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| DOI | 10.1186/S11671-016-1322-Z | ||||
| Año | 2016 | ||||
| Tipo | artículo de investigación |
Citas Totales
Autores Afiliación Chile
Instituciones Chile
% Participación
Internacional
Autores
Afiliación Extranjera
Instituciones
Extranjeras
Evidence of guest migration in alpha-cyclodextrin-octylamine (alpha-CD-OA) inclusion compound (IC) generated via plasmonic heating of gold nanoparticles (AuNPs) has been studied. In this report, we demonstrate local effects generated by laser-mediated irradiation of a sample of AuNPs covered with inclusion compounds on surface-derivatized glass under liquid conditions by atomic force microscopy (AFM). Functionalized AuNPs on the glass and covered by the ICs were monitored by recording images by AFM during 5 h of irradiation, and images showed that after irradiation, a drastic decrease in the height of the AuNPs occurred. The absorption spectrum of the irradiated sample showed a hypsochromic shift from 542 to 536 nm, evidence suggesting that much of the population of nanoparticles lost all of the parts of the overlay of ICs due to the plasmonic heat generated by the irradiation. Mass spectrometry matrix-assisted laser desorption/ionization-time-of-flight (MALDI-TOF) performed on a sample containing a collection of drops obtained from the surface of the functionalized glass provided evidence that the irradiation lead to disintegration of the ICs and therefore exit of the octylamine molecule (the guest) from the cyclodextrin cavity (the matrix).
| Ord. | Autor | Género | Institución - País |
|---|---|---|---|
| 1 | SILVA-GONZALEZ, NATALY ROXANA | Mujer |
Universidad de Chile - Chile
|
| 2 | MUNOZ-MUNOZ, CAMILA | Mujer |
Universidad de Chile - Chile
|
| 3 | DIAZ-JERALDO, JUAN CARLOS | Hombre |
Univ Barcelona - España
Universitat de Barcelona - España |
| 4 | Samitier, Josep | Hombre |
Inst Bioengn Catalonia IBEC - España
Ctr Invest Biomed Red Bioingn Biomat & Nanomed CI - España Univ Barcelona - España Instituto de Bioingeniería de Cataluña - España CIBER Bioingenieria, Biomateriales y Nanomedicina - España Universitat de Barcelona - España Centro de Investigación Biomédica en Red de Bioingeniería, Biomateriales y Nanomedicina - España |
| 5 | RADIC-FOSCINO, DEODATO | Hombre |
Universidad de Chile - Chile
|
| 6 | KOGAN-BOCIAN, MARCELO JAVIER | Hombre |
Universidad de Chile - Chile
Centro de Estudios Avanzados de Enfermedades Cronicas - Chile Advanced Center for Chronic Diseases (ACCDiS) - Chile Adv Ctr Chron Dis ACCDiS - Chile |
| 7 | JARA-VERGARA, PAUL SEBASTIAN | Hombre |
Universidad de Chile - Chile
|
| Fuente |
|---|
| FONDAP |
| Generalitat de Catalunya |
| Fondecyt Project |
| project OLIGOCODES from the Spanish Ministry of Economy and Competitiveness |
| Conicyt N.S. Gand, Beca de Pasantia Doctoral en el extranjero BECAS CHILE Convocatoria |
| Agradecimiento |
|---|
| The authors acknowledged the financial support provide by the Fondecyt Project 1130147, 1130425, and Fondap 15130011. Scholarships Conicyt N.S. Gand AT-24121127, Beca de Pasantia Doctoral en el extranjero BECAS CHILE Convocatoria 2011. Prof. Samitier was funded by the project OLIGOCODES from the Spanish Ministry of Economy and Competitiveness MAT2012-38573-C02. The Nanobioengineering group has support from the Generalitat de Catalunya (2014 SGR 1442). |