Characterization of Gas-Expanded Liquid-Deposited Gold Nanoparticle Films on Substrates of Varying Surface Energy
Dodecanethiol-stabilized gold nanoparticles (AuNPs) were deposited via a gas-expanded liquid (GXL) technique utilizing CO2-expanded hexane onto substrates of different surface energy. The different surface energies were achieved by coating silicon (100) substrates with various organic self-assembled...
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| Veröffentlicht in: | Langmuir 2011-01, Vol.27 (2), p.651-655 |
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| creator | Hurst, Kendall M Roberts, Christopher B Ashurst, W. Robert |
| description | Dodecanethiol-stabilized gold nanoparticles (AuNPs) were deposited via a gas-expanded liquid (GXL) technique utilizing CO2-expanded hexane onto substrates of different surface energy. The different surface energies were achieved by coating silicon (100) substrates with various organic self-assembled monolayers (SAMs). Following the deposition of AuNP films, the films were characterized to determine the effect of substrate surface energy on nanoparticle film deposition and growth. Interestingly, the critical surface tension of a given substrate does not directly describe nanoparticle film morphology. However, the results in this study indicate a shift between layer-by-layer and island film growth based on the critical surface tension of the capping ligand. Additionally, the fraction of surface area covered by the AuNP film decreases as the oleophobic nature of the surfaces increases. On the basis of this information, the potential exists to engineer nanoparticle films with desired morphologies and characteristics. |
| doi_str_mv | 10.1021/la1041629 |
| format | Article |
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Additionally, the fraction of surface area covered by the AuNP film decreases as the oleophobic nature of the surfaces increases. On the basis of this information, the potential exists to engineer nanoparticle films with desired morphologies and characteristics.</description><identifier>ISSN: 0743-7463</identifier><identifier>EISSN: 1520-5827</identifier><identifier>DOI: 10.1021/la1041629</identifier><identifier>PMID: 21174390</identifier><identifier>CODEN: LANGD5</identifier><language>eng</language><publisher>Washington, DC: American Chemical Society</publisher><subject>Chemistry ; Colloidal state and disperse state ; Exact sciences and technology ; Gases - chemistry ; General and physical chemistry ; Gold - chemistry ; Interfaces: Adsorption, Reactions, Films, Forces ; Membranes, Artificial ; Metal Nanoparticles - chemistry ; Molecular Structure ; Particle Size ; Physical and chemical studies. Granulometry. 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Robert</creatorcontrib><title>Characterization of Gas-Expanded Liquid-Deposited Gold Nanoparticle Films on Substrates of Varying Surface Energy</title><title>Langmuir</title><addtitle>Langmuir</addtitle><description>Dodecanethiol-stabilized gold nanoparticles (AuNPs) were deposited via a gas-expanded liquid (GXL) technique utilizing CO2-expanded hexane onto substrates of different surface energy. The different surface energies were achieved by coating silicon (100) substrates with various organic self-assembled monolayers (SAMs). Following the deposition of AuNP films, the films were characterized to determine the effect of substrate surface energy on nanoparticle film deposition and growth. Interestingly, the critical surface tension of a given substrate does not directly describe nanoparticle film morphology. However, the results in this study indicate a shift between layer-by-layer and island film growth based on the critical surface tension of the capping ligand. Additionally, the fraction of surface area covered by the AuNP film decreases as the oleophobic nature of the surfaces increases. On the basis of this information, the potential exists to engineer nanoparticle films with desired morphologies and characteristics.</description><subject>Chemistry</subject><subject>Colloidal state and disperse state</subject><subject>Exact sciences and technology</subject><subject>Gases - chemistry</subject><subject>General and physical chemistry</subject><subject>Gold - chemistry</subject><subject>Interfaces: Adsorption, Reactions, Films, Forces</subject><subject>Membranes, Artificial</subject><subject>Metal Nanoparticles - chemistry</subject><subject>Molecular Structure</subject><subject>Particle Size</subject><subject>Physical and chemical studies. Granulometry. Electrokinetic phenomena</subject><subject>Silicon - chemistry</subject><subject>Surface physical chemistry</subject><subject>Surface Properties</subject><subject>Thermodynamics</subject><issn>0743-7463</issn><issn>1520-5827</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2011</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNptkM1P20AQxVcVqATaQ_-ByheEOLjsp9c-ViEEpAgO_bha4_Us3cjxOru2RPrXd1FCuPQ00pvfvDd6hHxh9BujnN10wKhkBa8-kBlTnOaq5PqEzKiWIteyEGfkPMY1pbQSsvpIzjhjaVXRGdnO_0AAM2Jwf2F0vs-8zZYQ88XLAH2LbbZy28m1-S0OProxCUvftdkj9H6AMDrTYXbnuk3M0u2PqYljgBHjq81vCDvXPyc1WDCYLXoMz7tP5NRCF_HzYV6QX3eLn_P7fPW0fJh_X-UgpBzzhirUKDhY2gAtTWONbq3gbdEUrdCMWqF4qQQoCVxLqsrGlKoUDTeVkojiglztfYfgtxPGsd64aLDroEc_xboUWiqpeZHI6z1pgo8xoK2H4Dbp-ZrR-rXg-lhwYr8eXKdmg-2RfGs0AZcHAKKBzgbojYvvXEplTBbvHJhYr_0U-lTGfwL_ATDAjtc</recordid><startdate>20110118</startdate><enddate>20110118</enddate><creator>Hurst, Kendall M</creator><creator>Roberts, Christopher B</creator><creator>Ashurst, W. 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Robert</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a344t-b05e7e32af0ba08cbfc7df32d6b6d3710f352853a54a274058bc8583b2c954ee3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2011</creationdate><topic>Chemistry</topic><topic>Colloidal state and disperse state</topic><topic>Exact sciences and technology</topic><topic>Gases - chemistry</topic><topic>General and physical chemistry</topic><topic>Gold - chemistry</topic><topic>Interfaces: Adsorption, Reactions, Films, Forces</topic><topic>Membranes, Artificial</topic><topic>Metal Nanoparticles - chemistry</topic><topic>Molecular Structure</topic><topic>Particle Size</topic><topic>Physical and chemical studies. Granulometry. Electrokinetic phenomena</topic><topic>Silicon - chemistry</topic><topic>Surface physical chemistry</topic><topic>Surface Properties</topic><topic>Thermodynamics</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Hurst, Kendall M</creatorcontrib><creatorcontrib>Roberts, Christopher B</creatorcontrib><creatorcontrib>Ashurst, W. Robert</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>Langmuir</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Hurst, Kendall M</au><au>Roberts, Christopher B</au><au>Ashurst, W. Robert</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Characterization of Gas-Expanded Liquid-Deposited Gold Nanoparticle Films on Substrates of Varying Surface Energy</atitle><jtitle>Langmuir</jtitle><addtitle>Langmuir</addtitle><date>2011-01-18</date><risdate>2011</risdate><volume>27</volume><issue>2</issue><spage>651</spage><epage>655</epage><pages>651-655</pages><issn>0743-7463</issn><eissn>1520-5827</eissn><coden>LANGD5</coden><abstract>Dodecanethiol-stabilized gold nanoparticles (AuNPs) were deposited via a gas-expanded liquid (GXL) technique utilizing CO2-expanded hexane onto substrates of different surface energy. The different surface energies were achieved by coating silicon (100) substrates with various organic self-assembled monolayers (SAMs). Following the deposition of AuNP films, the films were characterized to determine the effect of substrate surface energy on nanoparticle film deposition and growth. Interestingly, the critical surface tension of a given substrate does not directly describe nanoparticle film morphology. However, the results in this study indicate a shift between layer-by-layer and island film growth based on the critical surface tension of the capping ligand. Additionally, the fraction of surface area covered by the AuNP film decreases as the oleophobic nature of the surfaces increases. On the basis of this information, the potential exists to engineer nanoparticle films with desired morphologies and characteristics.</abstract><cop>Washington, DC</cop><pub>American Chemical Society</pub><pmid>21174390</pmid><doi>10.1021/la1041629</doi><tpages>5</tpages></addata></record> |
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| subjects | Chemistry Colloidal state and disperse state Exact sciences and technology Gases - chemistry General and physical chemistry Gold - chemistry Interfaces: Adsorption, Reactions, Films, Forces Membranes, Artificial Metal Nanoparticles - chemistry Molecular Structure Particle Size Physical and chemical studies. Granulometry. Electrokinetic phenomena Silicon - chemistry Surface physical chemistry Surface Properties Thermodynamics |
| title | Characterization of Gas-Expanded Liquid-Deposited Gold Nanoparticle Films on Substrates of Varying Surface Energy |
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