NMR studies of molecular mobility and diffusion in porous systems
The uptake, partitioning, and release of ingredients such as water, oil, surfactant, and ions are important factors to understand and control in the design and manufacture of detergent and personal products. Although conventional pulse NMR (PNMR) spectroscopy continues to be used to analyse bulk mol...
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| Veröffentlicht in: | Magnetic resonance imaging 1994, Vol.12 (2), p.231-234 |
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| container_title | Magnetic resonance imaging |
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| creator | Smith, E.G. Rockliffe, J.W. McDonald, P.J. Lonergan, A. Halse, M.R. Leone, B. Strange, J.H. |
| description | The uptake, partitioning, and release of ingredients such as water, oil, surfactant, and ions are important factors to understand and control in the design and manufacture of detergent and personal products. Although conventional pulse NMR (PNMR) spectroscopy continues to be used to analyse bulk molecular mobility and phase composition, more recently MR imaging techniques have created unique opportunities for gaining spatial information about these processes in ways that are noninvasive and potentially quantitative. This paper describes the evaluation of MRI and associated PNMR techniques to study transport in three relevant cases: ion diffusion (e.g., fluoride) in concentrated dispersions, oil transport through powders, and water ingress into porous powders (zeolite). Results are presented to illustrate the potential of multiple pulse and gradient echo MRI methods for dealing with the short
T
2 scenarios that represent a common problem in quantitative imaging of water in solid-containing composites involving, for instance, zeolite, or silica. Pore-size characterisation results are also presented. |
| doi_str_mv | 10.1016/0730-725X(94)91524-5 |
| format | Article |
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T
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T
2 scenarios that represent a common problem in quantitative imaging of water in solid-containing composites involving, for instance, zeolite, or silica. Pore-size characterisation results are also presented.</description><subject>Condensed matter: electronic structure, electrical, magnetic, and optical properties</subject><subject>Diffusion</subject><subject>Exact sciences and technology</subject><subject>Imaging</subject><subject>Magnetic Resonance Imaging</subject><subject>Magnetic Resonance Spectroscopy</subject><subject>Magnetic resonances and relaxations in condensed matter, mössbauer effect</subject><subject>NMR</subject><subject>Nuclear magnetic resonance and relaxation</subject><subject>Oils</subject><subject>Ointments</subject><subject>Physics</subject><subject>Porosity</subject><subject>Porous media</subject><subject>Powders</subject><subject>Water</subject><subject>Zeolites</subject><issn>0730-725X</issn><issn>1873-5894</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1994</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNp9kEurFDEQRoMo1_HqP1DohYguWiudV2cjXC6-4KogCu5COqlApB9jqluYf2_GGWbpqgrqfMXHYewph9ccuH4DRkBrOvXzpZWvLFedbNU9tuO9Ea3qrbzPdhfkIXtE9AsAVCfUFbvquQEBZsduvnz-1tC6xYzULKmZlhHDNvpStyGPeT00fo5NzCltlJe5yXOzX8qyUUMHWnGix-xB8iPhk_O8Zj_ev_t--7G9-_rh0-3NXRtEr9fWqthZiDb1KQYDOhnUCgZufTJdjH2tHYNOyeJgZBAhejSD0MBjzXWdF9fsxenvviy_N6TVTZkCjqOfsdZxRkstuNEVlCcwlIWoYHL7kidfDo6DO5pzRy3uqMVZ6f6Zc6rGnp3_b8OE8RI6q6r35-e7p-DHVPwcMl0wCbwHCRV7e8KwuviTsTgKGeeAMRcMq4tL_n-PvwVeipQ</recordid><startdate>1994</startdate><enddate>1994</enddate><creator>Smith, E.G.</creator><creator>Rockliffe, J.W.</creator><creator>McDonald, P.J.</creator><creator>Lonergan, A.</creator><creator>Halse, M.R.</creator><creator>Leone, B.</creator><creator>Strange, J.H.</creator><general>Elsevier Inc</general><general>Elsevier Science</general><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>1994</creationdate><title>NMR studies of molecular mobility and diffusion in porous systems</title><author>Smith, E.G. ; Rockliffe, J.W. ; McDonald, P.J. ; Lonergan, A. ; Halse, M.R. ; Leone, B. ; Strange, J.H.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c386t-95d290d9f8fdc706f7e650b19af72dd8187dc6ff9eb74c3cdae7b3601dd2922a3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1994</creationdate><topic>Condensed matter: electronic structure, electrical, magnetic, and optical properties</topic><topic>Diffusion</topic><topic>Exact sciences and technology</topic><topic>Imaging</topic><topic>Magnetic Resonance Imaging</topic><topic>Magnetic Resonance Spectroscopy</topic><topic>Magnetic resonances and relaxations in condensed matter, mössbauer effect</topic><topic>NMR</topic><topic>Nuclear magnetic resonance and relaxation</topic><topic>Oils</topic><topic>Ointments</topic><topic>Physics</topic><topic>Porosity</topic><topic>Porous media</topic><topic>Powders</topic><topic>Water</topic><topic>Zeolites</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Smith, E.G.</creatorcontrib><creatorcontrib>Rockliffe, J.W.</creatorcontrib><creatorcontrib>McDonald, P.J.</creatorcontrib><creatorcontrib>Lonergan, A.</creatorcontrib><creatorcontrib>Halse, M.R.</creatorcontrib><creatorcontrib>Leone, B.</creatorcontrib><creatorcontrib>Strange, J.H.</creatorcontrib><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 imaging</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Smith, E.G.</au><au>Rockliffe, J.W.</au><au>McDonald, P.J.</au><au>Lonergan, A.</au><au>Halse, M.R.</au><au>Leone, B.</au><au>Strange, J.H.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>NMR studies of molecular mobility and diffusion in porous systems</atitle><jtitle>Magnetic resonance imaging</jtitle><addtitle>Magn Reson Imaging</addtitle><date>1994</date><risdate>1994</risdate><volume>12</volume><issue>2</issue><spage>231</spage><epage>234</epage><pages>231-234</pages><issn>0730-725X</issn><eissn>1873-5894</eissn><coden>MRIMDQ</coden><abstract>The uptake, partitioning, and release of ingredients such as water, oil, surfactant, and ions are important factors to understand and control in the design and manufacture of detergent and personal products. Although conventional pulse NMR (PNMR) spectroscopy continues to be used to analyse bulk molecular mobility and phase composition, more recently MR imaging techniques have created unique opportunities for gaining spatial information about these processes in ways that are noninvasive and potentially quantitative. This paper describes the evaluation of MRI and associated PNMR techniques to study transport in three relevant cases: ion diffusion (e.g., fluoride) in concentrated dispersions, oil transport through powders, and water ingress into porous powders (zeolite). Results are presented to illustrate the potential of multiple pulse and gradient echo MRI methods for dealing with the short
T
2 scenarios that represent a common problem in quantitative imaging of water in solid-containing composites involving, for instance, zeolite, or silica. Pore-size characterisation results are also presented.</abstract><cop>New York, NY</cop><pub>Elsevier Inc</pub><pmid>8170307</pmid><doi>10.1016/0730-725X(94)91524-5</doi><tpages>4</tpages></addata></record> |
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| ispartof | Magnetic resonance imaging, 1994, Vol.12 (2), p.231-234 |
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| language | eng |
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| subjects | Condensed matter: electronic structure, electrical, magnetic, and optical properties Diffusion Exact sciences and technology Imaging Magnetic Resonance Imaging Magnetic Resonance Spectroscopy Magnetic resonances and relaxations in condensed matter, mössbauer effect NMR Nuclear magnetic resonance and relaxation Oils Ointments Physics Porosity Porous media Powders Water Zeolites |
| title | NMR studies of molecular mobility and diffusion in porous systems |
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