Wet-Chemical Enzymatic Preparation and Characterization of Ultrathin Gold-Decorated Single Glass Nanopore
The conical glass nanopore was modified through layer-by-layer electrostatic deposition of a monolayer of glucose oxidase, and then an ultrathin gold film was formed in situ through enzyme-catalyzed reactions. The morphology and components of single glass nanopore before and after ultrathin Au depos...
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| Veröffentlicht in: | Analytical chemistry (Washington) 2014-05, Vol.86 (10), p.4815-4821 |
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| creator | He, Haili Xu, Xiaolong Jin, Yongdong |
| description | The conical glass nanopore was modified through layer-by-layer electrostatic deposition of a monolayer of glucose oxidase, and then an ultrathin gold film was formed in situ through enzyme-catalyzed reactions. The morphology and components of single glass nanopore before and after ultrathin Au deposition were characterized by transmission electron microscopy (TEM) and energy-dispersive X-ray (EDX) analysis, respectively. In particular, the quenching of the quantum dots fluorescence in the nanopore tip zone further illustrated that the gold nanofilm was successfully deposited on the inner wall of the single glass nanopore. The Au thin films make the glass nanopores more biologically friendly and allow the nanopores facile functionalization of the surface through the Au–S bonds. For instance, the ionic current rectification (ICR) properties of the gold-decorated glass nanopores could be switched readily at different pHs by introducing different thiol molecules. |
| doi_str_mv | 10.1021/ac404168s |
| format | Article |
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The morphology and components of single glass nanopore before and after ultrathin Au deposition were characterized by transmission electron microscopy (TEM) and energy-dispersive X-ray (EDX) analysis, respectively. In particular, the quenching of the quantum dots fluorescence in the nanopore tip zone further illustrated that the gold nanofilm was successfully deposited on the inner wall of the single glass nanopore. The Au thin films make the glass nanopores more biologically friendly and allow the nanopores facile functionalization of the surface through the Au–S bonds. 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Chem</addtitle><description>The conical glass nanopore was modified through layer-by-layer electrostatic deposition of a monolayer of glucose oxidase, and then an ultrathin gold film was formed in situ through enzyme-catalyzed reactions. The morphology and components of single glass nanopore before and after ultrathin Au deposition were characterized by transmission electron microscopy (TEM) and energy-dispersive X-ray (EDX) analysis, respectively. In particular, the quenching of the quantum dots fluorescence in the nanopore tip zone further illustrated that the gold nanofilm was successfully deposited on the inner wall of the single glass nanopore. The Au thin films make the glass nanopores more biologically friendly and allow the nanopores facile functionalization of the surface through the Au–S bonds. For instance, the ionic current rectification (ICR) properties of the gold-decorated glass nanopores could be switched readily at different pHs by introducing different thiol molecules.</description><subject>Analytical chemistry</subject><subject>Biocatalysts</subject><subject>Biochemistry</subject><subject>Deposition</subject><subject>Enzymes</subject><subject>Enzymes - chemistry</subject><subject>Enzymes, Immobilized - chemistry</subject><subject>Fluorescence</subject><subject>Glass</subject><subject>Glucose Oxidase - chemistry</subject><subject>Gold</subject><subject>Gold - chemistry</subject><subject>Microtechnology</subject><subject>Morphology</subject><subject>Nanomaterials</subject><subject>Nanopores</subject><subject>Nanostructure</subject><subject>Sulfhydryl Compounds - chemistry</subject><subject>Thin films</subject><subject>Transmission electron microscopy</subject><subject>Walls</subject><issn>0003-2700</issn><issn>1520-6882</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqF0c9LBCEUB3CJorYfh_6BECKow5TPcRz3GFttQVRQ0XFw9dlOzIybzh62vz5jK6IOnfTJx-9DHyG7wI6BcTjRRjABUsUVMoCCs0wqxVfJgDGWZ7xkbINsxvjCGAADuU42uChFoUoYkPoJ-2w0xbY2uqHn3dui1X1t6F3AmQ5p6zuqO0tH01SZHkP9tjz0jj42fRLTuqNj39jsDI1PNVp6X3fPDdJxo2OkN7rzMx9wm6w53UTc-Vy3yOPF-cPoMru-HV-NTq8zLQTvsxxzN0FTOF0qZU2uwDo-AXQTZzUYrazmTqAVjhk1RGf5sBgKK21RlGgc5FvkcJk7C_51jrGv2joabBrdoZ_HCuSQ5zLdKf6nBZdlLoHJRPd_0Rc_D116SFJ5-lcF8kMdLZUJPsaArpqFutVhUQGrPkZVfY8q2b3PxPmkRfstv2aTwMESaBN_dPsT9A4y95uG</recordid><startdate>20140520</startdate><enddate>20140520</enddate><creator>He, Haili</creator><creator>Xu, Xiaolong</creator><creator>Jin, Yongdong</creator><general>American Chemical Society</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>7QF</scope><scope>7QO</scope><scope>7QQ</scope><scope>7SC</scope><scope>7SE</scope><scope>7SP</scope><scope>7SR</scope><scope>7TA</scope><scope>7TB</scope><scope>7TM</scope><scope>7U5</scope><scope>7U7</scope><scope>7U9</scope><scope>8BQ</scope><scope>8FD</scope><scope>C1K</scope><scope>F28</scope><scope>FR3</scope><scope>H8D</scope><scope>H8G</scope><scope>H94</scope><scope>JG9</scope><scope>JQ2</scope><scope>KR7</scope><scope>L7M</scope><scope>L~C</scope><scope>L~D</scope><scope>P64</scope><scope>7X8</scope></search><sort><creationdate>20140520</creationdate><title>Wet-Chemical Enzymatic Preparation and Characterization of Ultrathin Gold-Decorated Single Glass Nanopore</title><author>He, Haili ; Xu, Xiaolong ; Jin, Yongdong</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a442t-3e3fbec5fa788dc381df2b1efbfda1ca8da2f4ed4f0c89efd29594d6d557ecf13</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2014</creationdate><topic>Analytical chemistry</topic><topic>Biocatalysts</topic><topic>Biochemistry</topic><topic>Deposition</topic><topic>Enzymes</topic><topic>Enzymes - chemistry</topic><topic>Enzymes, Immobilized - chemistry</topic><topic>Fluorescence</topic><topic>Glass</topic><topic>Glucose Oxidase - chemistry</topic><topic>Gold</topic><topic>Gold - chemistry</topic><topic>Microtechnology</topic><topic>Morphology</topic><topic>Nanomaterials</topic><topic>Nanopores</topic><topic>Nanostructure</topic><topic>Sulfhydryl Compounds - chemistry</topic><topic>Thin films</topic><topic>Transmission electron microscopy</topic><topic>Walls</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>He, Haili</creatorcontrib><creatorcontrib>Xu, Xiaolong</creatorcontrib><creatorcontrib>Jin, Yongdong</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>Aluminium Industry Abstracts</collection><collection>Biotechnology Research Abstracts</collection><collection>Ceramic Abstracts</collection><collection>Computer and Information Systems Abstracts</collection><collection>Corrosion Abstracts</collection><collection>Electronics & Communications Abstracts</collection><collection>Engineered Materials Abstracts</collection><collection>Materials Business File</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Nucleic Acids Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Toxicology Abstracts</collection><collection>Virology and AIDS Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ANTE: Abstracts in New Technology & Engineering</collection><collection>Engineering Research Database</collection><collection>Aerospace Database</collection><collection>Copper Technical Reference Library</collection><collection>AIDS and Cancer Research Abstracts</collection><collection>Materials Research Database</collection><collection>ProQuest Computer Science Collection</collection><collection>Civil Engineering Abstracts</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Computer and Information Systems Abstracts Academic</collection><collection>Computer and Information Systems Abstracts Professional</collection><collection>Biotechnology and BioEngineering Abstracts</collection><collection>MEDLINE - Academic</collection><jtitle>Analytical chemistry (Washington)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>He, Haili</au><au>Xu, Xiaolong</au><au>Jin, Yongdong</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Wet-Chemical Enzymatic Preparation and Characterization of Ultrathin Gold-Decorated Single Glass Nanopore</atitle><jtitle>Analytical chemistry (Washington)</jtitle><addtitle>Anal. Chem</addtitle><date>2014-05-20</date><risdate>2014</risdate><volume>86</volume><issue>10</issue><spage>4815</spage><epage>4821</epage><pages>4815-4821</pages><issn>0003-2700</issn><eissn>1520-6882</eissn><coden>ANCHAM</coden><abstract>The conical glass nanopore was modified through layer-by-layer electrostatic deposition of a monolayer of glucose oxidase, and then an ultrathin gold film was formed in situ through enzyme-catalyzed reactions. The morphology and components of single glass nanopore before and after ultrathin Au deposition were characterized by transmission electron microscopy (TEM) and energy-dispersive X-ray (EDX) analysis, respectively. In particular, the quenching of the quantum dots fluorescence in the nanopore tip zone further illustrated that the gold nanofilm was successfully deposited on the inner wall of the single glass nanopore. The Au thin films make the glass nanopores more biologically friendly and allow the nanopores facile functionalization of the surface through the Au–S bonds. For instance, the ionic current rectification (ICR) properties of the gold-decorated glass nanopores could be switched readily at different pHs by introducing different thiol molecules.</abstract><cop>United States</cop><pub>American Chemical Society</pub><pmid>24745871</pmid><doi>10.1021/ac404168s</doi><tpages>7</tpages></addata></record> |
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| subjects | Analytical chemistry Biocatalysts Biochemistry Deposition Enzymes Enzymes - chemistry Enzymes, Immobilized - chemistry Fluorescence Glass Glucose Oxidase - chemistry Gold Gold - chemistry Microtechnology Morphology Nanomaterials Nanopores Nanostructure Sulfhydryl Compounds - chemistry Thin films Transmission electron microscopy Walls |
| title | Wet-Chemical Enzymatic Preparation and Characterization of Ultrathin Gold-Decorated Single Glass Nanopore |
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