What is it about?
Self-assembled aggregates of amphiphilic surfactant molecules formed on solid surfaces are similar to biological membranes. To understand the formation mechanism of these aggregates, we have studied the dynamic formation of self-organized monolayers from low-concentration sodium dodecyl sulfate (SDS) aqueous solutions (concentration below the critical micelle concentration) on gold surfaces, using a quartz crystal microbalance.
Featured Image
Why is it important?
Aggregates of amphiphilic molecules have several technological applications, such as sensors and drug encapsulation. Supported layers of such molecules on metallic surfaces can serve as models for biological membranes. We found that the dyamics of layer formation obeys a surrface critical concentration of tilted molecules, followed by proper nucleation sites for layer expansion.
Perspectives
This study contibuted to understand how the surfactant molecules behave when in very small concentrations, on metallic surfaces. The use for electrochemistry and sensors can be exploited.
Dr. Wyllerson Gomes
Read the Original
This page is a summary of: Sodium Dodecyl Sulfate Adsorbed Monolayers on Gold Electrodes, Langmuir, March 2007, American Chemical Society (ACS),
DOI: 10.1021/la063508+.
You can read the full text:
Contributors
The following have contributed to this page
