Polyaniline Nanowires on Si Surfaces Fabricated with DNA Templates
It is essential to put individual, free-standing nanowires onto insulating substrates and integrate them to useful devices. Here we report a strategy for fabrication of conducting polymer nanowires on thermally oxidized Si surfaces by use of DNA as templates. The direct use of stretched and immobili...
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| Veröffentlicht in: | Journal of the American Chemical Society 2004-06, Vol.126 (22), p.7097-7101 |
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| container_issue | 22 |
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| container_title | Journal of the American Chemical Society |
| container_volume | 126 |
| creator | Ma, Yufeng Zhang, Jianming Zhang, Guojin He, Huixin |
| description | It is essential to put individual, free-standing nanowires onto insulating substrates and integrate them to useful devices. Here we report a strategy for fabrication of conducting polymer nanowires on thermally oxidized Si surfaces by use of DNA as templates. The direct use of stretched and immobilized DNA strands as templates avoids the agglomeration of DNA caused by shielding of charges on DNA when polyaniline/DNA complexes formed in solution. Most importantly, the oriented DNA strands immobilized on the Si surface predetermine the position and the orientation of the nanowires. The approach described here is the first step toward uniting the programmable-assembly ability of DNA with the unique electronic properties of conducting polymers for high-density functional nanodevices. The conductivity of the nanowires is very sensitive to the proton doping−undoping process, suggesting that the nanowires hold great promise for sensitive chemical sensor applications. |
| doi_str_mv | 10.1021/ja039621t |
| format | Article |
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Here we report a strategy for fabrication of conducting polymer nanowires on thermally oxidized Si surfaces by use of DNA as templates. The direct use of stretched and immobilized DNA strands as templates avoids the agglomeration of DNA caused by shielding of charges on DNA when polyaniline/DNA complexes formed in solution. Most importantly, the oriented DNA strands immobilized on the Si surface predetermine the position and the orientation of the nanowires. The approach described here is the first step toward uniting the programmable-assembly ability of DNA with the unique electronic properties of conducting polymers for high-density functional nanodevices. 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Am. Chem. Soc</addtitle><description>It is essential to put individual, free-standing nanowires onto insulating substrates and integrate them to useful devices. Here we report a strategy for fabrication of conducting polymer nanowires on thermally oxidized Si surfaces by use of DNA as templates. The direct use of stretched and immobilized DNA strands as templates avoids the agglomeration of DNA caused by shielding of charges on DNA when polyaniline/DNA complexes formed in solution. Most importantly, the oriented DNA strands immobilized on the Si surface predetermine the position and the orientation of the nanowires. The approach described here is the first step toward uniting the programmable-assembly ability of DNA with the unique electronic properties of conducting polymers for high-density functional nanodevices. The conductivity of the nanowires is very sensitive to the proton doping−undoping process, suggesting that the nanowires hold great promise for sensitive chemical sensor applications.</description><subject>Aniline Compounds - chemistry</subject><subject>Cross-disciplinary physics: materials science; rheology</subject><subject>DNA - chemistry</subject><subject>DNA - ultrastructure</subject><subject>Electronics</subject><subject>Exact sciences and technology</subject><subject>Hydrogen-Ion Concentration</subject><subject>Materials science</subject><subject>Microscopy, Atomic Force</subject><subject>Molecular Structure</subject><subject>Nanotechnology</subject><subject>New materials: theory, design, and fabrication</subject><subject>Other materials</subject><subject>Physics</subject><subject>Polymers - chemistry</subject><subject>Protons</subject><subject>Silicon - chemistry</subject><subject>Specific materials</subject><issn>0002-7863</issn><issn>1520-5126</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2004</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqF0EtLxDAQB_Agiq6Pg19AelHwUE3S5tGjur5AVmFXPIbZdIpZu-2atKjf3sgu6kHwFCbzm2H4E7LP6AmjnJ3OgGaF5KxbIwMmOE0F43KdDCilPFVaZltkO4RZLHOu2SbZYoKpXGs6IOcPbf0Bjatdg8kImvbNeQxJ2yRjl4x7X4GN5RVMvbPQYZm8ue45GY7OkgnOF3X8Crtko4I64N7q3SGPV5eTi5v07v769uLsLoU8V12qhcoQFFQFClna0hY4ZVaCKi1qyHIouSpznUlRcKSxz-IEgqQVlFpznu2Qo-XehW9fewydmbtgsa6hwbYPRrFCScnYv5AplYtM0wiPl9D6NgSPlVl4Nwf_YRg1X8ma72SjPVgt7adzLH_kKsoIDlcAgoW68tBYF345nSkhv65Ll86FDt-_--BfjFSRmMnD2DyNboacDqURP3vBBjNre9_EkP848BMEEpqk</recordid><startdate>20040609</startdate><enddate>20040609</enddate><creator>Ma, Yufeng</creator><creator>Zhang, Jianming</creator><creator>Zhang, Guojin</creator><creator>He, Huixin</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>7TM</scope><scope>7X8</scope></search><sort><creationdate>20040609</creationdate><title>Polyaniline Nanowires on Si Surfaces Fabricated with DNA Templates</title><author>Ma, Yufeng ; Zhang, Jianming ; Zhang, Guojin ; He, Huixin</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a447t-8573ea7af9e56dcdc9eb1c6a7dce8a34ad27d4836592e0cdc1857ea60fad88223</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2004</creationdate><topic>Aniline Compounds - chemistry</topic><topic>Cross-disciplinary physics: materials science; rheology</topic><topic>DNA - chemistry</topic><topic>DNA - ultrastructure</topic><topic>Electronics</topic><topic>Exact sciences and technology</topic><topic>Hydrogen-Ion Concentration</topic><topic>Materials science</topic><topic>Microscopy, Atomic Force</topic><topic>Molecular Structure</topic><topic>Nanotechnology</topic><topic>New materials: theory, design, and fabrication</topic><topic>Other materials</topic><topic>Physics</topic><topic>Polymers - chemistry</topic><topic>Protons</topic><topic>Silicon - chemistry</topic><topic>Specific materials</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Ma, Yufeng</creatorcontrib><creatorcontrib>Zhang, Jianming</creatorcontrib><creatorcontrib>Zhang, Guojin</creatorcontrib><creatorcontrib>He, Huixin</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>Nucleic Acids Abstracts</collection><collection>MEDLINE - Academic</collection><jtitle>Journal of the American Chemical Society</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Ma, Yufeng</au><au>Zhang, Jianming</au><au>Zhang, Guojin</au><au>He, Huixin</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Polyaniline Nanowires on Si Surfaces Fabricated with DNA Templates</atitle><jtitle>Journal of the American Chemical Society</jtitle><addtitle>J. Am. Chem. Soc</addtitle><date>2004-06-09</date><risdate>2004</risdate><volume>126</volume><issue>22</issue><spage>7097</spage><epage>7101</epage><pages>7097-7101</pages><issn>0002-7863</issn><eissn>1520-5126</eissn><coden>JACSAT</coden><abstract>It is essential to put individual, free-standing nanowires onto insulating substrates and integrate them to useful devices. Here we report a strategy for fabrication of conducting polymer nanowires on thermally oxidized Si surfaces by use of DNA as templates. The direct use of stretched and immobilized DNA strands as templates avoids the agglomeration of DNA caused by shielding of charges on DNA when polyaniline/DNA complexes formed in solution. Most importantly, the oriented DNA strands immobilized on the Si surface predetermine the position and the orientation of the nanowires. The approach described here is the first step toward uniting the programmable-assembly ability of DNA with the unique electronic properties of conducting polymers for high-density functional nanodevices. The conductivity of the nanowires is very sensitive to the proton doping−undoping process, suggesting that the nanowires hold great promise for sensitive chemical sensor applications.</abstract><cop>Washington, DC</cop><pub>American Chemical Society</pub><pmid>15174880</pmid><doi>10.1021/ja039621t</doi><tpages>5</tpages></addata></record> |
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| subjects | Aniline Compounds - chemistry Cross-disciplinary physics: materials science rheology DNA - chemistry DNA - ultrastructure Electronics Exact sciences and technology Hydrogen-Ion Concentration Materials science Microscopy, Atomic Force Molecular Structure Nanotechnology New materials: theory, design, and fabrication Other materials Physics Polymers - chemistry Protons Silicon - chemistry Specific materials |
| title | Polyaniline Nanowires on Si Surfaces Fabricated with DNA Templates |
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