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http://dspace.mediu.edu.my:8181/xmlui/handle/10261/4154Full metadata record
| DC Field | Value | Language |
|---|---|---|
| dc.creator | Sánchez-Cortés, Santiago | - |
| dc.creator | Leyton, P. | - |
| dc.creator | Campos-Vallette, M. | - |
| dc.creator | García-Ramos, José Vicente | - |
| dc.date | 2008-05-12T11:10:28Z | - |
| dc.date | 2008-05-12T11:10:28Z | - |
| dc.date | 2007 | - |
| dc.date.accessioned | 2017-01-31T01:14:26Z | - |
| dc.date.available | 2017-01-31T01:14:26Z | - |
| dc.identifier | Optica Pura y Aplicada 40 (2) 227-233 (2007) | - |
| dc.identifier | 0030-3917 | - |
| dc.identifier | http://hdl.handle.net/10261/4154 | - |
| dc.identifier.uri | http://dspace.mediu.edu.my:8181/xmlui/handle/10261/4154 | - |
| dc.description | [ES]Se han detectado trazas de hidrocarburos aromaticos policiclicos (PAHs) por espectroscopia SERS. Para conseguir este fin, se han desarrollado nuevos sustratos SERS formados por nanoparticulas de plata, tanto en suspension como inmovilizadas sobre vidrio. Estas nanoparticulas se cubrieron de moleculas de calix[4]arenos autoensambladas. Entre las moleculas de calixarenos ensayadas, el 25,27-dicarboethoxy-26,28-dihydroxy-p-tert-butylcalix[4]areno presenta una mayor selectividad analitica hacia los PAHs formados por cuatro anillos bencenicos, principalmente el pireno. El mecanismo de la interaccion entre el calixareno y el PAH parece tener lugar a traves de un empaquetamiento ƒÎ . ƒÎ que conduce a una transferencia de carga entre el complejo y la superficie metalica. Esta interccion puede inducir tambien cambios en la carga superficial de las nanoparticulas metalicas | - |
| dc.description | [EN]Polycyclic Aromatic Hydrocarbons (PAHs) were detected at trace concentrations. In order to accomplish that, new SERS substrates were developed based on silver nanoparticles, both in suspension and immobilized in glass. These nanoparticles were covered by self-assembled calix[4]arene molecules. Among the assayed calixarene molecules, the 25,27-dicarboethoxy- 26,28-dihydroxy-p-tert-butylcalix[4]arene shows a higher analytical selectivity towards PAHs integrated by four benzene rings, mainly pyrene. The interaction mechanism between the calixarene and PAHs seems to take place through a ð–ð stacking leading to a charge-transfer between the complex and the metal surface. This interaction seems to also induce changes in the surface charge of the metallic particles | - |
| dc.description | Este trabajo ha sido financiado parcialmente por el MEC (Proy.: FIS2004-00108), la Comunidad de Madrid (Proy.: MICROSERES; S-0505/TIC/0191) y el Acuerdo Bilateral CSIC-CONICYT (Proy.: 2005CL0002). Los autores expresan su agradecimiento a estos Organismos.p | - |
| dc.description | Peer reviewed | - |
| dc.format | 366978 bytes | - |
| dc.format | application/pdf | - |
| dc.language | spa | - |
| dc.publisher | Sociedad Española de Óptica | - |
| dc.rights | openAccess | - |
| dc.subject | SERS | - |
| dc.subject | Calixareno | - |
| dc.subject | Funcionalización de Superficies | - |
| dc.subject | Hidrocarburos Policíclicos Aromáticos | - |
| dc.subject | Calixarene | - |
| dc.subject | Surface Functionalization | - |
| dc.subject | PAHs | - |
| dc.title | Detección de PAHs mediante espectroscopía SERS sobre superficies metálicas funcionalizadas con calixarenos | - |
| dc.title | Detection of PAHs on calixarene-functionalized metal surfaces by means of SERS spectroscopy | - |
| dc.type | Artículo | - |
| Appears in Collections: | Digital Csic | |
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