A General Method for Solvent Exchange of Plasmonic Nanoparticles and Self-Assembly into SERS-Active Monolayers

We present a general route for the transfer of Au and Ag nanoparticles of different shapes and sizes, from water into various organic solvents. The experimental conditions for each type of nanoparticles were optimized by using a combination of thiolated poly(ethylene glycol) and a hydrophobic cappin...

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Veröffentlicht in:Langmuir : the ACS journal of surfaces and colloids. - 1992. - 31(2015), 33 vom: 25. Aug., Seite 9205-13
1. Verfasser: Serrano-Montes, Ana B (VerfasserIn)
Weitere Verfasser: Jimenez de Aberasturi, Dorleta, Langer, Judith, Giner-Casares, Juan J, Scarabelli, Leonardo, Herrero, Ada, Liz-Marzán, Luis M
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2015
Zugriff auf das übergeordnete Werk:Langmuir : the ACS journal of surfaces and colloids
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Silver 3M4G523W1G Polyethylene Glycols 3WJQ0SDW1A Gold 7440-57-5 polyethylene glycol 1000 U076Q6Q621
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520 |a We present a general route for the transfer of Au and Ag nanoparticles of different shapes and sizes, from water into various organic solvents. The experimental conditions for each type of nanoparticles were optimized by using a combination of thiolated poly(ethylene glycol) and a hydrophobic capping agent, such as dodecanethiol. The functionalized nanoparticles were readily transferred into organic dispersions with long-term stability (months). Such organic dispersions efficiently spread out on water, leading to self-assembly at the air/liquid interface into extended nanoparticle arrays which could in turn be transferred onto solid substrates. The dense close packing in the obtained nanoparticle monolayers results in extensive plasmon coupling, rendering them efficient substrates for surface-enhanced Raman scattering spectroscopy 
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700 1 |a Jimenez de Aberasturi, Dorleta  |e verfasserin  |4 aut 
700 1 |a Langer, Judith  |e verfasserin  |4 aut 
700 1 |a Giner-Casares, Juan J  |e verfasserin  |4 aut 
700 1 |a Scarabelli, Leonardo  |e verfasserin  |4 aut 
700 1 |a Herrero, Ada  |e verfasserin  |4 aut 
700 1 |a Liz-Marzán, Luis M  |e verfasserin  |4 aut 
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