Directional Movement of Dendritic Macromolecules on Gradient Surfaces
| Autor: | Bart Jan Ravoo, E. W. Meijer, David N. Reinhoudt, Dorota I. Rozkiewicz, Theresa Chang |
|---|---|
| Přispěvatelé: | Macromolecular and Organic Chemistry, Macro-Organic Chemistry |
| Rok vydání: | 2007 |
| Předmět: |
Dendrimers
Macromolecular Substances Surface Properties Stereochemistry Imine Nanoparticle Bioengineering Polypropylenes Aldehyde Propyleneimine Diffusion Rhodamine chemistry.chemical_compound Dendrimer Rhodamine B METIS-241439 General Materials Science chemistry.chemical_classification Aldehydes Mechanical Engineering General Chemistry Condensed Matter Physics Nanostructures chemistry Biophysics IR-59470 Macromolecule |
| Zdroj: | Nano letters, 7(4), 978-980. American Chemical Society Nano Letters, 7(4), 978-980. American Chemical Society |
| ISSN: | 1530-6992 1530-6984 |
| DOI: | 10.1021/nl070005v |
| Popis: | A gradient-driven methodology has been developed to manipulate the movement of dendritic macromolecules. Poly(propyleneimine) dendrimers, labeled with rhodamine B, are attached to glass substrates via multiple imine bonds. The dendrimers are able to move on the surface by the hydrolysis and re-formation of these imine bonds. In the absence of an external stimulus, this random movement results in a two-dimensional diffusion on the substrate. We are able to bias the movement of these nanoparticles by means of an aldehyde gradient on the glass substrate. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|