Stability of Self-Assembled Monolayers on Titanium and Gold
Methyl- and hydroxyl-terminated phosphonic acid self-assembled monolayers (SAMs) were coated on Ti from aqueous solution. Dodecyl phosphate and dodecyltrichlorosilane SAMs were also coated on Ti using solution-phase deposition. The stability of SAMs on Ti was investigated in Tris-buffered saline (TB...
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| Veröffentlicht in: | Langmuir 2008-07, Vol.24 (13), p.6774-6784 |
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| creator | Mani, Gopinath Johnson, Dave M Marton, Denes Dougherty, Victoria L Feldman, Marc D Patel, Devang Ayon, Arturo A Agrawal, C. Mauli |
| description | Methyl- and hydroxyl-terminated phosphonic acid self-assembled monolayers (SAMs) were coated on Ti from aqueous solution. Dodecyl phosphate and dodecyltrichlorosilane SAMs were also coated on Ti using solution-phase deposition. The stability of SAMs on Ti was investigated in Tris-buffered saline (TBS) at 37 °C using X-ray photoelectron spectroscopy, contact angle goniometry, and atomic force microscopy. For comparison purposes, a hydroxyl-terminated thiol SAM was coated on Au, and its stability was also investigated under similar conditions. In TBS, a significant proportion of phosphonic acid or phosphate molecules were desorbed from the Ti surface within 1 day, while the trichlorosilane SAM on Ti or thiol SAM on Au was stable for up to 7 days under similar conditions. The stability of hydroxyl-terminated phosphonic acid SAM coated Ti and thiol SAM coated Au was investigated in ambient air and ultraviolet (UV) light. In ambient air, the phosphonic acid SAM on Ti was stable for up to 14 days, while the thiol SAM on Au was not stable for 1 day. Under UV-radiation exposure, the alkyl chains of the phosphonic acid SAM were decomposed, leaving only the phosphonate groups on the Ti surface after 12 h. Under similar conditions, decomposition of alkyl chains of the thiol SAM was observed on the Au surface accompanied by oxidation of thiolates. |
| doi_str_mv | 10.1021/la8003646 |
| format | Article |
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Mauli</creator><creatorcontrib>Mani, Gopinath ; Johnson, Dave M ; Marton, Denes ; Dougherty, Victoria L ; Feldman, Marc D ; Patel, Devang ; Ayon, Arturo A ; Agrawal, C. Mauli</creatorcontrib><description>Methyl- and hydroxyl-terminated phosphonic acid self-assembled monolayers (SAMs) were coated on Ti from aqueous solution. Dodecyl phosphate and dodecyltrichlorosilane SAMs were also coated on Ti using solution-phase deposition. The stability of SAMs on Ti was investigated in Tris-buffered saline (TBS) at 37 °C using X-ray photoelectron spectroscopy, contact angle goniometry, and atomic force microscopy. For comparison purposes, a hydroxyl-terminated thiol SAM was coated on Au, and its stability was also investigated under similar conditions. In TBS, a significant proportion of phosphonic acid or phosphate molecules were desorbed from the Ti surface within 1 day, while the trichlorosilane SAM on Ti or thiol SAM on Au was stable for up to 7 days under similar conditions. The stability of hydroxyl-terminated phosphonic acid SAM coated Ti and thiol SAM coated Au was investigated in ambient air and ultraviolet (UV) light. In ambient air, the phosphonic acid SAM on Ti was stable for up to 14 days, while the thiol SAM on Au was not stable for 1 day. Under UV-radiation exposure, the alkyl chains of the phosphonic acid SAM were decomposed, leaving only the phosphonate groups on the Ti surface after 12 h. Under similar conditions, decomposition of alkyl chains of the thiol SAM was observed on the Au surface accompanied by oxidation of thiolates.</description><identifier>ISSN: 0743-7463</identifier><identifier>EISSN: 1520-5827</identifier><identifier>DOI: 10.1021/la8003646</identifier><identifier>PMID: 18512878</identifier><identifier>CODEN: LANGD5</identifier><language>eng</language><publisher>Washington, DC: American Chemical Society</publisher><subject>Biological Interfaces: Biocolloids, Biomolecular and Biomimetic Materials ; Buffers ; Chemistry ; Colloidal state and disperse state ; Exact sciences and technology ; General and physical chemistry ; Gold - chemistry ; Microscopy, Atomic Force ; Spectrum Analysis ; Surface physical chemistry ; Titanium - chemistry ; Water - chemistry</subject><ispartof>Langmuir, 2008-07, Vol.24 (13), p.6774-6784</ispartof><rights>Copyright © 2008 American Chemical Society</rights><rights>2008 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a447t-4c01e8dc795734e667bbbbe7554c9eef7db2e91639202f733540e9803256623a3</citedby><cites>FETCH-LOGICAL-a447t-4c01e8dc795734e667bbbbe7554c9eef7db2e91639202f733540e9803256623a3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://pubs.acs.org/doi/pdf/10.1021/la8003646$$EPDF$$P50$$Gacs$$H</linktopdf><linktohtml>$$Uhttps://pubs.acs.org/doi/10.1021/la8003646$$EHTML$$P50$$Gacs$$H</linktohtml><link.rule.ids>314,776,780,2752,27053,27901,27902,56713,56763</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=20463007$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/18512878$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Mani, Gopinath</creatorcontrib><creatorcontrib>Johnson, Dave M</creatorcontrib><creatorcontrib>Marton, Denes</creatorcontrib><creatorcontrib>Dougherty, Victoria L</creatorcontrib><creatorcontrib>Feldman, Marc D</creatorcontrib><creatorcontrib>Patel, Devang</creatorcontrib><creatorcontrib>Ayon, Arturo A</creatorcontrib><creatorcontrib>Agrawal, C. Mauli</creatorcontrib><title>Stability of Self-Assembled Monolayers on Titanium and Gold</title><title>Langmuir</title><addtitle>Langmuir</addtitle><description>Methyl- and hydroxyl-terminated phosphonic acid self-assembled monolayers (SAMs) were coated on Ti from aqueous solution. Dodecyl phosphate and dodecyltrichlorosilane SAMs were also coated on Ti using solution-phase deposition. The stability of SAMs on Ti was investigated in Tris-buffered saline (TBS) at 37 °C using X-ray photoelectron spectroscopy, contact angle goniometry, and atomic force microscopy. For comparison purposes, a hydroxyl-terminated thiol SAM was coated on Au, and its stability was also investigated under similar conditions. In TBS, a significant proportion of phosphonic acid or phosphate molecules were desorbed from the Ti surface within 1 day, while the trichlorosilane SAM on Ti or thiol SAM on Au was stable for up to 7 days under similar conditions. The stability of hydroxyl-terminated phosphonic acid SAM coated Ti and thiol SAM coated Au was investigated in ambient air and ultraviolet (UV) light. In ambient air, the phosphonic acid SAM on Ti was stable for up to 14 days, while the thiol SAM on Au was not stable for 1 day. Under UV-radiation exposure, the alkyl chains of the phosphonic acid SAM were decomposed, leaving only the phosphonate groups on the Ti surface after 12 h. Under similar conditions, decomposition of alkyl chains of the thiol SAM was observed on the Au surface accompanied by oxidation of thiolates.</description><subject>Biological Interfaces: Biocolloids, Biomolecular and Biomimetic Materials</subject><subject>Buffers</subject><subject>Chemistry</subject><subject>Colloidal state and disperse state</subject><subject>Exact sciences and technology</subject><subject>General and physical chemistry</subject><subject>Gold - chemistry</subject><subject>Microscopy, Atomic Force</subject><subject>Spectrum Analysis</subject><subject>Surface physical chemistry</subject><subject>Titanium - chemistry</subject><subject>Water - chemistry</subject><issn>0743-7463</issn><issn>1520-5827</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2008</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNpt0E1Lw0AQBuBFFK0fB_-A5KLgITr7neBJilZBUWgF8bJskglEN1ndTcD-eyMt9eJc5jAPL8NLyDGFCwqMXjqbAXAl1BaZUMkglRnT22QCWvBUC8X3yH6M7wCQc5Hvkj2aScoynU3I1by3ReOafpn4Opmjq9PrGLEtHFbJo--8s0sMMfFdsmh62zVDm9iuSmbeVYdkp7Yu4tF6H5CX25vF9C59eJrdT68fUiuE7lNRAsWsKnUuNReolC7GQS2lKHPEWlcFw5wqnjNgteZcCsA8A86kUoxbfkDOVrmfwX8NGHvTNrFE52yHfohG5UwKRvkIz1ewDD7GgLX5DE1rw9JQML9NmU1Toz1Zhw5Fi9WfXFczgtM1sLG0rg62K5u4cQzGEAA9unTlmtjj9-Zuw4dRmmtpFs9zM5-96mc5ZebtL9eW0bz7IXRjd_88-AMb0oi9</recordid><startdate>20080701</startdate><enddate>20080701</enddate><creator>Mani, Gopinath</creator><creator>Johnson, Dave M</creator><creator>Marton, Denes</creator><creator>Dougherty, Victoria L</creator><creator>Feldman, Marc D</creator><creator>Patel, Devang</creator><creator>Ayon, Arturo A</creator><creator>Agrawal, C. Mauli</creator><general>American Chemical Society</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>20080701</creationdate><title>Stability of Self-Assembled Monolayers on Titanium and Gold</title><author>Mani, Gopinath ; Johnson, Dave M ; Marton, Denes ; Dougherty, Victoria L ; Feldman, Marc D ; Patel, Devang ; Ayon, Arturo A ; Agrawal, C. Mauli</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a447t-4c01e8dc795734e667bbbbe7554c9eef7db2e91639202f733540e9803256623a3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2008</creationdate><topic>Biological Interfaces: Biocolloids, Biomolecular and Biomimetic Materials</topic><topic>Buffers</topic><topic>Chemistry</topic><topic>Colloidal state and disperse state</topic><topic>Exact sciences and technology</topic><topic>General and physical chemistry</topic><topic>Gold - chemistry</topic><topic>Microscopy, Atomic Force</topic><topic>Spectrum Analysis</topic><topic>Surface physical chemistry</topic><topic>Titanium - chemistry</topic><topic>Water - chemistry</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Mani, Gopinath</creatorcontrib><creatorcontrib>Johnson, Dave M</creatorcontrib><creatorcontrib>Marton, Denes</creatorcontrib><creatorcontrib>Dougherty, Victoria L</creatorcontrib><creatorcontrib>Feldman, Marc D</creatorcontrib><creatorcontrib>Patel, Devang</creatorcontrib><creatorcontrib>Ayon, Arturo A</creatorcontrib><creatorcontrib>Agrawal, C. Mauli</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>Langmuir</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Mani, Gopinath</au><au>Johnson, Dave M</au><au>Marton, Denes</au><au>Dougherty, Victoria L</au><au>Feldman, Marc D</au><au>Patel, Devang</au><au>Ayon, Arturo A</au><au>Agrawal, C. Mauli</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Stability of Self-Assembled Monolayers on Titanium and Gold</atitle><jtitle>Langmuir</jtitle><addtitle>Langmuir</addtitle><date>2008-07-01</date><risdate>2008</risdate><volume>24</volume><issue>13</issue><spage>6774</spage><epage>6784</epage><pages>6774-6784</pages><issn>0743-7463</issn><eissn>1520-5827</eissn><coden>LANGD5</coden><abstract>Methyl- and hydroxyl-terminated phosphonic acid self-assembled monolayers (SAMs) were coated on Ti from aqueous solution. Dodecyl phosphate and dodecyltrichlorosilane SAMs were also coated on Ti using solution-phase deposition. The stability of SAMs on Ti was investigated in Tris-buffered saline (TBS) at 37 °C using X-ray photoelectron spectroscopy, contact angle goniometry, and atomic force microscopy. For comparison purposes, a hydroxyl-terminated thiol SAM was coated on Au, and its stability was also investigated under similar conditions. In TBS, a significant proportion of phosphonic acid or phosphate molecules were desorbed from the Ti surface within 1 day, while the trichlorosilane SAM on Ti or thiol SAM on Au was stable for up to 7 days under similar conditions. The stability of hydroxyl-terminated phosphonic acid SAM coated Ti and thiol SAM coated Au was investigated in ambient air and ultraviolet (UV) light. In ambient air, the phosphonic acid SAM on Ti was stable for up to 14 days, while the thiol SAM on Au was not stable for 1 day. Under UV-radiation exposure, the alkyl chains of the phosphonic acid SAM were decomposed, leaving only the phosphonate groups on the Ti surface after 12 h. Under similar conditions, decomposition of alkyl chains of the thiol SAM was observed on the Au surface accompanied by oxidation of thiolates.</abstract><cop>Washington, DC</cop><pub>American Chemical Society</pub><pmid>18512878</pmid><doi>10.1021/la8003646</doi><tpages>11</tpages></addata></record> |
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| subjects | Biological Interfaces: Biocolloids, Biomolecular and Biomimetic Materials Buffers Chemistry Colloidal state and disperse state Exact sciences and technology General and physical chemistry Gold - chemistry Microscopy, Atomic Force Spectrum Analysis Surface physical chemistry Titanium - chemistry Water - chemistry |
| title | Stability of Self-Assembled Monolayers on Titanium and Gold |
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