Electrochemical and Spectroscopic Characterization of Organic Compound Uptake in Silica Core−Shell Nanocapsules
| Autor: | Aleksa V. Jovanovic, Evan Schwartz, Omar Ishaq, Jorge L. Chavez, Robert Pansu, Thomas J. Joncheray, Randolph S. Duran, Pierre Audebert |
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| Přispěvatelé: | Department of Chemistry and Center for Macromolecular Science and Engineering, University of Florida [Gainesville] (UF), Laboratoire de Photophysique et Photochimie Supramoléculaires et Macromoléculaires (PPSM), École normale supérieure - Cachan (ENS Cachan)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Institut d'Alembert (IDA), École normale supérieure - Cachan (ENS Cachan)-Centre National de la Recherche Scientifique (CNRS), University of Florida [Gainesville], Laboratoire de Photophysique et Photochimie Supramoléculaires et Macromoléculaires ( PPSM ), École normale supérieure - Cachan ( ENS Cachan ) -Centre National de la Recherche Scientifique ( CNRS ), Institut d'Alembert ( IDA ), Centre National de la Recherche Scientifique ( CNRS ) -École normale supérieure - Cachan ( ENS Cachan ) |
| Rok vydání: | 2006 |
| Předmět: |
critical micelle concentration
Kinetics probe 02 engineering and technology 010402 general chemistry 01 natural sciences Organic compound surfactants Nanocapsules dendrimers Dendrimer Spectrophotometry Electrochemistry medicine Organic chemistry General Materials Science Spectroscopy chemistry.chemical_classification medicine.diagnostic_test ferrocene [CHIM.MATE]Chemical Sciences/Material chemistry Surfaces and Interfaces self-diffusion assemblies 021001 nanoscience & nanotechnology Condensed Matter Physics cyclic voltammetry 0104 chemical sciences [CHIM.THEO]Chemical Sciences/Theoretical and/or physical chemistry Partition coefficient solid lipid nanoparticles Chemical engineering chemistry [ CHIM.MATE ] Chemical Sciences/Material chemistry [ CHIM.THEO ] Chemical Sciences/Theoretical and/or physical chemistry partition-coefficient Absorption (chemistry) Cyclic voltammetry 0210 nano-technology |
| Zdroj: | Langmuir Langmuir, American Chemical Society, 2006, 22 (21), pp.8684-8689. ⟨10.1021/la061086y⟩ Langmuir, American Chemical Society, 2006, 22 (21), pp.8684-8689. 〈10.1021/la061086y〉 |
| ISSN: | 1520-5827 0743-7463 |
| DOI: | 10.1021/la061086y |
| Popis: | International audience; Oil-filled silica nanocapsules consisting of a hydrophobic liquid core and a silicate shell have been shown to efficiently extract hydrophobic compounds from aqueous media. With a view toward quantifying the selectivity of these systems, a series of electrochemical and spectroscopic measurements was performed. Uptake and kinetics experiments were carried out through electrochemical measurements by using solutions of lipophilic electroactive molecules of different sizes and with different affinities for silica. Other solutions with fluorescent probes were used for spectrophotometry measurements. In this work we report the environment where the lipophilic compounds studied end up after absorption and the kinetics of their uptake by the oil-filled silica nanocapsules with different shell thicknesses. |
| Databáze: | OpenAIRE |
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