Morphology-Dependent Energy Transfer Dynamics in Fluorene-Based Amphiphile Nanoparticles
| Autor: | Adrien Kaeser, Albertus P. H. J. Schenning, Amy L. Stevens, Laura M. Herz |
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| Přispěvatelé: | Stimuli-responsive Funct. Materials & Dev. |
| Rok vydání: | 2012 |
| Předmět: |
Models
Molecular Morphology (linguistics) Materials science Photoluminescence General Physics and Astronomy Nanoparticle Nanotechnology Fluorene Electron Transport chemistry.chemical_compound Materials Testing Amphiphile Computer Simulation General Materials Science Particle Size Fluorenes Dynamics (mechanics) General Engineering Acceptor Energy Transfer Models Chemical chemistry Chemical engineering Nanoparticles Self-assembly Hydrophobic and Hydrophilic Interactions |
| Zdroj: | ACS Nano, 6(6), 4777-4787. American Chemical Society |
| ISSN: | 1936-086X 1936-0851 |
| Popis: | Nanoparticles are interesting systems to study because of their large range of potential uses in biological imaging and sensing. We investigated molecular nanoparticles formed by fast injection of a small volume of molecularly dissolved fluorene-derivative amphiphilic molecules into a polar solvent, which resulted in solid spherical particles of ∼80 nm diameter with high stability. Energy transfer studies were carried out on two-component nanoparticles that contained mixtures of donor and acceptor amphiphiles of various fractions. We conducted time-resolved photoluminescence measurements on the two-component nanoparticles in order to determine whether the fundamental donor-acceptor interaction parameter (the Förster radius) depends on the acceptor concentration. The Förster radius was found to be large for very low incorporated acceptor fractions ( |
| Databáze: | OpenAIRE |
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