Ultra-thin porous glass membranes—An innovative material for the immobilization of active species for optical chemosensors
In addition to polymers, porous glasses can be used for the immobilization of indicators, chromoionophores or enzymes. Advantages of these materials include, among others, the photochemical and thermal stability. Porous glass membranes (CPG) based on phase-separated alkali borosilicate glasses with...
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| Veröffentlicht in: | Talanta (Oxford) 2013-03, Vol.107, p.255-262 |
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| description | In addition to polymers, porous glasses can be used for the immobilization of indicators, chromoionophores or enzymes. Advantages of these materials include, among others, the photochemical and thermal stability. Porous glass membranes (CPG) based on phase-separated alkali borosilicate glasses with thicknesses of 250–300μm and dimensions of approximately 9–13mm² were used in this work. The average pore diameter was found to be between 12 and 112nm. Initially, the membrane permeability for water was determined. Furthermore, the absorption spectra for the water-soaked membranes were recorded optically. CPG membranes which are pH-sensitive were prepared based on the covalent immobilization of thymol blue and a derivative of styryl acridine. In each case, the absorption spectra of the immobilized indicators are shown. The t90-times vary between 4 and 20min and were determined for the thermodynamic equilibrium. The influence of the ionic strength on the characteristic curve is discussed and detailed results are given. After the storage time of about 900 days a pH-sensitivity for a CPG membrane styryl acridine derivative sample was still detectable.
► Thin porous glass membranes were tested as matrix for optical chemosensors. ► The membrane permeability for water was determined. ► The absorption spectra for the unmodified water-soaked membranes were recorded. ► Thymol blue and a derivative of styryl acridine were covalently immobilized. ► The corresponding absorption spectra during variation of the pH value are shown. |
| doi_str_mv | 10.1016/j.talanta.2012.12.038 |
| format | Article |
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► Thin porous glass membranes were tested as matrix for optical chemosensors. ► The membrane permeability for water was determined. ► The absorption spectra for the unmodified water-soaked membranes were recorded. ► Thymol blue and a derivative of styryl acridine were covalently immobilized. ► The corresponding absorption spectra during variation of the pH value are shown.</description><identifier>ISSN: 0039-9140</identifier><identifier>EISSN: 1873-3573</identifier><identifier>DOI: 10.1016/j.talanta.2012.12.038</identifier><identifier>PMID: 23598220</identifier><language>eng</language><publisher>Netherlands: Elsevier B.V</publisher><subject>Absorption spectra ; Acridines - chemistry ; Addition polymerization ; Coloring Agents - chemistry ; Derivatives ; Enzymes ; Glass ; Glass - chemistry ; Hydrogen-Ion Concentration ; Immobilization ; Indicator immobilization ; Indicators ; Membranes ; Membranes, Artificial ; Optical chemosensors ; Permeability ; Porosity ; Porous silica membranes (CPG) ; Silicates - chemistry ; Spectrophotometry ; Styryl acridine ; Thymol blue ; Thymolphthalein - analogs & derivatives ; Thymolphthalein - chemistry ; Water - chemistry</subject><ispartof>Talanta (Oxford), 2013-03, Vol.107, p.255-262</ispartof><rights>2013 Elsevier B.V.</rights><rights>Copyright © 2013 Elsevier B.V. All rights reserved.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c398t-789b39c705749690b4da7961615ecbdf80608dc916b64bd5fdf934be3340f5593</citedby><cites>FETCH-LOGICAL-c398t-789b39c705749690b4da7961615ecbdf80608dc916b64bd5fdf934be3340f5593</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.talanta.2012.12.038$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/23598220$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Müller, R.</creatorcontrib><creatorcontrib>Anders, N.</creatorcontrib><creatorcontrib>Titus, J.</creatorcontrib><creatorcontrib>Enke, D.</creatorcontrib><title>Ultra-thin porous glass membranes—An innovative material for the immobilization of active species for optical chemosensors</title><title>Talanta (Oxford)</title><addtitle>Talanta</addtitle><description>In addition to polymers, porous glasses can be used for the immobilization of indicators, chromoionophores or enzymes. Advantages of these materials include, among others, the photochemical and thermal stability. Porous glass membranes (CPG) based on phase-separated alkali borosilicate glasses with thicknesses of 250–300μm and dimensions of approximately 9–13mm² were used in this work. The average pore diameter was found to be between 12 and 112nm. Initially, the membrane permeability for water was determined. Furthermore, the absorption spectra for the water-soaked membranes were recorded optically. CPG membranes which are pH-sensitive were prepared based on the covalent immobilization of thymol blue and a derivative of styryl acridine. In each case, the absorption spectra of the immobilized indicators are shown. The t90-times vary between 4 and 20min and were determined for the thermodynamic equilibrium. The influence of the ionic strength on the characteristic curve is discussed and detailed results are given. After the storage time of about 900 days a pH-sensitivity for a CPG membrane styryl acridine derivative sample was still detectable.
► Thin porous glass membranes were tested as matrix for optical chemosensors. ► The membrane permeability for water was determined. ► The absorption spectra for the unmodified water-soaked membranes were recorded. ► Thymol blue and a derivative of styryl acridine were covalently immobilized. ► The corresponding absorption spectra during variation of the pH value are shown.</description><subject>Absorption spectra</subject><subject>Acridines - chemistry</subject><subject>Addition polymerization</subject><subject>Coloring Agents - chemistry</subject><subject>Derivatives</subject><subject>Enzymes</subject><subject>Glass</subject><subject>Glass - chemistry</subject><subject>Hydrogen-Ion Concentration</subject><subject>Immobilization</subject><subject>Indicator immobilization</subject><subject>Indicators</subject><subject>Membranes</subject><subject>Membranes, Artificial</subject><subject>Optical chemosensors</subject><subject>Permeability</subject><subject>Porosity</subject><subject>Porous silica membranes (CPG)</subject><subject>Silicates - chemistry</subject><subject>Spectrophotometry</subject><subject>Styryl acridine</subject><subject>Thymol blue</subject><subject>Thymolphthalein - analogs & derivatives</subject><subject>Thymolphthalein - chemistry</subject><subject>Water - chemistry</subject><issn>0039-9140</issn><issn>1873-3573</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2013</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqFkcuKFDEUhoMoTjv6CEqWbqo9qVOXZCXD4A0G3DjrkEqdstNUKmWSblBc-BA-oU9iZrp1O3Agi3x_Dvk_xl4K2AoQ3Zv9NpvZLNlsaxD1tgygfMQ2QvZYYdvjY7YBQFUp0cAFe5bSHgBqBHzKLmpslaxr2LCft3OOpso7t_A1xHBI_OtsUuKe_BDNQunPr99XC3fLEo4muyNxbzJFZ2Y-hcjzjrjzPgxudj_KfVh4mLix92RayTpK92BYs7MlZHfkQ6IlhZiesyeTmRO9OJ-X7Pb9uy_XH6ubzx8-XV_dVBaVzFUv1YDK9tD2jeoUDM1oetWJTrRkh3GS0IEcrRLd0DXD2E7jpLAZCLGBqW0VXrLXp3fXGL4dKGXtXbI0l_6o_FiLXmEtu07CwyiiACkVYkHbE2pjSCnSpNfovInftQB950jv9dmRvnOkyxRHJffqvOIweBr_p_5JKcDbE0Clk6OjqFOpcbE0ukg26zG4B1b8BZN8qDY</recordid><startdate>20130330</startdate><enddate>20130330</enddate><creator>Müller, R.</creator><creator>Anders, N.</creator><creator>Titus, J.</creator><creator>Enke, D.</creator><general>Elsevier B.V</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><scope>7QQ</scope><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope></search><sort><creationdate>20130330</creationdate><title>Ultra-thin porous glass membranes—An innovative material for the immobilization of active species for optical chemosensors</title><author>Müller, R. ; Anders, N. ; Titus, J. ; Enke, D.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c398t-789b39c705749690b4da7961615ecbdf80608dc916b64bd5fdf934be3340f5593</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2013</creationdate><topic>Absorption spectra</topic><topic>Acridines - chemistry</topic><topic>Addition polymerization</topic><topic>Coloring Agents - chemistry</topic><topic>Derivatives</topic><topic>Enzymes</topic><topic>Glass</topic><topic>Glass - chemistry</topic><topic>Hydrogen-Ion Concentration</topic><topic>Immobilization</topic><topic>Indicator immobilization</topic><topic>Indicators</topic><topic>Membranes</topic><topic>Membranes, Artificial</topic><topic>Optical chemosensors</topic><topic>Permeability</topic><topic>Porosity</topic><topic>Porous silica membranes (CPG)</topic><topic>Silicates - chemistry</topic><topic>Spectrophotometry</topic><topic>Styryl acridine</topic><topic>Thymol blue</topic><topic>Thymolphthalein - analogs & derivatives</topic><topic>Thymolphthalein - chemistry</topic><topic>Water - chemistry</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Müller, R.</creatorcontrib><creatorcontrib>Anders, N.</creatorcontrib><creatorcontrib>Titus, J.</creatorcontrib><creatorcontrib>Enke, D.</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><collection>Ceramic Abstracts</collection><collection>Engineered Materials Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>Talanta (Oxford)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Müller, R.</au><au>Anders, N.</au><au>Titus, J.</au><au>Enke, D.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Ultra-thin porous glass membranes—An innovative material for the immobilization of active species for optical chemosensors</atitle><jtitle>Talanta (Oxford)</jtitle><addtitle>Talanta</addtitle><date>2013-03-30</date><risdate>2013</risdate><volume>107</volume><spage>255</spage><epage>262</epage><pages>255-262</pages><issn>0039-9140</issn><eissn>1873-3573</eissn><abstract>In addition to polymers, porous glasses can be used for the immobilization of indicators, chromoionophores or enzymes. Advantages of these materials include, among others, the photochemical and thermal stability. Porous glass membranes (CPG) based on phase-separated alkali borosilicate glasses with thicknesses of 250–300μm and dimensions of approximately 9–13mm² were used in this work. The average pore diameter was found to be between 12 and 112nm. Initially, the membrane permeability for water was determined. Furthermore, the absorption spectra for the water-soaked membranes were recorded optically. CPG membranes which are pH-sensitive were prepared based on the covalent immobilization of thymol blue and a derivative of styryl acridine. In each case, the absorption spectra of the immobilized indicators are shown. The t90-times vary between 4 and 20min and were determined for the thermodynamic equilibrium. The influence of the ionic strength on the characteristic curve is discussed and detailed results are given. After the storage time of about 900 days a pH-sensitivity for a CPG membrane styryl acridine derivative sample was still detectable.
► Thin porous glass membranes were tested as matrix for optical chemosensors. ► The membrane permeability for water was determined. ► The absorption spectra for the unmodified water-soaked membranes were recorded. ► Thymol blue and a derivative of styryl acridine were covalently immobilized. ► The corresponding absorption spectra during variation of the pH value are shown.</abstract><cop>Netherlands</cop><pub>Elsevier B.V</pub><pmid>23598220</pmid><doi>10.1016/j.talanta.2012.12.038</doi><tpages>8</tpages></addata></record> |
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| subjects | Absorption spectra Acridines - chemistry Addition polymerization Coloring Agents - chemistry Derivatives Enzymes Glass Glass - chemistry Hydrogen-Ion Concentration Immobilization Indicator immobilization Indicators Membranes Membranes, Artificial Optical chemosensors Permeability Porosity Porous silica membranes (CPG) Silicates - chemistry Spectrophotometry Styryl acridine Thymol blue Thymolphthalein - analogs & derivatives Thymolphthalein - chemistry Water - chemistry |
| title | Ultra-thin porous glass membranes—An innovative material for the immobilization of active species for optical chemosensors |
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