson, Nils-Ola</creatorcontrib><creatorcontrib>Lindblom, Göran</creatorcontrib><creatorcontrib>Lindman, Björn</creatorcontrib><creatorcontrib>Arvidson, Gösta</creatorcontrib><title>Deuteron and sodium—23 NMR studies of lecithin mesophases</title><title>Chemistry and physics of lipids</title><addtitle>Chem Phys Lipids</addtitle><description>The deuteron quadrupole splitting of lamellar mesophase samples containing lecithin and heavy water depends strongly on sample composition and temperature. Broadening effects due to cholesterol may arise from deuteron exchange between water and cholesterol. In samples composed of lecithin, cholesterol, alkali chloride and heavy water, or of lecithin, alkali cholate and heavy water, the degree of water orientation is lower with K
+ ions than with the other alkali ions.
23Na NMR experiments show K
+ ions to interact more strongly with the amphiphilic molecules than other alkali ions. A decrease in
23Na line width on cholesterol addition is ascribed to a partial release of sodium ions from the lamellae. The
23Na quadrupole splitting increases with increasing cholesterol content and this may be due to a reduced motional freedom of the polar end of the lecithin molecule.</description><subject>Binding Sites</subject><subject>Cesium</subject><subject>Cholesterol</subject><subject>Cholic Acids</subject><subject>Deuterium</subject><subject>Hydrogen-Ion Concentration</subject><subject>Kinetics</subject><subject>Lithium</subject><subject>Magnetic Resonance Spectroscopy</subject><subject>Molecular Conformation</subject><subject>Phosphatidylcholines</subject><subject>Potassium</subject><subject>Rubidium</subject><subject>Sodium</subject><subject>Sodium Isotopes</subject><subject>Temperature</subject><subject>Thermodynamics</subject><issn>0009-3084</issn><issn>1873-2941</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1974</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNp9kM1KxDAUhYMo4zj6BgpdiS6qSZO0CYIg4y-MCqLrkCa3TGTajEkruPMhfEKfxNYZXLo6XM6593I-hPYJPiGY5KcYY5lSLNhRwY4lxpylZAONiShomklGNtH4L7KNdmJ87UfMORmhEROcUMrH6OwSuhaCbxLd2CR667r6-_Mro8nD_VMS2846iImvkgUY185dk9QQ_XKuI8RdtFXpRYS9tU7Qy_XV8_Q2nT3e3E0vZqmhvGjTrCwxKSsAXeYcgGagqRW8soXsJZOFyUFaLfKMWpClACPAElmRoYSwlk7Q4eruMvi3DmKrahcNLBa6Ad9FJTJW0D7dB9kqaIKPMUCllsHVOnwogtXATA1A1ABEFUz9MlOkXztY3-_KGuzf0hpS75-vfOhLvjsIKhoHjQHrAphWWe_-f_ADMAt7ow</recordid><startdate>197407</startdate><enddate>197407</enddate><creator>Persson, Nils-Ola</creator><creator>Lindblom, Göran</creator><creator>Lindman, Björn</creator><creator>Arvidson, Gösta</creator><general>Elsevier Ireland Ltd</general><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>197407</creationdate><title>Deuteron and sodium—23 NMR studies of lecithin mesophases</title><author>Persson, Nils-Ola ; Lindblom, Göran ; Lindman, Björn ; Arvidson, Gösta</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c357t-2bb01bfeeab65ee32ea3d85fd79d85297c6e9da8623de9b8ec8ed19f129418dd3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1974</creationdate><topic>Binding Sites</topic><topic>Cesium</topic><topic>Cholesterol</topic><topic>Cholic Acids</topic><topic>Deuterium</topic><topic>Hydrogen-Ion Concentration</topic><topic>Kinetics</topic><topic>Lithium</topic><topic>Magnetic Resonance Spectroscopy</topic><topic>Molecular Conformation</topic><topic>Phosphatidylcholines</topic><topic>Potassium</topic><topic>Rubidium</topic><topic>Sodium</topic><topic>Sodium Isotopes</topic><topic>Temperature</topic><topic>Thermodynamics</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Persson, Nils-Ola</creatorcontrib><creatorcontrib>Lindblom, Göran</creatorcontrib><creatorcontrib>Lindman, Björn</creatorcontrib><creatorcontrib>Arvidson, Gösta</creatorcontrib><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>Chemistry and physics of lipids</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Persson, Nils-Ola</au><au>Lindblom, Göran</au><au>Lindman, Björn</au><au>Arvidson, Gösta</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Deuteron and sodium—23 NMR studies of lecithin mesophases</atitle><jtitle>Chemistry and physics of lipids</jtitle><addtitle>Chem Phys Lipids</addtitle><date>1974-07</date><risdate>1974</risdate><volume>12</volume><issue>4</issue><spage>261</spage><epage>270</epage><pages>261-270</pages><issn>0009-3084</issn><eissn>1873-2941</eissn><abstract>The deuteron quadrupole splitting of lamellar mesophase samples containing lecithin and heavy water depends strongly on sample composition and temperature. Broadening effects due to cholesterol may arise from deuteron exchange between water and cholesterol. In samples composed of lecithin, cholesterol, alkali chloride and heavy water, or of lecithin, alkali cholate and heavy water, the degree of water orientation is lower with K
+ ions than with the other alkali ions.
23Na NMR experiments show K
+ ions to interact more strongly with the amphiphilic molecules than other alkali ions. A decrease in
23Na line width on cholesterol addition is ascribed to a partial release of sodium ions from the lamellae. The
23Na quadrupole splitting increases with increasing cholesterol content and this may be due to a reduced motional freedom of the polar end of the lecithin molecule.</abstract><cop>Ireland</cop><pub>Elsevier Ireland Ltd</pub><pmid>4851335</pmid><doi>10.1016/0009-3084(74)90054-1</doi><tpages>10</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0009-3084 |
| ispartof | Chemistry and physics of lipids, 1974-07, Vol.12 (4), p.261-270 |
| issn | 0009-3084 1873-2941 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_82473129 |
| source | MEDLINE; Elsevier ScienceDirect Journals |
| subjects | Binding Sites Cesium Cholesterol Cholic Acids Deuterium Hydrogen-Ion Concentration Kinetics Lithium Magnetic Resonance Spectroscopy Molecular Conformation Phosphatidylcholines Potassium Rubidium Sodium Sodium Isotopes Temperature Thermodynamics |
| title | Deuteron and sodium—23 NMR studies of lecithin mesophases |
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